Abstract: A cold rolled and heat treated steel sheet having a composition including elements, expressed in percentage by weight 0.11%?Carbon?0.15%, 1.1%?Manganese?1.8%, 0.5%?Silicon?0.9%, 0.002%?Phosphorus?0.02%, 0%?Sulfur?0.003%, 0%?Aluminum?0.05%, 0%?Nitrogen?0.007%, and can contain one or more of optional elements 0.05%?Chromium?1%, 0.001%?Molybdenum?0.5%, 0.001%?Niobium?0.1%, 0.001%?Titanium?0.1%, 0.01%?Copper?2%, 0.01%?Nickel?3%, 0.0001%?Calcium?0.005%, 0%?Vanadium?0.1%, 0%?Boron?0.003%, 0%?Cerium?0.1%, 0%?Magnesium?0.010%, 0%?Zirconium?0.010% the remainder being composed of iron and unavoidable impurities, the microstructure of said steel sheet comprising, 50 to 80% Ferrite, 10 to 30% Bainite, 1 to 10% Residual Austenite, and 1% to 5% Martensite, wherein the cumulated amounts of Bainite and Residual Austenite is more than or equal to 25%.

Abstract: The present invention relates to a method for the manufacture of a coated steel sheet comprising the following successive steps: A. the coating of the steel sheet with a first coating consisting of nickel and having a thickness between 600 nm and 1400 nm, the steel sheet having the following composition in weight: 0.10<C<0.40%, 1.5<Mn<3.0%, 0.7<Si<3.0%, 0.05<Al<1.0%, 0.75<(Si+Al)<3.0%, and on a purely optional basis, one or more elements such as Nb?0.5%, B?0.010%, Cr?1.0%, Mo?0.50%, Ni?1.0%, Ti?0.5%, the remainder of the composition making up of iron and inevitable impurities resulting from the elaboration, B. the recrystallization annealing at a temperature between 820 to 1200° C., C. the coating with a second coating based on zinc not comprising nickel.

Abstract: The present invention relates to a method for the manufacture of a galvannealed steel sheet including the steps of A.) coating of the steel sheet with a first coating consisting of nickel and having a thickness between 150 nm and 650 nm, the steel sheet having the following composition in weight percentage 0.10<C<0.40%, 1.5<Mn<3.0%, 0.7<Si<3.0%, 0.05<Al<1.0%, 0.75<(Si+Al)<3.0%, and on a purely optional basis, one or more elements such as Nb?0.5%, B?0.010%, Cr?1.0%, Mo?0.50%, Ni?1.0%, Ti?0.5%., the remainder of the composition is made up of iron and inevitable impurities resulting from the elaboration, B.) annealing of the coated steel sheet being annealed at a temperature between 600 to 1200° C., C.) coating of the steel sheet obtained in step B.) with a second coating based on zinc and D.) an alloying heat treatment to form a galvannealed steel sheet.

Abstract: Galvannealed steel sheet having a steel substrate coated with a first alloy layer with iron and nickel directly topped by a second alloy layer based on zinc, the first and second alloyed layers being alloyed through diffusion such that the second alloy layer includes from 5 to 15 wt. % of iron, from 0 to 15 wt. % of nickel, a balance being zinc.

Abstract: Systems and methods for developing tough hypoeutectic amorphous metal-based materials for additive manufacturing, and methods of additive manufacturing using such materials are provided. The methods use 3D printing of discrete thin layers during the assembly of bulk parts from metallic glass alloys with compositions selected to improve toughness at the expense of glass forming ability. The metallic glass alloy used in manufacturing of a bulk part is selected to have minimal glass forming ability for the per layer cooling rate afforded by the manufacturing process, and may be specially composed for high toughness.

Abstract: A method for producing a steel component from a flat steel sheet is provided. The produced steel component includes a substrate and a coating. The method ensures that the steel component has an Hdiff content below a certain level. The low Hdiff content minimizes the risk of hydrogen-induced cracking of the steel component after hot forming, including during subsequent use of the steel component. The Hdiff content in the hot-formed steel component is ensured to be below a certain level by selecting furnace parameters depending on the rolling degree and the sheet thickness of the flat steel sheet.

