Abstract: A method forms an implant with a base body made of a biocorrodible magnesium alloy. The methods make magnesium alloy that contains a plurality of statistically distributed particles, with one or more of the elements Y, Zr, Mn, Sc, Fe, Ni, Co, W, Pt and noble earths with the atomic numbers 57 to 71, or the particles comprise alloys or compounds containing one or more of the elements mentioned. The mean distance of the particles from each other is smaller than the hundredfold mean particle diameter.

Abstract: A compressor wheel that can be employed in devices such as turbochargers. The compressor wheel includes an axially extending hub having an inlet end, a shaft bore extending from the inlet end and an arcuate outer surface opposed to the shaft bore. The axially extending hub is composed of a metal and has a porous region located proximate to the arcuate outer surface of the axially extending hub. The compressor wheel also includes a blade array disposed on the arcuate outer surface of the axially extending hub. The blade array has an outer surface and an inner region. The blade array comprises a plurality of circumferentially-spaced, radially and axially extending blades disposed thereon and is composed, at least in part of a polymeric material. Polymeric material located in the inner region of the blade array extends into the porous region defined in the axially extending hub.

Abstract: Metal alloy knit fabrics, thermal protective members formed therefrom and their methods of construction are disclosed. This unique capability to knit high temperature metal alloy wire that is drapable allows for the creation of near net-shape preforms at production level speed. Additionally, ceramic insulation can also be integrated concurrently to provide increased thermal protection. The metal alloy knit fabrics described herein overcome the limitations of current welded stainless steel mesh seal coverings by providing coverings that withstand higher operational temperatures than stainless steel, are wear and snag resistant, can be a separate seal layer or as a portion of an integrated seal construction, can accommodate tight curvature changes to achieve complex shapes without wrinkling or buckling, and can be joined in the knitting process, sewed or mechanically fastened, without the need for welding.

Abstract: An exemplary bus bar assembly includes a first layer and a second layer directly adjacent the first layer. The first layer and the second layer each have a section made of a first material and extending from a first end portion to an opposing, second end portion. The first and second end portions include a second material different than the first material. An exemplary method of forming a bus bar includes joining a section of a first bus bar layer and a section of a second bus bar layer to a respective first end portion and a respective second end portion. The sections of the first and second bus bar layers are made of a first material. The first and second end portions include a second material different than the first material.

Abstract: A knife edge seal includes a pedestal and a knife edge with a tip and a base. The base rests on the pedestal. The base has a first width and the tip has a second width, and the ratio of the first width to the second width is in the range of 5:1 to 15:1. A gas turbine engine and a method of sealing a high pressure area from a low pressure area are also disclosed.

Abstract: Chain element (2), particularly a chain pin (4) for joining at least two chain links (3), which element is formed from a base material (5) containing carbon, particularly steel, characterized in that it has a surface layer (7) containing boron and vanadium, wherein the surface layer (7) is produced by a method according to which, in a first method step, an intermediate layer (6) containing carbon and vanadium is formed by at least one measure for the diffusion of vanadium into surface regions close to the surface of the base material (5) and, in a subsequent second method step, the surface layer (7) is formed by the transformation of the intermediate layer (6) by at least one measure for the diffusion of boron into the intermediate layer (6).

Abstract: A cold-rolled sheet is provided. The cold-rolled sheet is annealed and pre-coated for the fabrication of press hardened parts, composed of a steel substrate for heat treatment with a carbon content C0 between 0.07% and 0.5%, expressed by weight, and a metal pre-coating on at least the two principal faces of the steel substrate. The substrate comprises a decarburized area on the surface of each of the two principal faces. The depth p50% of the decarburized area is between 6 and 30 micrometers, and p50% is the depth at which the carbon content is equal to 50% of the content C0. The sheet does not contain a layer of iron oxide between the substrate and the metal pre-coating. Processes are also provided.

