Abstract: A spiral spring is configured to equip a balance of a horological movement. The spiral spring is made of an alloy consisting of: Nb, Ti and at least one element selected from V and Ta, optionally at least one element selected from Zr and Hf, optionally at least one element selected from W and Mo, possible traces of other elements selected from O, H, C, Fe, N, Ni, Si, Cu, Al, with the following weight percentages: a total content of Nb, V and Ta comprised between 40 and 85%, a total content of Ti, Zr and Hf comprised between 15 and 55%, a content for W and Mo respectively comprised between 0 and 2.5%, a content for each of the elements selected from O, H, C, Fe, N, Ni, Si, Cu, Al between 0 and 1600 ppm with the sum of the traces less than or equal to 0.3% by weight.

Abstract: A heat-resistant and soluble magnesium alloy, and a preparation method having an elemental composition at the following atomic percentage: Lu 0.10% to 8.00%, Ce 0.001 to 0.05%, Al 0.10% to 0.60%, Ca 0.001% to 0.50%, Cu 0.01% to 1.00%, Ni 0.01% to 1.00%, impurity elements <0.30%, and the rest is Mg, and formed in magnesium alloys are high temperature phase of Lu5Mg24, Mg2Cu, Mg2Ni, Mg12Ce, Al11Ce3 and (Mg, Al)2Ca, and Long Period Stacking Ordered (LPSO) phases as Mg—Lu—Al and Mg—Ce—Al. The magnesium alloy has good mechanical performances at 150° C., and a dissolution rate of 30 to 100 mg·cm?2h?1 in a 3% KCl solution at 93° C.

Abstract: The present invention is intended to provide a rolled copper foil for a secondary battery negative electrode current collector which can satisfactorily suppress rupture of the copper foil caused by stress generation or the like due to volume change of an active material. A rolled copper foil for a secondary battery negative electrode current collector, wherein a tensile strength in a direction parallel to the rolling direction is 600 MPa or more, and a breaking elongation in the direction parallel to the rolling direction is 2.0% or more; and wherein a tensile strength in a direction orthogonal to the rolling direction is 640 MPa or more, and a breaking elongation in the direction orthogonal to the rolling direction is 3.5% or more.

Abstract: A spiral timepiece spring with a two-phase structure, made of a niobium and titanium alloy, and method for manufacturing this spring, including producing a binary alloy containing niobium and titanium, with niobium: the remainder to 100%; titanium between 45.0% and 48.0% by mass of the total, traces of components among O, H, C, Fe, Ta, N, Ni, Si, Cu, Al, of between 0 and 1600 ppm by mass of the total individually, and less than 0.3% by mass combined; applying deformations alternated with heat treatments until a two-phase microstructure is obtained including a solid solution of niobium with ?-phase titanium and a solid solution of niobium with ?-phase titanium, the ?-phase titanium content being greater than 10% by volume, with an elastic limit higher than 1000 MPa, and a modulus of elasticity higher than 60 GPa and less than 80 GPa; wire drawing to obtain wire able to be calendered; calendering or winding.

Abstract: A method of processing a workpiece to inhibit precipitation of intermetallic compounds includes at least one of thermomechanically processing and cooling a workpiece including an austenitic alloy. During the at least one of thermomechanically working and cooling the workpiece, the austenitic alloy is at temperatures in a temperature range spanning a temperature just less than a calculated sigma solvus temperature of the austenitic alloy down to a cooling temperature for a time no greater than a critical cooling time.

Abstract: An object of the present invention is to provide an ?+? titanium alloy cold-rolled and annealed sheet having a high strength and a high Young's modulus in the sheet width direction. A titanium alloy sheet in which, when the texture in the sheet plane direction is analyzed, the ratio XTD/XND between the X-ray relative intensity peak value (XTD) in directions close to the sheet width direction and the X-ray relative intensity peak value (XND) in directions close to the normal-to-sheet-plane direction on the (0002) pole figure of the ?-phase is 5.0 or more and which contains, in mass %, Fe: 0.8% to 1.5% and N: 0.020% or less and has an oxygen-equivalent Q of 0.34 to 0.55. Annealing of the titanium alloy sheet is performed at not less than 500° C. and less than 800° C. in the case where the cold rolling rate is less than 25% and at not less than 500° C. and less than 620° C. in the case where the cold rolling rate is 25% or more.