Abstract: An additive manufacturing system configured to additively build an article can include an energy applicator, a build platform, and a powder nozzle configured to eject powder toward the build platform to be acted on by the energy applicator. The system can include a control module configured to control the energy applicator to create an amorphous structure forming at least a portion of the article.

Abstract: A method for resistance spot welding comprising the following successive steps: —providing at least two steel sheets with thickness (th) comprised between 0.5 and 3 mm, at least one of the sheets being a zinc or zinc-alloy coated steel sheet (A) with a tensile strength (TS) higher than 800 MPa and a total elongation (TEL) such as (TS)×(TEL)>14000 MPa %, wherein the composition of the steel substrate of (A) contains, in weight: 0.05%?C?0.4%, 0.3%?Mn?8%, 0.010%?Al?3%, 0.010%?Si?2.09%, with 0.5%?(Si+Al)?3.5%, 0.001%?Cr?1.0%, 0.001%?Mo?0.5% and optionally: 0.005%?Nb?0.1%, 0.005%?V?0.2%, 0.005%?Ti?0.1%, 0.0003%?B?0.005%, 0.001%?Ni?1.0%, the remainder being Fe and unavoidable impurities, —performing resistance spot welding of the at least two steel sheets for producing a weld with an indentation depth (IDepth) on the surface of said steel sheet (A) such as: 100 ?m?(IDepth)?18.68 (Znsol)?55.1, wherein (IDepth) is in micrometers and wherein Znsol is the solubility of Zn in the steel of sheet (A) at 750° C.

Abstract: Described herein is a golf club head that comprises a body and a strike plate. The body comprises a heel portion, a sole portion, a toe portion, and a top portion. The strike plate comprises an outer peripheral edge and at least a portion of a strike face. Furthermore, the strike plate is welded to the body via a peripheral weld between the outer peripheral edge of the strike plate and the body. The outer peripheral edge of the strike plate comprises at least one welded portion, welded to the body via the peripheral weld, and at least one non-welded portion, not welded to the body.

Abstract: An elastomeric bearing includes a first race having an axis of rotation, a second race coaxially arranged relative to the first race and spaced from the first race by a gap, a bearing body in the gap connecting the first race to the second race, the bearing body comprising a plurality of first laminae coaxial with the first race and a plurality of second laminae coaxial with the first race, the first laminae being formed from a different material than the second laminae, and a metal end cap connected to the first race or to the second race. The metal end cap includes an at least partially hollow interior and/or is formed by an additive manufacturing process.

Abstract: Provided is an Fe-based metal powder that is suitable for a process involving rapid melt-quenching and solidification, and that provides a shaped article having superior properties. The metal powder for shaping is made of an Fe-based alloy. The Fe-based alloy contains: Ni in an amount of 15.0% to 21.0% by mass; Co in an amount of 0% to 10.0% by mass; Mo in an amount of 0% to 7.0% by mass; Ti in an amount of 0.1% to 6.0% by mass; Al in an amount of 0.1% to 3.0% by mass; and the balance composed of Fe and incidental impurities.

Abstract: A ball striking device, such as a golf club head, has a face with a striking surface configured for striking a ball and a channel extending across a portion of the sole. The channel may be recessed from adjacent surfaces of the sole and have a depth of recession from the adjacent surfaces of the sole, wherein the channel comprises a center portion extending across a center of the sole, a heel portion extending from a heel end of the center portion toward the heel, and a toe portion extending from a toe end of the center portion toward the toe, wherein the width and the depth of the center portion of the channel are substantially constant, and wherein the depth of the channel is greater at the heel and toe portions than at the center portion.

Abstract: Provided are a thin hard disk substrate that is scratch-resistant on the disk surface and wobbles less during rotation and a hard disk device including such a hard disk substrate. The hard disk substrate 1 includes an aluminum alloy substrate 2 having NiP plating films 3 on the surfaces. The aluminum alloy substrate 2 has the Vickers hardness of 60 Hv or more, the ratio between the thickness of the NiP plating films 3 and the thickness of the Al alloy substrate 2 is 3.8% or more, the Young's modulus of the hard disk substrate 1 is 74.6 GPa or more, and the Vickers hardness of the hard disk substrate 1 is 293 Hv or more.