Abstract: An adjustable printing-height three-dimensional printer includes a base, an elevating module, a working platform, a nozzle bracket, a printing nozzle, and a driver. The elevating module is disposed on the base. The working platform is located proximal to the base. The nozzle bracket is operably engaged with the first elevating module. The printing nozzle is operably engaged with the nozzle bracket and is configured to print on the working platform. The driver is configured to drive the elevating module to move the nozzle bracket along an axial direction, so as to make the printing nozzle to move toward or away from the working platform.

Abstract: An alloy material includes: a composition containing 17 at % to 25 at % of silver (Ag), 30 at % to 45 at % of palladium (Pd), and 30 at % to 53 at % of copper (Cu) in a composition range of a ternary alloy of Ag, Pd, and Cu; and at least one of manganese (Mn), tin (Sn), silicon (Si), antimony (Sb), titanium (Ti) and magnesium (Mg) added to the composition in a range of 4.5 at % or less, and the Mn in a range of 0.5 at % to 3.5 at %, the Sn in a range of 1 at % to 2 at %, the Si in a range of 0.5 at % to 2 at %, the Sb in a range of 0.5 at % to 3 at %, the Ti in a range of 0.5 at % to 2 at %, and the Mg in a range of 0.5 at % to 3.5 at % are added to the composition.

Abstract: A three-dimensional object printer uses a mechanical system to adjust a vertical height of a platform that supports a substrate for formation of a three-dimensional object in the printer. The mechanical system includes a Geneva mechanism operated by a rack and pinion arrangement to drive differential screws and adjust a vertical distance between the platform and a printhead in the printer.

Abstract: The present invention provides a method for manufacturing a hot stamped body having a vertical wall, the method including: a hot-rolling step; a coiling step; a cold-rolling step; a continuous annealing step; and a hot stamping step, in which the continuous annealing step includes a heating step of heating the cold-rolled steel sheet to a temperature range of equal to or higher than Ac1° C. and lower than Ac3° C.; a cooling step of cooling the heated cold-rolled steel sheet from the highest heating temperature to 660° C. at a cooling rate of equal to or less than 10° C./s; and a holding step of holding the cooled cold-rolled steel sheet in a temperature range of 550° C. to 660° C. for one minute to 10 minutes.

Abstract: The present invention relates to a method of making a timepiece plate. This method is characterized in that it includes the following steps: a) taking (A1, A2) the material forming the plate including at least one metallic element; b) forming (B1, B2) the plate; c) cooling (C) everything so as to obtain the timepiece plate in an at least partially amorphous state; and d) retrieving (D) the plate.

Abstract: A method of fabricating a Ti-6Al-4V titanium alloy component including solution heat treating a forged Ti-6Al-4V titanium alloy component at a temperature within the alpha+beta two-phase field for the material of the component for a predetermined period of time, and subsequently cooling the component. The component is then age heat treated using an overaging process at a predetermined overaging temperature for a predetermined time, and the component is cooled to room temperature. The overaging temperature is selected to be a higher temperature than an aging heat treatment temperature for effecting a maximum yield strength in the component.

Abstract: A magnetic field shielding sheet includes: at least one layer thin magnetic sheet made of a Fe-based amorphous alloy and flake-treated so as to be separated into a plurality of fine pieces; a protective film that is adhered on one surface of the thin magnetic sheet via a first adhesive layer provided on one side of the protective film; and a double-sided tape that is adhered on the other surface of the thin magnetic sheet via a second adhesive layer provided on one side of the double-sided adhesive tape, wherein the thin magnetic sheet is obtained by heat treating an amorphous ribbon sheet made of the Fe-based amorphous alloy at a temperature of 300° C. to 480° C. A method of manufacturing the magnetic field shielding sheet, and a portable terminal device using the magnetic field shielding sheet are disclosed.