Abstract: An article and method of forming the article are disclosed. The article has a surface comprising a nanostructured ferritic alloy. The surface includes a plurality of nanofeatures that include complex oxides of yttrium and titanium disposed in an iron-bearing alloy matrix. The iron-bearing alloy matrix at the surface includes about 5 weight percent to about 30 weight percent of chromium, and about 0.1 weight percent to about 10 weight percent of molybdenum. Further, a concentration of a chi phase or a sigma phase in the nanostructured ferritic alloy at the surface is less than about 5 volume percent. The method generally includes the steps of milling, thermo-mechanically consolidating, annealing, and then cooling at a rate that hinders the formation of chi and sigma phases in the nanostructured ferritic alloy at the surface.

Abstract: A copper alloy according to the present invention includes 17 mass % to 34 mass % of Zn, 0.02 mass % to 2.0 mass % of Sn, 1.5 mass % to 5 mass % of Ni, and a balance consisting of Cu and unavoidable impurities, in which relationships of 12?f1=[Zn]+5×[Sn]?2×[Ni]?30, 10?[Zn]?0.3×[Sn]?2×[Ni]?28, 10?f3={f1×(32?f1)×[Ni]}1/2?33, 1.2?0.7×[Ni]+[Sn]?4, and 1.4?[Ni]/[Sn]?90 are satisfied, conductivity is 13% IACS to 25% IACS, a ratio of an ? phase is 99.5% or more by area ratio or an area ratio of a ? phase (?) % and an area ratio of a ? phase (?) % in an ? phase matrix satisfy a relationship of 0?2×(?)+(?)?0.7.

Abstract: A copper alloy sheet according to one aspect contains 28.0 mass % to 35.0 mass % of Zn, 0.15 mass % to 0.75 mass % of Sn, 0.005 mass % to 0.05 mass % of P, and a balance consisting of Cu and unavoidable impurities, in which relationships of 44?[Zn]+20×[Sn]?37 and 32?[Zn]+9×([Sn]?0.25)1/2?37 are satisfied. The copper alloy sheet according to the aspect is manufactured by a manufacturing process including a finish cold-rolling process of cold-rolling a copper alloy material, an average grain size of the copper alloy material is 2.0 ?m to 7.0 ?m, and a sum of an area ratio of a ? phase and an area ratio of a ? phase in a metallographic structure of the copper alloy material is 0% to 0.9%.

Abstract: An aspect of the copper alloy sheet contains 5.0 mass % to 12.0 mass % of Zn, 1.1 mass % to 2.5 mass % of Sn, 0.01 mass % to 0.09 mass % of P and 0.6 mass % to 1.5 mass % of Ni with a remainder of Cu and inevitable impurities, and satisfies a relationship of 20?[Zn]+7×[Sn]+15×[P]+4.5×[Ni]?32. The aspect of the copper alloy sheet is manufactured using a manufacturing process including a cold finishing rolling process in which a copper alloy material is cold-rolled, the average crystal grain diameter of the copper alloy material is 1.2 ?m to 5.0 ?m, round or oval precipitates are present in the copper alloy material, the average grain diameter of the precipitates is 4.0 nm to 25.0 nm or a proportion of precipitates having a grain diameter of 4.0 nm to 25.0 nm in the precipitates is 70 % or more.

Abstract: Provided is an Ni-base alloy excellent in strength, ductility and other properties through the resolution of micro-segregation. Also provided is a process for manufacturing an Ni-base alloy containing by mass C:0.15% or less, Si:1% or less, Mn:1% or less, Cr:10 to 24%, Mo+(1/2)W (where Mo may be contained either alone or as an essential component):5 to 17%, Al:0.5 to 1.8%, Ti:1 to 2.5%, Mg:0.02% or less, and either B:0.02% or less and/or Zr:0.2% or less at an Al/(Al+0.56Ti) ratio of 0.45 to 0.70 with the balance consisting of Ni and impurities, which comprises subjecting, at least one time, an Ni-base alloy material which is prepared by vacuum melting and has the above composition to homogenization heat treatment at 1160 to 1220° C. for 1 to 100 hours. The Mo segregation ratio of the alloy is controlled to 1 to 1.17 by the homogenization heat treatment.

Abstract: A method of processing a workpiece to inhibit precipitation of intermetallic compounds includes at least one of thermomechanically processing and cooling a workpiece including an austenitic alloy. During the at least one of thermomechanically working and cooling the workpiece, the austenitic alloy is at temperatures in a temperature range spanning a temperature just less than a calculated sigma solvus temperature of the austenitic alloy down to a cooling temperature for a time no greater than a critical cooling time.