Abstract: A 3D printing device includes a printing substrate, a movable printing head configured for additively producing from a modelling material a component on the printing substrate, and a flexible printing space cover which, proceeding from the printing head, spans the printing substrate such that a closed printing space is formed between the printing head and the printing substrate, wherein a printing nozzle of the printing head for applying the modelling material protrudes into the printing space. A support structure of the device includes flexible support rods which run from the printing head to the printing substrate and which hold the printing space cover above the printing substrate.

Abstract: A method for bonding a first substrate with a second substrate, with the following sequence: production of a first amorphous layer on the first substrate and/or production of a second amorphous layer on the second substrate, bonding of the first substrate with the second substrate at the amorphous layer or at the amorphous layers to form a substrate stack, irradiation of the amorphous layer or the amorphous layers with radiation in such a way that the amorphous layer or the amorphous layers is/are transformed into a crystalline layer or crystalline layers.

Abstract: A method is provided for modifying a strain state of a block of a semiconducting material having a crystalline structure, including steps in the following order: a) forming an amorphous lower region in the block of semiconducting material resting on a substrate amorphous, while maintaining the crystalline structure of an upper region of the block, which is in contact with the lower region; b) performing at least one creep annealing of the block with a suitable duration and temperature so that creep occurs in the lower region and without recrystallizing the material of this lower region; and c) performing at least one recrystallization annealing of the lower region of the block.

Abstract: A method for homogenizing the compositions and mechanical performances of nickel-based material brazed joints, includes three homogenized manufacturing steps: Step I, assembling the welding sample, placing it into the vacuum furnace, and then heating up to 830˜860° C. and holding the temperature; then heating up again to 1050˜1100° C. and holding the temperature; allowing for slow self-cooling in vacuum till it reaches 620˜640° C.; then filling the furnace with nitrogen and starting the vacuum furnace fan at the same time, so that the sample is cooled down to 40˜60° C.; Step II, raising the temperature up to 1140˜1160° C. and holding, then cooling it down to the room temperature through water-quenching; Step III, raising the temperature of the welding sample up to 680˜750° C. again, and cooling it down to the room temperature through air cooling.

Abstract: An assembly for forming multiple nacelle components is disclosed. In accordance with various embodiments, the assembly includes a plurality of dies arranged about a central axis. A first one of the plurality of dies has a first wall and a first cavity extending through the first wall and a second one of the plurality of dies has a second wall and a second cavity extending through the second wall. The first wall and the second wall are configured to sandwich a pair of metal blanks there between. In various embodiments, a structural ring is configured to surround the plurality of dies.

Abstract: A high strength galvanized steel sheet having excellent surface qualities, plating adhesion, and formability is provided, wherein a galvanized layer is formed on a cold-rolled steel sheet comprising 0.1-0.3 wt % of C, 1-2.5 wt % of Si, 2.5-8 wt % of Mn, 0.001-0.5 wt % of sol. Al, at most 0.04 wt % of P, at most 0.015 wt % of S, at most 0.02 wt % of N (excluding 0 wt %), 0.1-0.7 wt % of Cr, at most 0.1 wt % of Mo, (48/14)*[N] to 0.1 wt % of Ti, 0.005-0.5 wt % of Ni, 0.01-0.07 wt % of Sb, at most 0.1 wt % of Nb, and at most 0.005 wt % of B, with the remainder being Fe and other inevitable impurities.

Abstract: Turbine wheels, turbine engines, and methods of fabricating the turbine wheels are provided. An exemplary method includes fabricating a turbine wheel that includes a rotor disk and a plurality of turbine blades operatively connected to the rotor disk through a blade mount. The method includes locating a cooling passage within a blade mount preliminary configuration and a cooling inlet on a surface of the blade mount preliminary configuration. A rotor disk bonding surface geometry and a blade mount bonding surface geometry are designed based upon a stress analysis of the turbine wheel and locations of the cooling passage and cooling inlet. A rotor disk production configuration and a blade mount production configuration are generated based upon the preliminary configurations. A blade mount and a rotor disk are formed based upon the production configurations. A blade ring including a plurality of blade mounts is formed and bonded to the rotor disk.