Abstract: An annealing process for a TMR or GMR sensor having an amorphous free layer is disclosed and employs at least two annealing steps. A first anneal at a temperature T1 of 200° C. to 270° C. and for a t1 of 0.5 to 15 hours is employed to develop the pinning in the AFM and pinned layers. A second anneal at a temperature T2 of 260° C. to 400° C. where T2>T1 and t1>t2 is used to crystallize the amorphous free layer and complete the pinning. An applied magnetic field of about 8000 Oe is used during both anneal steps. The mechanism for forming a sensor with high MR and robust pinning may involve structural change in the tunnel barrier or at an interface between two of the layers in the spin valve stack. A MgO tunnel barrier and a CoFe/CoB free layer are preferred.

Abstract: Method for the production of braking elements for vehicles, in particular brake pads, including a die forming step by means of fine and/or traditional shearing of a metal support and a molding step upon the metal support of a block of friction material; the friction material is selected from the group of asbestos free materials, while the metal plate is made of an aluminum alloy selected from the group consisting of aluminum alloys subjected to precipitation hardening (age-hardening alloys) and is made from the fine and/or traditional shearing of a metal sheet when the alloy is in a solubilized state; the alloy, being aged during a friction material baking step, gains its mechanical properties needed for its operation.

Abstract: A method of forming an insulated conductor, includes forming an insulated conductor to modify a cross sectional shape thereof Heating at least a portion of the insulated conductor to a selected temperature range. Maintaining the selected temperature range for at least a selected period of time thereby annealing the conductor. Forming the insulated conductor into a plurality of gable shaped loops; and maintaining insulating properties of an insulation layer of the insulated conductor.

Abstract: A nickel base repair alloy comprises a blend of about 40 to 60 wt % of a first nickel based braze alloy containing boron, about 15 to 35 wt % of a first nickel based filler material, and the remainder consisting of a blend of a second nickel based filler material and a low melting eutectic braze nickel based alloy.

Abstract: Methods of producing composite products formed between at least two different metal structures in a side-by-side configuration are provided. The method includes providing at least two structures made of different materials that are not compatible for welding or conventional cladding processes. A geometric profile is provided in at least one of the edges of the first structure, and a corresponding mirror image of the geometric profile is provided in a corresponding edge of the second structure. The two structures are positioned together so that the profiled edge or edges form a complimentary composite structure and are then solid-phase bonded to form a composite product. The process may be repeated with additional structure at either end of the first or second structure to achieve multiple side-by-side products. The methods and corresponding products provided herein yield edge to edge products suitable for various electrical connection type applications.

Abstract: An aluminum alloy fin material for a heat exchanger having suitable strength before brazing enabling easy fin formation, having high strength after brazing, having a high thermal conductivity (electrical conductivity) after brazing, and having superior sag resistance, erosion resistance, self corrosion prevention, and sacrificial anode effect, a method of production of the same, and a method of production of a heat exchanger using the fin material are provided, that is, an aluminum alloy fin material having a chemical composition of Si: 0.7 to 1.4 wt %, Fe: 0.5 to 1.4 wt %, Mn: 0.7 to 1.4 wt %, and Zn: 0.5 to 2.5 wt %, Mg as an impurity limited to 0.

Abstract: The present invention disclosed a method of producing a three-dimensional porous tissue in-growth structure. The method includes the steps of depositing a first layer of metal powder and scanning the first layer of metal powder with a laser beam to form a portion of a plurality of predetermined unit cells. Depositing at least one additional layer of metal powder onto a previous layer and repeating the step of scanning a laser beam for at least one of the additional layers in order to continuing forming the predetermined unit cells. The method further includes continuing the depositing and scanning steps to form a medical implant.

Abstract: The invention relates to a method for producing a metal structural component, in particular a vehicle structural component, in which a steel part is hot formed and is hardened at least over sections by contact with a tool surface, in which the steel part is during the hardening cooled in at least two partial regions at different cooling rates, so that the partial regions after the hardening differ in their microstructure, wherein the cooling rates differing from one another are produced by sections of the tool surface corresponding to the partial regions of the steel part, which differ from one another as regards their thermal conductivities. The invention also relates to a further method for producing a metal structural component, as well as a tool and a batch furnace.