Abstract: [Problem to be Solved] A Ni-based alloy product consisting of, by mass percent, C: 0.03 to 0.10%, Si: 0.05 to 1.0%, Mn: 0.1 to 1.5%, Sol.Al: 0.0005 to 0.04%, Fe: 20 to 30%, Cr: not less than 21.0% and less than 25.0%, W: exceeding 6.0% and not more than 9.0%, Ti: 0.05 to 0.2%, Nb: 0.05 to 0.35%, and B: 0.0005 to 0.006%, the balance being Ni and impurities, the impurities being P: 0.03% or less, S: 0.01% or less, N: less than 0.010%, Mo: less than 0.5%, and Co: 0.8% or less, wherein a value of effective B (Beff) defined by the formula, Beff (%)=B?(11/14)×N+(11/48)×Ti, is 0.0050 to 0.0300%, and the rupture elongation in a tensile test at 700° C. and at a strain rate of 10?6/sec is 20% or more. This alloy may contain one or more kinds of Cu, Ta, Zr, Mg, Ca, REM, and Pd.

Abstract: An austenitic heat resistant alloy, which comprises by mass percent, C: over 0.02 to 0.15%, Si?2%, Mn?3%, P?0.03%, S?0.01%, Cr: 28 to 38%, Ni: over 40 to 60%, Co?20% (including 0%), W over 3 to 15%, Ti: 0.05 to 1.0%, Zr: 0.005 to 0.2%, Al: 0.01 to 0.3%, N?0.02%, and Mo<0.5%, with the balance being Fe and impurities, in which the following formulas (1) to (3) are satisfied has high creep rupture strength and high toughness after a long period of use at a high temperature, and further it is excellent in hot workability. This austenitic heat resistant alloy may contain a specific amount of one or more elements selected from Nb, V, Hf, B, Mg, Ca, Y, La, Ce, Nd, Sc, Ta, Re, Ir, Pd, Pt and Ag. P?3/{200(Ti+8.5×Zr)} . . . (1), 1.35×Cr?Ni+Co?1.85×Cr . . . (2), Al?1.5×Zr . . . (3).

Abstract: An ?+? type hot-rolled titanium alloy sheet, wherein: (a) ND represents the normal direction of a hot-rolled sheet; RD represents the hot rolling direction; TD represents the hot rolling width direction; ? represents the angle formed between the orientation of c axis and the ND; ? represents the angle formed between a plane including the orientation of the c axis and the ND, and a plane including the ND and the TD; (b1) XND represents the highest (0002) relative intensity of the X-ray reflection caused by crystal grains when ? is from 0° to 30° and ? is within the entire circumference; (b2) XTD represents the highest (0002) relative intensity of the X-ray reflection caused by crystal grains when ? is from 80° to 100° and ? is ±10°. (c) The ?+? type titanium alloy sheet has a value for XTD/TND of at least 5.0.

Abstract: A high-strength ?+? type hot-rolled titanium alloy sheet containing 0.8 to 1.5 mass % Fe, 4.8 to 5.5 mass % Al, 0.030 mass % N, O and N, wherein cracks are prevented from spreading, wherein: (a) ND represents normal direction of a hot-rolled sheet; RD represents hot rolling direction; TD represents hot rolling width direction; ? represents the angle formed between c axis and ND; ? represents angle formed between plane including c axis and ND, and a plane including ND and TD; (b1) XND represents highest (0002) relative intensity of X-ray reflection by grains when ? is from 0° to 30°; (b2) XTD represents the highest (0002) relative intensity of the X-ray reflection caused by grains when ? is from 80° to 100° and ? is ±10°. (c) The high-strength ?+? type hot-rolled titanium alloy sheet has a value for XTD/XND of at least 4.0. Q(%)=[O]+2.77·[N].

Abstract: A high strength corrosion resistant tubing comprises about 35 to about 55% Ni, about 12 to about 25% Cr, about 0.5 to about 5% Mo, up to about 3% Cu, about 2.1 to about 4.5% Nb, about 0.5 to about 3% Ti, about 0.05 to about 1.0% Al, about 0.005 to about 0.04% C, balance Fe plus incidental impurities and deoxidizers. The composition also satisfies the equation: (Nb?7.75 C)/(Al+Ti)=about 0.5 to about 9. A process for manufacturing the tubing includes: extruding the alloy to form a tubing; cold working the extruded tubing; annealing the cold worked tubing; and applying at least one age hardening step to the annealed tubing. Another process includes extruding the alloy at a temperature of about 2050° F. or less; annealing the extruded tubing; and applying at least one age hardening step to the annealed tubing.