Abstract: A method of additive manufacturing and heat treatment. A substrate is secured to a fixture and an additive manufacturing system is operated to perform a build process by building a part on the substrate secured to the fixture, the part being built by forming a series of layers of metallic material on the substrate, the metallic material melting and solidifying during the build process thereby bonding the part to the substrate and creating thermally induced stress in the part. The part, the substrate and the fixture are moved together from the additive manufacturing system to a heat treatment system, wherein the substrate remains secured to the fixture and the part remains bonded to the substrate as they are moved. The heat treatment system is operated to perform a heat treatment process by heating the part, the substrate and the fixture together thereby relieving the thermally induced stress in the part, the substrate remaining secured to the fixture during the heat treatment process.

Abstract: Iron-type golf club heads are disclosed having a heel portion, a sole portion, a toe portion, a top-line portion, a front portion, a rear portion, and a striking face. The iron-type golf club heads include a flexible boundary structure (“FBS”) that is provided at one or more locations on the club head. The flexible boundary structure may comprise, in several embodiments, a slot, a channel, a gap, a thinned or weakened region, or other structure that enhances the capability of an adjacent or related portion of the golf club head to flex or deflect and to thereby provide a desired improvement in the performance of the golf club head.

Abstract: Described herein is a golf club head that comprises a body and a strike plate. The body comprises a heel portion, a sole portion, a toe portion, and a top portion. The strike plate comprises an outer peripheral edge and at least a portion of a strike face. Furthermore, the strike plate is welded to the body via a peripheral weld between the outer peripheral edge of the strike plate and the body. The outer peripheral edge of the strike plate comprises at least one welded portion, welded to the body via the peripheral weld, and at least one non-welded portion, not welded to the body.

Abstract: A wear panel for mining and materials handling applications is provided. The wear panel includes a housing matrix (1) with a top surface (2), a bottom surface (3) opposite the top surface (2) and at least one cavity (4) with cavity walls (5). The cavity (4) extends through the top surface (2) and the bottom surface (3). The wear panel also includes at least one wear-resistant member (6) with a preformed shape. The at least one wear-resistant member (6) has a top surface (7) and a bottom surface (8) opposite the top surface (7). The wear-resistant members (6) are disposed in the cavity (4) and are locked into place by their preformed shape and the cavity walls (5).

Abstract: A hot-rolled steel sheet having a tensile strength greater than 800 MPa and an elongation at break greater than 10% is provided. A composition of the steel includes, the contents being expressed by weight: 0.050%?C?0.090%, 1%?Mn?2%, 0.015%?Al?0.050%, 0.1%?Si?0.3%, 0.10%?Mo?0.40%, S?0.010%, P?0.025%, 0.003%?N?0.009%, 0.12%?V?0.22%, Ti?0.005%, Nb?0.020% and optionally, Cr?0.45%. A balance of the composition includes iron and inevitable impurities resulting from the smelting. A microstructure of the sheet or part includes, as a surface fraction, at least 80% upper bainite, and a remainder includes lower bainite, martensite and residual austenite. A sum of the martensite and residual austenite, as a surface fraction, is less than 5%.

Abstract: A golf club head including a crown, a sole, a hosel, a face and a flexure. The flexure provides compliance during an impact between the golf club head and a golf ball, and is tuned to vibrate, immediately after impact, at a predetermined frequency.

Abstract: A ball striking device, such as an iron-type golf club head, includes a face having a ball striking surface and a rear surface, and a body connected to the face. The body has a sole member and a rear cavity defined at least partially by the sole member and the rear surface of the face. The body has an elongated, recessed channel extending within the cavity along a juncture line between the rear surface of the face and the sole member. Additionally, the head is formed in part by a face member having a first leg forming at least a major portion of the face and a second leg extending rearwardly from a bottom end of the first leg and forming at least a portion of the sole member. The head may further be formed by a body member connected to the face member.

Abstract: Metal ingots for forming single-crystal shape-memory alloys (SMAs) may be fabricated with high reliability and control by alloying thin layers of material together. In this improved method, a reactive layer (e.g., aluminum) is provided in thin flat layers between layers of other materials (e.g., copper and layers of nickel). When the stacked layers are vacuum heated in a crucible to the melting temperature of the reactive layer, it becomes reactive and chemically bonds to the other layers, and may form eutectics that, as the temperature is further increased, melt homogeneously and congruently at temperatures below the melting temperatures of copper and nickel. Oxidation and evaporation are greatly reduced compared to other methods of alloying, and loss of material from turbulence is minimized.

