Abstract: An Al-based alloy represented by the general formula Al.sub.bal Ti.sub.a M.sub.b and Al.sub.bal Ti.sub.a M.sub.b Q.sub.c wherein M represents at least one element selected from among V, Cr, Mn, Co, Cu, Y, Zr, Nb, Mo, Hf, Ta and W; Q represents at least one element selected from Mg and Si; and a, b and c are, in percentages by weight, 7.ltoreq.a.ltoreq.20, 0.2.ltoreq.b.ltoreq.20 and 0.1.ltoreq.c.ltoreq.5. A compacted and consolidated material is produced by melting a material having the above alloy composition, rapidly solidifying the melt into powder or flakes; compacting the resultant powder or flakes; and subjecting the compacted powder or flakes to press forming and consolidating by a conventional plastic working. The aluminum-based alloy and the compacted and consolidated material thereof have a high strength, a good ductility and an excellent strength at high temperatures.

Abstract: A cast magnetic refrigerant having a composition represented byLn.sub.a A.sub.b M.sub.cwherein Ln is at least one element selected from the group consisting of Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm and Yb; A is any one of elements of Al and Ga; M is at least one element selected from the group consisting of Fe, Co, Ni, Cu and Ag; each of a, b and c is atomic %, with the proviso that a+b+c=100 atomic %, 20 atomic % .ltoreq.a.ltoreq.80 atomic %, 5 atomic % .ltoreq.b .ltoreq.50 atomic %, 5 atomic % .ltoreq.c.ltoreq.60 atomic %, and having an amorphous structure with a difference .DELTA.T of 10K or more between a glass transition temperature Tg and a crystallization temperature Tx.

Abstract: An aluminum-alloy, which is wear-resistant and does not wear greatly the opposed cast iron or steel, and which can be warm worked. The alloyings the following composition and structure. Composition: Al.sub.a Si.sub.b M.sub.c X.sub.d T.sub.e (where M is at least one element selected from the group consisting of Fe, Co and. Ni; X is at least one element selected from the group consisting of Y, Ce, La and Mm (misch metal); Y is at least one element selected from the group consisting of Mn, Cr, V, Ti, Mo, Zr, W, Ta and Hf; a=50-85 atomic %, b=10-49 atomic %, c=0.5-10 atomic %, d=0.5-10 atomic %, e=0-10 atomic %, and a+b+c+d+e=100 atomic %. Structure: super-saturated face-centered cubic crystals and fine Si precipitates.

Abstract: The present invention provides a compacted and consolidated aluminum-based alloy material which has been obtained by compacting and consolidating a rapidly solidified material having a composition represented by the general formula: Al.sub.a Ni.sub.b X.sub.c wherein X is one or two elements selected from Zr and Ti and a, b and c are, in atomic percentages, 87.5.ltoreq.a.ltoreq.92.5, 5 .ltoreq.b.ltoreq.10, and 0.5.ltoreq.c.ltoreq.5; and a production process comprising melting a material of the above composition; quenching and solidifying the resultant molten material into powder or flakes; compacting, compressing, forming and consolidating the powder or flakes by conventional plastic working. The consolidated material of the present invention has. elongation (toughness) sufficient to withstand secondary working, even when secondary working is applied. Moreover, the material allows the secondary working to be performed easily while retaining the excellent properties of its raw material.

Abstract: Al.sub.100-a-b-c X.sub.a M.sub.b T.sub.c, in which X is Y (yttrium) and/or rare-earth element(s), M is Fe, Co, and/or Ni, and T is Mn, Mo, Cr, Zr and/or V, and, a=0.5-5 atomic %, b=5-15 atomic %, and c=0.2-3.0 atomic %, and, further, X and M fall on and within the hatched region range of the appended FIG. 1, has a complex, amorphous-crystalline structure with an amorphous matrix containing the Al, X, M and T, and minority crystalline phase consisting of aluminum-alloy particles containing super-saturated X, M and T as solutes. The alloy has a high strength due to the dispersed crystalline particles.