Abstract: There is provided a bumper beam that is formed of a 7000 series aluminum alloy hollow extrusion, has a crushed longitudinal portion, and locally has a low-hardness region in a bumper stay joint section. A portion (portion to be heated) of end portions of the bumper beam formed of a tempered member of a heat-treatable aluminum alloy extrusion is subjected to reversion treatment, thereby forming a heat-affected zone in a bumper stay joint section. An end region (portion to be crushed) of the heated portion is subjected to cold crushing, and then the whole bumper beam is subjected to age hardening. The heated portion and a non-heat-affected zone are hardened through the age hardening, thereby forming a low-hardness region that overlaps the joint section in a portion of the heat-affected zone.

Abstract: An object of the present invention is to provide a motor rotor support suitable for an axial gap motor and a method for manufacturing the same. The motor rotor support for supporting a magnetic body disposed on a rotor of the motor is configured by laminating single materials each formed from a hot-worked material or a cold-worked material preferably composed of an 18Mn-18Cr nonmagnetic steel.

Abstract: Method for producing an extrusion die having a functional surface for metal extrusion material, comprising the following steps: providing a die support body, depositing a weldable substance containing cobalt and/or nickel onto a subsection of the die support body by means of an effective bonding application process to produce an inseparable deposition layer, machining the deposition layer in a chipping and/or material removal process to form the functional surface of the extrusion die, and carrying out a CVD coating process with a reaction gas at least on the functional surface.

Abstract: A system for hot-forming blanks (P) includes at least one heating device (4) and at least one pressing device (8) arranged downstream of the at least one heating device (4), and at Least one reheating device (16) for at least partially acting upon the blanks formed in the pressing device with heat provided downstream of the pressing device (2). A method is also provided.

Abstract: Surfaces of magnesium-base alloy workpieces may be mechanically worked and deformed to increase their resistance to corrosion, especially corrosion occurring in the presence of water or water and salt or other corrosive media. Workpiece surfaces that are to be thus protected are engaged in squeezing, sliding, and frictional contact with a suitable burnishing or other working tool that traverses the surface to compress and deform it and to refine the metallurgical grain structure. For example, the grain size is reduced in a surface layer that may extend to a depth of up to a few millimeters. And grain orientation is altered within that depth. The tool is not employed to intentionally remove material from the surface of the workpiece. The initial dimensioning of the workpiece may take into consideration the alteration of surfaces by the mechanical working process.

Abstract: It is an object of this invention to provide a bonding material capable of realizing bonding by metallic bonding at a bonding interface at a lower temperature compared to a bonding material using a metal particle having an average particle diameter of not more than 100 nm and a bonding method. There is provided a bonding material including a metal particle precursor being at least one selected from the group consisting of a particle of a metal oxide, a particle of a metal carbonate, and a particle of a metal carboxylate and having an average particle diameter of 1 nm to 50 ?m and a reducing agent composed of an organic substance, wherein the content of the metal particle precursor is more than 50 parts by mass and not more than 99 parts by mass per 100 parts by mass of the bonding material.

Abstract: A method for producing a single-clad or multiple-clad product includes providing a welded assembly comprising a cladding material disposed on a substrate material. Both the substrate material and the cladding material are individually selected alloys. At least a first edge of the cladding material of the welded assembly does not extend to a first edge of the substrate material and thereby provides a margin between the first edges. A material that is an alloy having hot strength greater than the cladding material is within the margin and adjacent the first edge of the cladding material. The welded assembly is hot rolled to provide a hot rolled band, and the material within the margin inhibits the cladding material from spreading beyond the edge of the substrate material during the hot rolling. In certain embodiments of the methods, the substrate material is stainless steel and the cladding material is nickel or a nickel alloy.

Abstract: A body, such as a pick tool for cutting coal, includes a steel substrate and a hard face structure fused to the steel substrate. The hard face structure includes at least 1 weight percent Si, at least 5 weight percent Cr and at least 40 weight percent W. Substantially the balance of the hard face structure includes carbon and an iron group metal M selected from Fe, Co, Ni and alloy combinations of these elements. The hard face structure includes a plurality of elongate or platelike micro-structures having a mean length of at least 1 micron, a plurality of nano-particles having a mean size of less than 200 nanometers, and a binder material.