Abstract: An austenitic heat resistant alloy, which comprises by mass percent, C: over 0.02 to 0.15%, Si?2%, Mn?3%, P?0.03%, S?0.01%, Cr: 28 to 38%, Ni: over 40 to 60%, Co?20% (including 0%), W over 3 to 15%, Ti: 0.05 to 1.0%, Zr: 0.005 to 0.2%, Al: 0.01 to 0.3%, N?0.02%, and Mo<0.5%, with the balance being Fe and impurities, in which the following formulas (1) to (3) are satisfied has high creep rupture strength and high toughness after a long period of use at a high temperature, and further it is excellent in hot workability. This austenitic heat resistant alloy may contain a specific amount of one or more elements selected from Nb, V, Hf, B, Mg, Ca, Y, La, Ce, Nd, Sc, Ta, Re, Ir, Pd, Pt and Ag. P?3/{200(Ti+8.5×Zr)}??(1), 1.35×Cr?Ni+Co?1.85×Cr??(2), Al?1.5×Zr??(3).

Abstract: A method of producing a copper alloy wire rod, containing: a casting step for obtaining an ingot by pouring molten copper of a precipitation strengthening copper alloy into a belt-&-wheel-type or twin-belt-type movable mold; and a rolling step for rolling the ingot obtained by the casting step, which steps are continuously performed, wherein an intermediate material of the copper alloy wire rod in the mid course of the rolling step or immediately after the rolling step is quenched.

Abstract: The present invention provides a magnesium alloy material excellent in high mechanical characteristics without using special manufacturing facilities or processes and a method for manufacturing the magnesium alloy material. The magnesium alloy material is an Mg—Zn—RE alloy containing Zn as an essential component, at least one of Gd, Tb, and Tm as RE, and the rest including Mg and unavoidable impurities and contains a needle-like precipitate or a board-like precipitate (lengthy precipitate: X-phase=?-phase, ??-phase, and ?1-phase).

Abstract: A copper alloy material suitable for materials for electronic and electrical equipments such as movable connectors having excellent bending workability and being able to show high electrical conductivity was achieved by a Cu—Co—Si alloy material containing 1.5 to 2.5 wt % of Co and 0.3 to 0.7 wt % of Si, having a Co/Si element ratio of 3.5 to 5.0, containing 3,000 to 150,000 second phase particles per mm2 having diameters of from 0.20 ?m or more to less than 1.00 ?m, having a grain size of 10 ?m or less, an electrical conductivity of 60% IACS or more, and good bending workability. The above alloy material contains 10 to 1,000 second phase particles per mm2 having diameters of from 1.00 to 5.00 ?m, the 0.2% yield strength may be 600 MPa or more, the temperature of hot heating performed after casting and before solution treatment is a temperature that is 45° C. or more higher than the solution treatment temperature selected below, the cooling rate from the temperature at the start of hot rolling to 600° C.

Abstract: [Problem to be Solved] A Ni-based alloy product consisting of, by mass percent, C: 0.03 to 0.10%, Si: 0.05 to 1.0%, Mn: 0.1 to 1.5%, Sol.Al: 0.0005 to 0.04%, Fe: 20 to 30%, Cr: not less than 21.0% and less than 25.0%, W: exceeding 6.0% and not more than 9.0%, Ti: 0.05 to 0.2%, Nb: 0.05 to 0.35%, and B: 0.0005 to 0.006%, the balance being Ni and impurities, the impurities being P: 0.03% or less, S: 0.01% or less, N: less than 0.010%, Mo: less than 0.5%, and Co: 0.8% or less, wherein a value of effective B (Beff) defined by the formula, Beff (%)=B?(11/14)×N+(11/48)×Ti, is 0.0050 to 0.0300%, and the rupture elongation in a tensile test at 700° C. and at a strain rate of 10?6/sec is 20% or more. This alloy may contain one or more kinds of Cu, Ta, Zr, Mg, Ca, REM, and Pd.