Abstract: A golf club head including a face having a flat ball-striking surface and a body that form a flexure. The golf club head has a feature formed in a sole of the golf club head that provides a flexure.

Abstract: Titanium alloy that is formed by subjecting titanium alloy to a treatment containing a hydrogen storing step for making the titanium alloy store hydrogen therein, a solution-treatment step for heating the titanium alloy having the hydrogen stored therein in the hydrogen storage step to apply a solution treatment to the hydrogen-stored titanium alloy, a cooling step for cooling the heated hydrogen-stored titanium alloy to develop martensitic transformation in the hydrogen-stored titanium alloy, a hot rolling step for heating the martensitic-transformed titanium alloy to a temperature which is not more than a predetermined transformation point and hot-rolling the martensitic-transformed titanium, and a dehydrogenation step for dehydrogenating the hot-rolled titanium alloy, thereby bringing the titanium alloy with the superplastic property.

Abstract: A manufacturing method of oriented silicon steel with magnetic induction B8 of not less than 1.88 T, comprising the following steps: 1) smelting and continuous casting to obtain a slab, wherein the content of N is controlled at 0.002-0.014 wt % in the smelting stage; 2) hot-rolling; 3) cold-rolling; 4) decarbonizing and annealing; 5) nitriding treatment, wherein infiltrated nitrogen content [N]D is controlled to satisfy the formula: 328?0.14a?0.85b?2.33c?[N]D?362?0.16a?0.94b?2.57c, wherein a is the content of Als in the smelting step, with the unit of ppm; b is the content of N element, with the unit of ppm; and c is primary grains size, with the unit of ?m; 6) coating a steel's surfaces with a magnesium oxide layer and annealing; and 7) applying an insulating coating.

Abstract: Systems, computer readable media, and methods for printing of 3D objects in color are disclosed. In general, a 3D object may be produced and colored by a 3D printer using the same digital 3D model. The digital model for a desired 3D object may be revised to include a process for coloring the object by the 3D printer. In one embodiment, this may involve coloring to the object after it has been made. In an alternative embodiment, color may be added as the object is being made. Because the 3D model provides knowledge of the surface, contours and all the coordinates of the 3D object being printed, the object can be colored using the same digital model.

Abstract: An iron type golf club head includes a body part that is provided with a face surface and a sole surface; and a hosel part that is connected to the body part. A lower part of a back surface of the body part is an expansion part that expands rearward, a slit is disposed, which penetrates the expansion part from an upper surface to a lower surface of the expansion part, an elastic body is arranged in the vicinity of an upper part of the slit.

Abstract: A method for joining engine components includes positioning a first plurality of thermal protection structures across a thermal protection space between a first thermal protection surface and a second thermal protection surface. The first and second engine components are locally joined by forming a first plurality of transient liquid phase (TLP) or partial transient liquid phase (PTLP) bonds along corresponding ones of the first plurality of thermal protection structures between the first thermal protection surface and the second thermal protection surface. The second thermal protection surface is formed from a second surface material different from a first surface material of the first thermal protection surface.

Abstract: A wear resistant casting and method of fabrication thereof, the casting comprising inserts embedded in a matrix; each insert having a form such that a ratio A/B in any mutually perpendicular section that passes through the center of mass of the insert is comprised between 0.4 and 2.5, and a distance C between two insert is at least two times smaller that a width thereof; the inserts forming at least one grid.

Abstract: Metal ingots for forming single-crystal shape-memory alloys (SMAs) may be fabricated with high reliability and control by alloying thin layers of material together. In this improved method, a reactive layer (e.g., aluminum) is provided in thin flat layers between layers of other materials (e.g., copper and layers of nickel). When the stacked layers are vacuum heated in a crucible to the melting temperature of the reactive layer, it becomes reactive and chemically bonds to the other layers, and may form eutectics that, as the temperature is further increased, melt homogeneously and congruently at temperatures below the melting temperatures of copper and nickel. Oxidation and evaporation are greatly reduced compared to other methods of alloying, and loss of material from turbulence is minimized.