Abstract: A cathodic member for electrochemical cells used in hypochlorite production comprises a zirconium plate coated with a zirconium oxide layer, which is particularly suitable for minimising the decomposition of the hypochlorite product while ensuring a prolonged lifetime. The coated zirconium plate can be used as the cathodic plate in a monopolar cell, or can be welded to a titanium plate for use in a bipolar configuration.

Abstract: A composite structure includes a matrix material having an intrinsic strain-to-failure rating in tension and a reinforcing material embedded in the bulk material. The reinforcing material is pre-stressed by a tensile force acting along one direction. The embedded reinforcing material interacts with the matrix material to place the composite structure into a compressive state. The compressive state provides an increased strain-to-failure rating in tension of the composite structure along a direction that is greater than the intrinsic strain-to-failure rating in tension of the matrix material along that direction. At least one of the matrix material and the reinforcing material is a bulk amorphous alloy (BAA). The reinforcing material can be a fiber or wire. In various embodiments, the matrix material may be a bulk amorphous alloy and/or the reinforcing material may be a bulk amorphous alloy.

Abstract: A graphene-coated steel sheet and a method for manufacturing the same are provided. The graphene-coated steel sheet includes a steel sheet and a graphene layer formed on the steel sheet. Therefore, the graphene-coated steel sheet can be useful in preventing corrosion of iron, such as oxidation of iron, and has remarkably excellent thermal conductivity and electrical conductivity, as well as excellent heat resistance resulting from thermal stability of graphene. Also, the method can be useful in manufacturing a high-quality graphene-coated steel sheet having a monocrystalline form and showing substantially no defects or impurities.

Abstract: A method to produce a metallic component is described. The method provides that an additional shot peening is performed on at least portion of component in order to obtain a fine grain structure during a following heat treatment in order to yield higher HCF because a finer grain structure is reached.

Abstract: A method for the production of hot-rolled steel strip comprising the following steps: providing a steel slab comprising, in weight percentages: Si: 2.5 to 3.5%, C: 0.05 to 0.1%, Mn: 0:05 to 0.1%, Als: 0.015 to 0.026%, N: 0.0050 to 0.0100%, and further comprising S and/or Se so that S+ (32/79) Se is in an amount of 0.018 to 0.030%, and optionally comprising one or more elements chosen among Sb in an amount of 0.015 to 0.035%, Cu in an amount of 0.08% to 0.25%, Sn in an amount of 0.06% to 0.15%, P in an amount of 0.005% to 0.015%, the balance being iron and unavoidable impurities, reheating said slab to a temperature between 1300° C. and 1430° C., roughing hot-rolling said slab to produce a blank having a thickness below 50 mm, finishing hot-rolling of said blank to produce a hot rolled strip in three rolling passes or more, the temperature of said blank during the first pass being above 1150° C.

Abstract: A method of producing a first part having at least one surface, formed of a first material. The first part includes at least one coating on the at least one surface. The production method includes: a) taking a second part including a cavity forming the negative of the first part; b) depositing the coating, including at least a first layer, onto the second part; c) taking a first metallic material, chosen for its ability to become at least partially amorphous; d) shaping the first material in the cavity of the second part so as to secure the coating to the at least one surface of the first part, the first material having been subject to a treatment allowing it to become at least partially amorphous, at the latest at the time of the shaping operation; e) separating the first part from the second part so as to obtain the first part coated with the coating.

Abstract: A method of assembling a device including first and second parts, the method including: taking the first and second parts; assembling the first and second parts provided by their arrangement so a gap is present between the first and second parts; taking a metal alloy, chosen for its ability to become at least partially amorphous; shaping the metal alloy to fill the gap between the first and second parts to join them and thereby form the device, the metal alloy having been subject to a treatment allowing the alloy to become at least partially amorphous, at a latest at a time of the shaping. The metal alloy is subject to a temperature increase above the melting temperature thereof causing the alloy to lose any local crystalline structure, the increase followed by cooling to a lower temperature than vitreous transition temperature thereof allowing the material to become at least partially amorphous.