Abstract: A copper alloy sheet has a chemical composition comprising 0.1 to 5 wt % of nickel, 0.1 to 5 wt % of tin, 0.01 to 0.5 wt % of phosphorus and the balance being copper and unavoidable impurities, and has a crystal orientation satisfying 2.9?(f{220}+f{311}+f{420})/(0.27·f{220}+0.49·f{311}+0.49·f{420})?4.0, assuming that the degree of orientation of a {hkl} crystal plane measured by the powder X-ray diffraction method on the rolled surface of the copper alloy sheet is f{hkl}.

Abstract: A method for manufacturing a blank part in Ni-base superalloy, wherein an alloy is prepared and heat treatments are conducted characterized in that: the said superalloy contains at least a total of 2.5% of Nb and Ta; heat treatment is conducted comprising a plurality of steps: a first step at between 850 and 1000° C. held for at least 20 minutes to precipitate the ? phase at the grain boundaries; a second step held at a temperature higher than the temperature of the first step allowing partial dissolution of the ? phase obtained at the first step; ageing treatment comprising a third step and optionally one or more additional steps at a temperature below the temperature of the first step and allowing precipitation of the hardening phases ?? and ??. Part thus obtained.

Abstract: In a high-strength and high-electrical conductivity copper alloy rolled sheet, 0.14 to 0.34 mass % of Co, 0.046 to 0.098 mass % of P, 0.005 to 1.4 mass % of Sn are contained, [Co] mass % representing a Co content and [P] mass % representing a P content satisfy the relationship of 3.0?([Co]?0.007)/([P]?0.009)?5.9, a total cold rolling ratio is equal to or greater than 70%, a recrystallization ratio is equal to or less than 45% a an average grain size of recrystallized grains is in the range of 0.7 to 7 ?m, an average grain diameter of precipitates is in the range of 2.0 to 11 nm, and an average grain size of fine crystals is in the range of 0.3 to 4 ?m. By the precipitates of Co and P, the solid solution of Sn, and fine crystals, the strength, conductivity and ductility of the copper alloy rolled sheet are improved.

Abstract: A high-strength and high-electrical conductivity copper alloy rolled sheet has an alloy composition containing 0.14 to 0.34 mass % of Co, 0.046 to 0.098 mass % of P, 0.005 to 1.4 mass % of Sn and the balance including Cu and inevitable impurities, wherein [Co] mass % representing a Co content and [P] mass % representing a P content satisfy the relationship of 3.0?([Co]?0.007)/([P]?0.009)?5.9. In a metal structure, precipitates are formed, the shape of the precipitates is substantially circular or elliptical, the precipitates have an average grain diameter of 1.5 to 9.0 nm, or 90% or more of all the precipitates have a diameter of 15 nm or less to be fine precipitates, and the precipitates are uniformly dispersed. With the precipitation of the fine precipitates of Co and P and the solid-solution of Sn, the strength, conductivity and heat resistance are improved and a reduction in costs is realized.

Abstract: A copper alloy material, containing Ni 1.8 to 5.0 mass % and Si 0.3 to 1.7 mass %, at a ratio of contents of Ni and Si, Ni/Si, of 3.0 to 6.0, and having a content of S of less than 0.005 mass %, with the balance of being Cu and inevitable impurities, wherein the copper alloy material satisfies formulae (1) to (4): 130×C+300?TS?130×C+650??(1) 0.001?d?0.020??(2) W?150??(3) 10?L?800??(4) wherein TS represents a tensile strength (MPa) of the copper alloy material in a direction parallel to rolling; C represents the content (mass %) of Ni in the copper alloy material; d represents an average grain diameter (mm) of the copper alloy material; W represents a width (nm) of a precipitate free zone; and L represents a particle diameter (nm) of a compound on a grain boundary.

Abstract: A method for controlling variations of Al—Ti—C alloy crystal grain refinement ability through controlling a compression ratio of sectional area of Al—Ti—C alloy including: A. establishing a relationship between variations of refinement ability of Al—Ti—C alloy crystal grain and parameters of press process of the Al—Ti—C alloy; setting the parameters of press process and controlling the variation of the refinement ability of the Al—Ti—C alloy crystal grain through controlling a value of the compression ratio.

