Abstract: A high-strength low-thermal-expansion alloy consisting of, by weight, 0.06 to 0.50% C, 25 to 65% in total of one or both of 65% or less Co and less than 30% Ni, and balance of Fe as a main component, other optional elements and unavoidable impurities, and having a primary phase of austenite phase and martensite phase induced by working. A wire is made from the alloy.

Abstract: A maraging steel containing the following: Ni 14-23 wt. %, Mo 4-13 wt. %, Al 1-3.5 wt. %, C.ltoreq.0.01 wt. %, remainder Fe and impurities resulting from the processing. The composition also preferably satisfies the following conditions:Ni+Mo=23-27 wt. %, inclusively;Ni+2.5.times.Mo+2.3.times.Al.gtoreq.38 wt. %.

Abstract: An aluminum fill process for sub-0.25 .mu.m technology integrated circuits that has a reflow temperature less than 400.degree. C. that has low alloy resistivity and excellent electromigration characteristics. The aluminum allow is composed of Al-1% Ge-1% Cu.

Abstract: A method of manufacturing a thick steel product of high strength and high toughness having excellent weldability with minimal variation of material properties, comprises heating a steel raw material to the temperature of Ac.sub.3 to 1350.degree. C., hot rolling and then cooling at the cooling rate of 10.degree. C./sec. or less. The steel raw material has the following composition:C: 0.001-0.25 wt %;Mn: 1.0-3.0 wt %;Ti: 0.005-0.20 wt %;Nb: 0.005-0.20 wt %;B: 0.0003-0.0050 wt %; andAl: 0.01-0.100 wt %balance substantially Fe and incidental impurities. The composition has a transformation start temperature (Bs) of 670.degree. C. or less. Since the steel product obtained by the method has no variation in physical properties regardless of variation in cooling rate, it is possible to supply steel products of high strength and high toughness which have uniform microstructure and properties along their thickness direction and are excellent in weldability.

Abstract: A high-strength thin plate, such as for IC lead frames, of an iron-nickel-cobalt alloy which is able to withstand repeated bending and is corrosion resistance and etchable, the alloy containing 27 to 30 wt. % N:, 5 to 18 wt. % Co, 0.10 to 3.0 wt. % Mn, 0.10 wt. % or less Si, 0.010 to 0.075 wt. % C, 0.001 to 0.014 wt. % N, less than 2.0 ppm H, 0.0040 wt. % or less S, 0.004 wt. % or less P, 0.0050 wt. % or less O, 0.01 to 0.06 wt. % Cr, 0.01 to 1.0 wt. % Mo and the balance being Fe and unavoidable impurities wherein 63.5 wt. %.ltoreq.2Ni+Co+Mn.ltoreq.65 wt. % for Co<10 wt. % and 69.5 wt. %.ltoreq.2Ni+Co+Mn.ltoreq.74.5 wt. % for Co>10 wt. %.

Abstract: A hydrogen-absorbing alloy electrode utilizes as an electrode material a hydrogen-absorbing alloy having selectively oriented crystals, which is expressed in terms of a specific maximum value obtained from analysis of powder X-ray diffractometry. This electrode, in which the hydrogen-absorbing alloy used is hardly pulverized upon repeated charge-discharge cycles and oxidation thereof is suppressed, gives metal hydride alkaline secondary batteries having excellent cycle characteristics. A method for evaluating hydogen-absorbing alloys for electrode comprises, utilizing the fact that there exists a clear relationship between specific parameters obtained by analyzing data based on the hydrogen-absorbing alloy to be evaluated and the characteristics of the electrode obtained therefrom, preparing and using analytical curves with the specific parameters.

Abstract: A method for estimating the inclusion content of a metal, the method involving three steps. The first step is to section the metal to create an exposed inner surface of the metal. The second step is to measure the reflectance of the exposed inner surface of the metal. The third step is to estimate the inclusion content of the metal from the reflectance. When a physical property of the metal, such as tensile strength, elongation or impact strength, is related to the inclusion content of the metal, then the physical property can be estimated from the reflectance of the exposed inner surface of the metal.

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 producing a high-strength cold-rolled steel sheet suitable for working uses which utilizes a steel material having the following composition: not more than 0.006 wt % of C, not more than 0.5 wt % of Si, not more than 2.0 wt % of Mn, and not less than 0.01 wt % but not more than 0.10 wt % of Ti, the Ti, C and N contents being determined to meet the condition of Ti>(48/12) C wt %+(48/14) N wt %, the steel also consisting essentially of not less than 0.0010 wt % but not more than 0.0100 wt % of Nb, not less than 0.0002 wt % but not more than 0.0020 wt % of B, not less than 0.03 wt % but not more than 0.20 wt % of P, not more than 0.03 wt % of S, not less than 0.010 wt % but not more than 0.100 wt % of Al, not more than 0.008 wt % of N, not more than 0.0045 wt % of O, and the balance substantially Fe and incidental inclusions. The steel material is cast and hot-rolled and then subjected to a cold rolling conducted at a sheet temperature not higher than 300.degree. C.

Abstract: The present invention relates to a process for the production of a stainless steel with a high elastic limit and a high breaking load, with a martensite ferrite two-phase structure exhibiting good malleability and good abrasion resistance, in which the steel of the following weight composition:carbon lower than 0.10%chromium between 16 and 20%nickel between 0.2 and 2%manganese lower than 2%copper lower than 2%the remainder being iron and impurities which are inherent in the method of production, is subjected to a quenching after being raised to a temperature of between 800.degree. to 1200.degree. C., and at least one cold rolling to a content of more than 15%.The present invention also relates to a stainless steel obtained by this process.

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: An Fe-Ni alloy sheet for a shadow mask, which consists essentially of:nickel: from 34 to 38 wt. %,silicon: from 0.01 to 0.15 wt. %,manganese: from 0.01 to 1.00 wt. %, andthe balance being iron and incidental impurities;the surface portion of the alloy sheet having a silicon (si) segregation rate, as expressed by the following formula, of up to 10%: ##EQU1## and the alloy sheet having a surface roughness which satisfies all the following formulae (1) to (3):0.3 .mu.m.ltoreq.Ra.ltoreq.0.8 .mu.m (1)where, Ra: center-line mean roughness;3.ltoreq.Rkr.ltoreq.