Abstract: A high-strength rolled sheet of an aluminum alloy having a composition represented by the general formula Al.sub.bal Ni.sub.a X.sub.b, Al.sub.bal Ni.sub.a X.sub.b M.sub.c or Al.sub.bal Ni.sub.a X.sub.b M.sub.c Q.sub.d, wherein X represents at least one element selected from among La, Ce, Mm, Ti and Zr; M represents at least one element selected from among V, Cr, Mn, Fe, Co, Y, Nb, Mo, Hf, Ta and W; Q represents at least one element selected from among Mg, Si, Cu and Zn; and a, b, c and d are, in atomic percentages, 2.ltoreq.a.ltoreq.10, 0.1.ltoreq.b.ltoreq.3.ltoreq.0.1.ltoreq.c.ltoreq.2 and 0.01.ltoreq.d.ltoreq.2, wherein intermetallic compounds crystallized therefrom have a maximum particle size of 10 .mu.m or less. The rolled sheet can be easily produced by subjecting a melt of an alloy having the above-described composition to rolling simultaneously with cooling and solidification to provide a rolled sheet and has high strength and rigidity and excellent heat resistance and ductility.

Abstract: An aluminum-based alloy foil or thin aluminum-based alloy wire is produced from an amorphous material made by a quenching and solidifying process and having a composition represented by the general formula:Al.sub.a M.sub.b X.sub.cwherein M is one or more elements selected from a group consisting of V, Cr, Mn, Fe, Co, Ni, Cu, Zr, Ti, Mo, W, Ca, Li, Mg and Si; X is one or more elements selected from a group consisting of Y, Nb, Hf, Ta, La, Ce, Sm, Nd and Mm (misch metal); and a, b, and c are atomic percentages falling within the following range:50.ltoreq.a.ltoreq.950.5.ltoreq.b.ltoreq.35 and0.5.ltoreq.c.ltoreq.25Such foil or wire has a smooth surface and a very small and uniform foil thickness or wire diameter, contains at least 50% by volume of an amorphous phase, and has excellent strength and resistance to corrosion. The foil thickness and wire diameter are reduced in a rolling or drawing process at an elevated temperature over a short time period.

Abstract: A process for producing an amorphous alloy material characterized by imparting ductility to an amorphous alloy having a supercooled liquid region by giving a prescribed amount of strain at a prescribed strain rate to the alloy in the glass transition temperature region of the alloy. The amorphous alloy may be in the form of spherical or irregular-shaped powders or thin ribbons or in the form of primary consolidated shapes thereof or an amorphous alloy casting. The amount of strain and strain rate are preferably 50% or greater and 2.times.10.sup.-2 /sec or higher, respectively, and the worked amorphous alloy material is preferably allowed to cool in a furnace or spontaneously. Suitable examples of the amorphous alloy to be employed include Al-TM-Ln, Mg-TM-Ln, Zr-TM-Al and Hf-TM-Al alloys, wherein TM is a transition metal element and Ln is a rare earth metal element. The thus obtained amorphous alloy is greatly improved in the prevention of embrittlement in hot working peculiar to the alloy.

Abstract: A compacted and consolidated aluminum-based alloy material is obtained by compacting and consolidating a rapidly-solidified material having a composition represented by the general formula: Al.sub.a Ni.sub.b X.sub.c M.sub.d or Al.sub.a' Ni.sub.b X.sub.c M.sub.d Q.sub.e, where X is one or two elements selected from La and Ce or an Mm; M is Zr or Ti; Q is one or more elements selected from Mg, Si, Cu and Zn, and a, a', b, c, d and e are, in atomic percentages, 84.ltoreq.a.ltoreq.94.8, 82.ltoreq.a'.ltoreq.94.6, 5.ltoreq.b .ltoreq.10, 0.1.ltoreq.c.ltoreq.3, 0.1.ltoreq.d.ltoreq.3, and 0.2.ltoreq.e.ltoreq.2. According to the production process of the invention, powder or flakes obtained by rapidly solidifying are compacted, followed by compressing, forming and consolidating by conventional plastic working operations. The consolidated material has an elongation sufficient to withstand secondary working operations. Moreover, the material retains the excellent properties of its raw material as they are.