Abstract: Provided is an Ni-base alloy excellent in strength, ductility and other properties through the resolution of micro-segregation. Also provided is a process for manufacturing an Ni-base alloy containing by mass C: 0.15% or less, Si: 1% or less, Mn: 1% or less, Cr: 10 to 24%, Mo+(½)W (where Mo may be contained either alone or as an essential component): 5 to 17%, Al: 0.5 to 1.8%, Ti: 1 to 2.5%, Mg: 0.02% or less, and either B: 0.02% or less and/or Zr: 0.2% or less at an Al/(Al+0.56Ti) ratio of 0.45 to 0.70 with the balance consisting of Ni and impurities, which comprises subjecting, at least one time, an Ni-base alloy material which is prepared by vacuum melting and has the above composition to homogenization heat treatment at 1160 to 1220° C. for 1 to 100 hours. The Mo segregation ratio of the alloy is controlled to 1 to 1.17 by the homogenization heat treatment.

Abstract: A high strength titanium copper alloy consists of Ti at 2.0% by mass or more to 3.5% by mass or less; the balance of copper and inevitable impurities; an average grain size of 20 ?m or less; and a 0.2% proof stress expressed by “b” of 800 N/mm2 or more. The alloy further comprises a bending radius ratio (bending radius/sheet thickness) not causing cracking as expressed by “a” by a W-bending test in a transverse direction to a rolling direction, wherein “a” and “b” satisfy a?0.

Abstract: The present invention provides a magnesium alloy material excellent in mechanical properties without using specific manufacturing facilities and processes and a method of manufacturing the same. The magnesium alloy material is an Mg—Zn—RE alloy containing, as an essential component, Zn and at least one of Gd, Tb, and Tm as RE, and of the rest including Mg and unavoidable impurities, and has stacking faults of a thickened two-atomic layer of Zn and RE in the alloy structure of the Mg—Zn—RE alloy. A method of manufacturing a magnesium alloy material involves a casting step, a solution treatment step, and a heat treatment step and the heat treatment step is carried out in a condition satisfying ?14.58 [ln(x)]+532.32<y<?54.164 [ln(x)]+674.05 and 0<x?2, wherein y denotes the heat treatment temperature (K) and x denotes the heat treatment time (h).

Abstract: A manganese alloy sputtering target characterized in that oxygen is 1000 ppm or less, sulfur is 200 ppm or less and a forged texture is provided, and a method for producing a forged manganese alloy target stably by eliminating the drawbacks of manganese alloy that it is susceptible to cracking and has a low rupture strength. A manganese alloy sputtering target which can form a thin film exhibiting high characteristics and high corrosion resistance while suppressing generation of nodules or particles is thereby obtained.

Abstract: A copper base rolled alloy has a copper base alloy composition containing 0.05 percent by mass or more, and 10 percent by mass or less of at least one type of element selected from Be, Mg, Al, Si, P, Ti, Cr, Mn, Fe, Co, Ni, Zr, and Sn, wherein the X-ray diffraction intensity ratio I(111)/I(200) of (hkl)plane measured with respect to a rolled surface is 2.0 or more.

Abstract: The present invention provides Cu-base amorphous alloys comprising an amorphous phase of 90% or more by volume fraction. The amorphous phase has a composition represented by the formula: Cu100-a-b(Zr+Hf)aTib or Cu100-a-b-c-d(Zr+Hf)aTibMcTd, wherein M is one or more elements selected from the group consisting of Fe, Cr, Mn, Ni, Co, Nb, Mo, W, Sn, Al, Ta and rare earth elements, T is one or more elements selected from the group consisting of Ag, Pd, Pt and Au, and a, b, c and d are atomic percentages falling within the following ranges: 5<a?55, 0?b?45, 30<a+b?60, 0.5?c?5, 0?d?10. The Cu-base amorphous alloy has a high glass-forming ability as well as excellent mechanical properties and formability, and can be formed as a rod or plate material with a diameter or thickness of 1 mm or more and an amorphous phase of 90% or more by volume fraction, through a metal mold casting process.

Abstract: The present invention provides a magnesium alloy material excellent in high mechanical characteristics without using special manufacturing facilities or processes and a method for manufacturing the magnesium alloy material. The magnesium alloy material is an Mg—Zn—RE alloy containing Zn as an essential component, at least one of Gd, Tb, and Tm as RE, and the rest including Mg and unavoidable impurities and contains a needle-like precipitate or a board-like precipitate (lengthy precipitate: X-phase=?-phase, ??-phase, and ?1-phase).