Abstract: A method of treating an Al/Zn-based alloy coated product that includes an Al/Zn-based alloy coating on a substrate is disclosed. The method includes the steps of rapid intense heating of the alloy coating for a very short duration, and rapid cooling of the alloy coating, and forming a modified crystalline microstructure of the alloy coating.

Abstract: A method of forming an earth-boring tool includes introducing metal into a die, rotating the die to generate centrifugal forces on the metal, and cooling the metal in the rotating die. A rotary drill bit may include a unitary, centrifugally cast bit body including an integral shank, at least one blade, and at least one cutting element on the blade. A rotary drill bit or a roller cone may include a first centrifugally cast material and a second centrifugally cast material. Another rotary drill bit includes a bit body comprising a maraging steel alloy. A method of forming a rotary drill bit may include disposing cutting elements on a rotary drill bit comprising maraging steel and aging the rotary drill bit to form at least one intermetallic precipitate phase. Methods of repairing a rotary drill bit include annealing and aging at least a portion of a rotary drill bit.

Abstract: A method of hard-facing a steel casting is described in which a hard-facing, which comprises a weld alloy matrix and a hard particulate substance, is attached to the casting by welding. In some embodiments the matrix can be of a similar composition to the casting, and in other embodiments the hard particulates can be rounded and/or substantially spherical, or of a substantially even size. A method is also described for hardening and tempering a steel casting after attaching the hard-facing to the casting by welding. After hard-facing the casting is hardened and tempered by heat treatment. In one embodiment the hard-faced casting is heat treated by heating to a temperature in excess of the austenitising temperature of the steel and then cooled by quenching in an aqueous solution, followed by tempering. In one embodiment the steel casting is tempered at a temperature in the range about 550° C. to about 700° C. prior to hard-facing the casting.

Abstract: The present invention relates to a hollow drilling steel rod including a stem portion and a thread portion positioned at an end portion in an axial direction with respect to the stem portion, the hollow drilling steel rod being constituted of a steel having a specific composition described in the present specification, in which the thread portion includes a thread having been subjected to a high frequency quenching, and the thread portion and the stem portion separate from each other have been joined by a friction welding.

Abstract: A method for producing a single-clad or multiple-clad product includes providing a welded assembly comprising a cladding material disposed on a substrate material. Both the substrate material and the cladding material are individually selected alloys. At least a first edge of the cladding material of the welded assembly does not extend to a first edge of the substrate material and thereby provides a margin between the first edges. A material that is an alloy having hot strength greater than the cladding material is within the margin and adjacent the first edge of the cladding material. The welded assembly is hot rolled to provide a hot rolled band, and the material within the margin inhibits the cladding material from spreading beyond the edge of the substrate material during the hot rolling. In certain embodiments of the methods, the substrate material is stainless steel and the cladding material is nickel or a nickel alloy.

Abstract: Guide wire devices and methods for their manufacture. The guide wire devices described herein include an elongate guide wire member that includes at least one section fabricated from a nickel-titanium (Ni—Ti) alloy that exhibits an elevated plateau stress and a narrowed stress hysteresis profile (e.g., a plateau stress of about 500 MPa to about 820 MPa and a stress hysteresis width in a range from about 250 MPa to about 80 MPa). Raising the plateau stress and narrowing the stress hysteresis width of Ni—Ti used in a guide wire device can significantly improve the steerability of the guide wire device while maintaining the flexibility, durability, and kink resistance that is typical of superelastic Ni—Ti alloys.

Abstract: The present invention is directed to a method for protecting metal surfaces in oil & gas exploration and production, refinery and petrochemical process applications subject to solid particulate erosion at temperatures of up to 1000° C. The method includes the step of providing the metal surfaces in such applications with a hot erosion resistant cermet lining or insert, wherein the cermet lining or insert includes a) about 30 to about 95 vol % of a ceramic phase, and b) a metal binder phase, wherein the cermet lining or insert has a HEAT erosion resistance index of at least 5.0 and a K1C fracture toughness of at least 7.0 MPa-m1/2. The metal surfaces may also be provided with a hot erosion resistant cermet coating having a HEAT erosion resistance index of at least 5.0.