Abstract: A solidified amorphous alloy material is produced from a melt of its desired metal material. A melt feeding route is provided with a first-stage quenching zone. The melt is quenched to a predetermined temperature in the first-stage quenching zone. The thus-quenched melt is then introduced into a second-stage quenching and solidification zone, whereby the melt is cooled further and solidified into a solidified material having an amorphous phase.

Abstract: A process for producing an amorphous alloy forming material having at least 50% by volume of an amorphous phase which comprises a first-stage treatment in which an amorphous alloy is maintained in a temperature range below the glass transition temperature, a second-stage treatment in which the alloy is maintained in a temperature range in the supercooled liquid region for a prescribed period of time, and quenching of the alloy thus treated. The process improves the embrittlement peculiar to amorphous alloys subjected to thermal hysteresis for a long time and provides amorphous alloys having excellent strength, ductility and thermal plastic workability.

Abstract: An aluminum alloy powder for coating materials and a coating material containing the aluminum alloy powder. The aluminum alloy powder comprises an amorphous aluminum alloy consisting essentially of from 83 to 91% of Al, from 0.5 to 5% of Ca and from 8 to 12% of Ni, all in atom %, and comprising a leaf-shaped particle having a thickness of 0.3 to 3 .mu.m, a minor axis of from 10 to 150 .mu.m, a ratio of the minor axis to a major axis of from 1 to 3, and an aspect ratio which is the ratio of the minor axis to the thickness of from 3 to 100, wherein the aluminum alloy powder is contained in an amount of from 5 to 25 parts by weight based on 100 parts by weight of the total weight of (i) the coating material resin component and (ii) aluminum alloy powder, and the coating material resin component is selected from the group consisting of a water-based synthetic latex and a water-soluble resin. The aluminum alloy powder has a superior dispersibility in a resin in a coating material.

Abstract: The present invention provides an amorphous alloy having superior mechanical strength, corrosion resistance for formability, at a relatively low cost. The amorphous alloy is a composition represented by the general formula: Al.sub.100-x-y M.sub.x Ln.sub.y wherein M is at least one element selected from the group consisting of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zr, Nb, Mo, Hf, Ta and W; Ln is at least one element selected from the group consisting of Y, La, Ce, Nd, Sm, Gd, Tb, Dy, Ho and Yb or misch metal (Mm) which is a combination of rare earth elements; and x and y are, in atomic percentages: 0<x.ltoreq.55 and 30.ltoreq.y.ltoreq.90, preferably 0<x.ltoreq.40 and 35.ltoreq.y.ltoreq.80, and more preferably 5<x.ltoreq.40 and 35.ltoreq.y.ltoreq.70, with the proviso that 100-x-y.gtoreq.5 the alloy having at least 50% (by volume) of an amorphous phase.

Abstract: Disclosed is an amorphous alloy having superior processability which has a composition represented by the general formula:X.sub.a M.sub.b Al.sub.cwhereinX is at least one element of Zr and Hf;M is at least one element selected from the group consisting of Ni, Cu, Fe, Co and Mn; anda, b and c are, in atomic percentages:25.ltoreq.a.ltoreq.85, 5.ltoreq.b.ltoreq.70 and 0<c.ltoreq.35, preferably 35.ltoreq.a.ltoreq.75, 15.ltoreq.b.ltoreq.55 and 5.ltoreq.c .ltoreq.20 and more preferably 55.ltoreq.a.ltoreq.70, 15.ltoreq.b .ltoreq.35 and 5.ltoreq.c.ltoreq.20,the alloy being at least 50% (by volume) composed of an amorphous phase. Since the amorphous alloy is at least 50% by volume amorphous and can be present in a supercooled liquid state in a wide temperature range, it has a greatly superior processability together with high levels of strength, thermal resistance and corrosion resistance characteristic of amorphous alloys.