Abstract: A Ni—Fe—Cr alloy having high strength, ductility and corrosion resistance especially for use in deep-drilled, corrosive oil and gas well environments, as well as for marine environments. The alloy comprises in weight %: 35-55% Ni, 12-25% Cr, 0.5-5% Mo, up to 3% Cu, 2.1-4.5% Nb, 0.5-3% Ti, up to 0.7% Al, 0.005-0.04% C, balance Fe plus incidental impurities and deoxidizers. The alloy must also satisfy the ratio of (Nb?7.75 C)/(Al+Ti)=0.5-9 in order to obtain the desired high strength by the formation of ?? and ?? phases. The alloy has a minimum of 1% by weight ?? phase dispersed in its matrix for strength purposes and a total weight percent of ??+?? phases being between 10 and 30.

Abstract: Provided is a high-strength and high-toughness magnesium alloy which has practical level of both the strength and the toughness for expanded applications of the magnesium alloys, and is a method for manufacturing thereof. The high-strength and high-toughness magnesium alloy of the present invention contains: a atom % in total of at least one metal of Cu, Ni, and Co; and b atom % in total of at least one element selected from the group consisting of Y, Dy, Er, Ho, Gd, Tb, and Tm, while a and b satisfying the following formulae (1) to (3), 0.2?a?10??(1) 0.2?b?10??(2) 2/3a?2/3<b.

Abstract: A Fe—Ni based permalloy comprises Ni: 30-85 wt %, C: not more than 0.015 wt %, Si: not more than 1.0 wt %, Nin: not more than 1.0 wt %, P: not more than 0.01 wt %, S: not more than 0.005 wt %, O: not more than 0.0060 wt %, Al: not more than 0.02 wt % and, if necessary, not more than 15 wt % of at least one selected from the group consisting of Mo, Cu, Co and Nb within a range of not more than 20 wt % in total.

Abstract: A method for heat treating titanium-alloy articles in a vacuum furnace includes a step of first determining, for a first set of titanium articles in a first vacuum furnace and for a first set of heat treatment conditions, a minimum surface area of the first set of titanium articles associated with an acceptable alpha case formation for the first set of titanium articles. There is a second determining, for a second set of titanium articles in a second vacuum furnace and for a second set of heat treatment conditions, of a minimum surface area of a second set of titanium articles associated with an acceptable alpha case formation for the second set of titanium articles, responsive to the value of the minimum surface area of the first set of titanium articles.

Abstract: Dual phase steel sheet is made using a time/temperature cycle including a soak at about 1340-1425F and a hold at 850-920F, where the steel has the composition in weight percent, carbon: 0.02-0.20; aluminum: 0.010-0.150; titanium: 0.01 max; silicon: 0.5 max; phosphorous: 0.060 max; sulfur: 0.030 max; manganese: 1.5-2.40; chromium: 0.03-1.50; molybdenum: 0.03-1.50; with the provisos that the amounts of manganese, chromium and molybdenum have the relationship: Mn+6Cr+10Mo)=at least 3.5%. The sheet is preferably in the form of a strip treated in a continuous galvanizing or galvannealing line, and the product is predominantly ferrite and martensite.

Abstract: This self-compensating spiral spring for a mechanical balance-spiral spring oscillator for a watch or clock movement or other precision instrument, made of an Nb—Hf paramagnetic alloy possessing a thermal coefficient of Young's modulus (TCE), such that it enables the following expression to be substantially equal to zero: 1 E ⁢ ⅆ E ⅆ T + 3 ⁢ α s - 2 ⁢ α b where: E: Young's modulus of the spiral spring of the oscillator; 1 E ⁢ ⅆ E ⅆ T = T ⁢   ⁢ C ⁢   ⁢ E

Abstract: A self-compensating spring for a balance-spring for a balance-spring/balance assembly of a mechanical oscillator of a horological movement or of any other precision instrument, made of a paramagnetic Nb--Zr alloy containing between 5% and 25% by weight of Zr, obtained by cold rolling or cold drawing, and having a Young's modulus whose temperature coefficient (TCY) is adjustable by precipitation of Zr-rich phases in the Nb--Zr solid-solution. It contains at least 500 ppm by weight of an interstitial doping agent at least partly formed of oxygen.