Abstract: A golf club head with a face insert that is only partially connected to the body of the golf club head is disclosed herein. More specifically, the present invention discloses a golf club head with a face insert wherein the face insert is only connected to the body of the golf club head at specific engagement portions around the perimeter of the face insert while keeping the remainder of the perimeter unengaged. The golf club head disclosed in accordance with the present invention will allow for removal of excessive weight traditionally needed to connect the face insert to the body of the golf club head, therefore improving the performance of the golf club head.

Abstract: The invention relates to a steel and to a flat steel product produced therefrom that have optimized mechanical properties and at the same time can be produced at low cost, without having to rely for this on expensive alloying elements that are subject to great fluctuations with regard to their procurement costs. The steel and the flat steel product have for this purpose the following composition according to the invention (in % by weight): C: 0.11-0.16%; Si: 0.1-0.3%; Mn: 1.4-1.9%; Al: 0.02-0.1%; Cr: 0.45-0.85%; Ti: 0.025-0.06%; B: 0.0008-0.002%, the remainder Fe and impurities that are unavoidable for production-related reasons, which include contents of phosphorus, sulfur, nitrogen or molybdenum as long as the following respectively apply for their contents: P: ?0.02%, S: ?0.003%, N: ?0.008%, Mo: ?0.1%. Similarly, the invention relates to a method for producing a flat steel product that consists of a steel according to the invention.

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: In a hot stamped steel, when [C] represents an amount of C (mass %), [Si] represents an amount of Si (mass %), and [Mn] represents an amount of Mn (mass %), an expression of 5×[Si]+[Mn])/[C]>10 is satisfied, a metallographic structure includes 80% or more of a martensite in an area fraction, and optionally, further includes one or more of 10% or less of a pearlite in an area fraction, 5% or less of a retained austenite in a volume ratio, 20% or less of a ferrite in an area fraction, and less than 20% of a bainite in an area fraction, TS×?, which is a product of TS that is a tensile strength and ? that is a hole expansion ratio is 50000 MPa·% or more, and a hardness of the martensite measured with a nanoindenter satisfies H2/H1<1.10 and ?HM<20.

Abstract: A high strength interstitial free low density steel and method for producing the steel.

Abstract: The invention relates to a cold-rolled flat steel product which, despite high strength values, has a high level of deformability characterised by a high elongation at break and a good hole expansion ratio A. For this purpose the flat steel product is produced from a steel that is composed of (in % by weight) C: 0.12-0.19%, Mn: 1.5-2.5%, Si: >0.60-1.0%, Al: ?0.1%, Cr: 0.2-0.6%, Ti: 0.05-0.15% with the remainder being iron and unavoidable impurities caused by the production process, and which comprises a perlite- and bainite-free structure having 4-20% by vol. martensite, 2-15% by vol. residual austenite, remainder ferrite, an elongation at break A80 of at least 15%, a tensile strength Rm of at least 880 MPa, a yield strength ReL of at least 550 MPa and a hole expansion ratio ?M of more than 6%. The invention also relates to a method which easily enables production of a flat steel product according to the invention.

Abstract: A hot-dip plated high-strength steel sheet for presswork having a tensile strength of 340 MPa or more and less than 540 MPa, a press formability capable of being applied to a fuel tank, excellent secondary work brittleness resistance and low-temperature toughness of a seam weld zone, and excellent corrosion resistance, is provided. It is characterized in that, in a high-strength steel sheet having a hot-dip plated layer on a surface of a cold-rolled steel sheet, the cold-rolled steel sheet contains, by mass %, C: 0.0005 to 0.0050%, Si: 0.30% or less, Mn: 0.70 to 3.00%, P: 0.05% or less, Ti: 0.01 to 0.05%, Nb: 0.01 to 0.04%, B: 0.0005 to 0.0030%, S: 0.01% or less, Al: 0.01 to 0.30%, N: 0.0005 to 0.010%, and a balance composed of Fe and inevitable impurities, and when the Ti content (%) is set to [Ti], the B content (%) is set to [B], and the P content (%) is set to [P], TB* defined by the following expression <A> is 0.03 to 0.06, and [B] and [P] satisfy the following expression <B>. TB*=(0.