Abstract: The present disclosure uses different kinds of surface treatment processes on titanium-made dental implants. The growth and attachment conditions of bone cells (MC3T3-E), fibroblasts (NIH 3T3) and epidermal cells (XB-2) on the metal surface of titanium slices with different surface treatments are observed. Tetra-calcium phosphate is used to perform secondary sand-blasting process to clean up the metal surface and provide calcium ions for osteoblastoma physiology. Thus, by adjusting the cells adhesive and proliferative abilities, the success rate of the clinical applications in dental implant is improved.

Abstract: Processes for fabricating components to have two or more regions with different grain structures, and components produced by such processes. The processes entail performing at least one forging step on a preform to produce a profile having at least a first portion corresponding to the first region of the component. The preform is formed of a precipitation-strengthened alloy having a solvus temperature, and the at least one forging step comprises a nonfinal forging step performed at a first strain rate and at a first subsolvus temperature that is below the solvus temperature of the alloy. A subsequent forging step is performed on the profile to produce a final profile comprising the first portion and a second portion corresponding to the second region of the component.

Abstract: The present invention is directed to a method for protecting metal surfaces in oil & gas exploration and production, refinery and petrochemical process applications subject to solid particulate erosion at temperatures of up to 1000° C. The method includes the step of providing the metal surfaces in such applications with a hot erosion resistant cermet lining or insert, wherein the cermet lining or insert includes a) about 30 to about 95 vol % of a ceramic phase, and b) a metal binder phase, wherein the cermet lining or insert has a HEAT erosion resistance index of at least 5.0 and a K1C fracture toughness of at least 7.0 MPa-m1/2. The metal surfaces may also be provided with a hot erosion resistant cermet coating having a HEAT erosion resistance index of at least 5.0.

Abstract: A point chisel includes a substantially cylindrical shank and a working end region that tapers to a point. The working end region has at least three converging substantially planar surfaces, each with a protruding elongate rib extending along at least part of its length. Adjacent surfaces meet along at least part of their length at substantially straight edges between adjacent ribs. A flat chisel includes a substantially cylindrical shank and a working end region with a pair of converging substantially planar surfaces that include a plurality of protruding elongate ribs extending along at least part of its length. Each rib has, along the majority of its length, a substantially constant height above the surface from which it protrudes. Each chisel is made from steel, with the shank having a bainitic microstructure and the working end region having a martensitic microstructure.

Abstract: The present invention is directed to a method for protecting metal surfaces in oil & gas exploration and production, refinery and petrochemical process applications subject to solid particulate erosion at temperatures of up to 1000° C. The method includes the step of providing the metal surfaces in such applications with a hot erosion resistant cermet lining or insert, wherein the cermet lining or insert includes a) about 30 to about 95 vol % of a ceramic phase, and b) a metal binder phase, wherein the cermet lining or insert has a HEAT erosion resistance index of at least 5.0 and a K1C fracture toughness of at least 7.0 MPa-m1/2. The metal surfaces may also be provided with a hot erosion resistant cermet coating having a HEAT erosion resistance index of at least 5.0.

Abstract: A phosphor, which has less reduction in emission efficiency and is capable of keeping high luminance even when density of an electron beam for exciting the phosphor increases, is provided. As raw materials, Ca3N2 (2N), AlN (3N), Si3N4 (3N), and Eu2O3 (3N) are prepared, and each of the raw materials is weighed so that a mole ratio of each element is, for example, (Ca+Eu):Al:Si=1:1:1, and mixed, then the mixture is held and fired at 1500° C. under the inert atmosphere for three hours, and thereafter ground to produce a phosphor having a composition formula of Ca0.985SiAlN3:Eu0.015.