Abstract: The present invention provides a process for efficiently dephosphorizing, dephosphorizing and decarbonizing, or desulfurizing, dephosphorizing and decarbonizing a hot metal in a converter. The amount of flux to be charged and the amount of bottom-blown gas are adjusted so that the bottom-blowing agitation power and the CaO/SiO.sub.2 ratio subsequent to the treatment become at least 0.1 kW/ton and from 0.7 to 2.5, respectively and the hot metal temperature at the treatment end point becomes from 1,200.degree. to 1,450.degree. C. Furthermore, the operation of the process is controlled so that the sum of a T.Fe concentration and a MnO concentration in the slag subsequent to the treatment becomes from 10 to 35% by weight by adjusting the top-blown oxygen feed rate, the flow rate of bottom-blown gas or the top-blowing lance height.

Abstract: A hydrogen absorbing alloy represented by the general formula R.sub.1-x A.sub.x (Ni.sub.5-y B.sub.y).sub.z wherein R is Mm (misch metal) or La, A is at least one element selected from the group consisting of Ce, Nd, Pr, Sm and Y, B is at least one element selected from the group consisting of Al, Sn, V, Cr, Mn, Fe, Co and Cu, 0.ltoreq.x.ltoreq.0.5, 0<y.ltoreq.1.0 and 0.8.ltoreq.z.ltoreq.1.2. The alloy is prepared by subjecting an alloy material of the above composition to a heat treatment so that when the plateau region of the resulting hydrogen absorbing alloy is expressed by a normal cumulative distribution function wherein the hydrogen content of the alloy is taken as frequency and the logarithm of the equilibrium hydrogen pressure of the alloy as a random variable, the alloy is at least 0.04 to up to 0.10 in standard deviation .sigma..

Abstract: A method of manufacturing a titanium alloy magnetic disk substrate comprising (a) cold-rolling an alloy plate at a rolling ratio of no less than 30%, the alloy plate comprising 0.5 wt. % to 1.0 wt. % of Mo and containing oxygen, nitrogen and carbon in amounts such that O+2N+0.75C is from 0.03 wt. % to 0.5 wt. % of the titanium alloy, and the balance being Ti, wherein O is the wt. % of oxygen, N is the wt. % of nitrogen and C is the wt. % of C to form a magnetic disk substrate material and then (b) thermal-flattening the magnetic substrate material from step (a) under a condition defined as follows:500.ltoreq.T.ltoreq.-(150/11).multidot.t+7,850/11 1.ltoreq.twhere T represents a thermal-flattening temperature in .degree.C., and t represents a thermal-flattening time in hours.

Abstract: A unique hardenable gold based alloy, especially a 14 karat gold alloy containing gold, silver, copper, zinc, cobalt and an alternative alloy additionally containing iridium. The alloy has a fine grained structure, a lower hardness in the soft condition, a nice yellow color and a capability to be hardened to an exceptional hardness value. The alloy contains approximately 58.3% gold (Au), between about 10% to about 14% silver (Ag), between about 2.5% to about 3.0% zinc (Zn), between about 0.2% to about 1.0% cobalt (Co) and the balance of the alloy being copper (Cu) with the special provision that the ratio of the weight percent amounts of copper to, the sum of the silver and two (2) times the zinc amount, [Cu/(Ag+2Zn)], has a value of between about 1.3 to about 2.5. The copper to silver weight percent ratio [Cu/Ag] of between about 2.0 to about 3.8, in combination with the ratio of copper to, silver+2.times.

Abstract: A work-strengthenable alloy which includes a gamma prime phase gamma prime particles comprising the following elements in percent by weight:______________________________________ molybdenum 6-16 chromium 13-25 iron 0-23 nickel 10-55 carbon 0-0.05 boron 0-0.05 cobalt balance, at least 20, ______________________________________said alloy also containing one or more elements which form gamma prime phase with nickel,the electron vacancy number, N.sub.v, of the alloy being defined byN.sub.v =0.61 Ni+1.71 Co+2.66 Fe+4.66 Cr+566 Mowherein the respective chemical symbols represent the effective atomic fractions of the respective elements present in the alloy, said value not exceeding the valueN.sub.v =2.82-0.017 W.sub.Fe,where W.sub.Fe is the percent by weight of iron in the alloy for those alloys containing no iron or less than 13 percent by weight iron and W.sub.Fe is 13 for the alloys containing from 13-23 percent by weight iron. The alloys are formed by a melt; and heating the alloy at a temperature of from 600.

Abstract: An alloy essentially consisting of 35-40% Ni, 5-14% Cr and balance Fe and unavoidable impurities has excellent alternating current magnetic characteristics and good direct current magnetic characteristics.