Abstract: A centrifugally cast composite roll for hot rolling comprising an outer layer having a composition comprising by mass 0.8-3.5% of C, 0.1-2.5% of Si, 0.1-2.5% of Mn, 1.2-15% of Cr, 1-5% of Ni, and 1-10% of Mo+0.5×W, the balance being substantially Fe and inevitable impurities, and an inner layer made of an iron-based alloy and integrally fused to the outer layer; the outer layer having Shore hardness of 67-82 at the initial diameter of the composite roll; and the maximum Shore hardness of the outer layer in a range 30 mm or more deep from the initial diameter being higher by 1 or more than the Shore hardness of the outer layer at the initial diameter.

Abstract: A cold rolled steel sheet according to the present invention satisfies an expression of (5×[Si]+[Mn])/[C]>11 when [C] represents an amount of C by mass %, [Si] represents an amount of Si by mass %, and [Mn] represents an amount of Mn by mass %, a metallographic structure before hot stamping includes 40% to 90% of a ferrite and 10% to 60% of a martensite in an area fraction, a total of an area fraction of the ferrite and an area fraction of the martensite is 60% or more, a hardness of the martensite measured with a nanoindenter satisfies an H2/H1<1.10 and ?HM<20 before the hot stamping, and TS×? which is a product of a tensile strength TS and a hole expansion ratio ? is 50000 MPa·% or more.

Abstract: A retention pin assembly may include a stud having a head, a shaft, and a deformable end. The shaft may include a stepped surface having a greater diameter than the deformable end. The assembly may include a support member having an opening for receiving the deformable end. The support member may include a pocket. The stepped surface of the shaft may position the stud in relation to the support member. The deformable end of the stud may be operable to be melted to form a mechanical retainer within the pocket without forming a metallurgical joint between the stud and the pocket.

Abstract: A method and device for making metallic glass includes a step of preparing metal or alloy; a step of melting metal or alloy into liquid metal; a step of putting the liquid metal into a boiler and applying pressure into the boiler and the liquid metal being ejected into lines from an outlet located at the lower portion of the boiler; a step of cooling the ejected lines from the outlet of the boiler in a cooling tank by quick-flowing coolant; a step of forming straight metallic glass fibers and sinking the metallic glass fibers to the bottom of the cooling tank; a step of weaving the metallic glass fibers into pieces, and a step of overlapping the pieces into a metallic glass. The lower portion of the boiler is merged into the cooling tank.

Abstract: The invention relates to a method for producing a hot strip from transformation-free ferritic steel, wherein a melt is cast into a roughed strip and the latter is subsequently rolled into a hot strip. For this purpose, it is provided that the melt is cast in a horizontal strip casting facility under conditions of a calm flow and free of bending into a roughed strip in the range between 6 and 20 mm and is subsequently rolled into hot strip having a degree of deformation of at least 50%.

Abstract: A method of repairing or manufacturing a superalloy component (50) by depositing a plurality of layers (22, 24, 26, 28) of additive superalloy material having a property that is different than an underlying original superalloy material (30). The property that is changed between the original material and the additive material may be material composition, grain structure, principal grain axis, grain boundary strengthener, and/or porosity, for example. A region (60) of the component formed of the additive material will exhibit an improved performance when compared to the original material, such as a greater resistance to cracking (58).

Abstract: A steel sheet which uses steel sheet which contains the easily oxidizable elements Si and Mn as a base material and which is provided with a hot dip galvanized layer which is excellent in plating wettability and plating adhesion and a method of production of the same are provided. A hot dip galvanized steel sheet which is comprised of a steel sheet having a hot dip galvanized layer A on the surface of the steel sheet, characterized by having the following B layer right under the steel sheet surface and in the steel sheet: B layer: Layer which has thickness of 0.001 ?m to 0.5 ?m, which contains, based on mass of the B layer, one or more of Fe, Si, Mn, P, S, and Al oxides in a total of less than 50 mass %, which contains C, Si, Mn, P, S, and Al not in oxides in C: less than 0.05 mass %, Si: less than 0.1 mass %, Mn: less than 0.5 mass %, P: less than 0.001 mass %, S: less than 0.001 mass %, and Al: less than 0.005 mass % and which contains Fe not in oxides in 50 mass % or more.