Abstract: Disclosed herein is a process for forming an amorphous alloy material capable of showing glass transition, which comprises holding the material between frames arranged in combination; and heating the material at a temperature between its glass transition temperature (Tg) and its crystallization temperature (Tx) and, at the same time, producing a pressure difference between opposite sides of the material, whereby the material is brought into close contact against a forming mold disposed on one side of the material. As an alternative, the forming mold is brought into close contact against the amorphous material in a direction opposite to the pressing direction for the amorphous material. By the above processes, precision-formed products of amorphous alloys can be manufactured and supplied at low cost.

Abstract: A high-strength aluminum-based alloy consisting of a composition represented by the general formula: Al.sub.bal Q.sub.a M.sub.b X.sub.c, wherein Q is at least one element selected from the group consisting of Mn and Cr; M is at least one element selected from the group consisting of Co, Ni, and Cu; X is at least one of rare earth elements including Y, or Misch metal (Mm); and a, b and c are, in atomic percentages, 1.ltoreq.a.ltoreq.7, 0.5.ltoreq.b.ltoreq.5, and 0<c.ltoreq.5, the aluminum-based alloy containing quasicrystals in the structure thereof. The quasicrystals may be of an icosahedral phase (I phase), a decagonal phase (D phase), or a crystalline phase akin thereto and the structure may comprise the quasicrystalline phase and a phase formed of any one of an amorphous phase, aluminum, and a supersaturated aluminum solid solution or a composite (mixed phase) thereof.

Abstract: The present invention provides a sacrificial electrode material which consists of a single phase amorphous structure or a structure consisting of an amorphous phase and a crystalline solid solution phase and provides electrochemical corrosion protection to metallic articles exposed to an aqueous electrolytic solution. The electrode material is prepared by rapidly quenching a magnesium-based alloy material from the liquid phase or vapor phase thereof, the magnesium-based alloy material consisting the general formula: Mg.sub.bal X1.sub.a X2.sub.b or Mg.sub.bal X1.sub.a, wherein X1 is at least one element selected from the group consisting of Al, Zn, Ga, Ca and In; X2 is at least one element selected from the group consisting of Mm (misch metal), Y and rare earth metal elements; a and b are, in atomic percentages, 5.0.ltoreq.a.ltoreq.35.0 and 3.0.ltoreq.b.ltoreq.25.0, respectively.

Abstract: An amorphous magnesium alloy has a composition of Mg.sub.a M.sub.b X.sub.c (M is Zn and/or Ga, X is La, Ce, Mm (misch metal), Y, Nd, Pr, Sm and Gd), a is from 65 to 96.5 atomic %, b is from 3 to 30 atomic %, and c is from 0.2 to 8 atomic %). The magnesium alloy has a high specific strength and does not embrittle at room temperature.

Abstract: A high-strength magnesium-based alloy possessing a microcrystalline composition represented by the general formula: Mg.sub.a Al.sub.b M.sub.c or Mg.sub.a,Al.sub.b M.sub.c X.sub.d (wherein M stands for at least one element selected from the group consisting of Ga, Sr, and Ba, X stands for at least one element selected from the group consisting of Zn, Ce, Zr, and Ca, and a, a', b, c, and d stand for atomic percents respectively in the ranges of 78.ltoreq.a.ltoreq.94, 75.ltoreq.a'.ltoreq.94, 2.ltoreq.b.ltoreq.12, 1.ltoreq.c.ltoreq.10, and 0.1.ltoreq.d.ltoreq.3). This alloy can be advantageously produced by rapidly solidifying the melt of an alloy of the composition shown above by the liquid quenching method. It is useful as high-strength materials and highly refractory materials owing to its high hardness, strength, and heat-resistance. It is also useful as materials with high specific strength because of light weight and high strength.

Abstract: Disclosed herein is a process for forming an amorphous alloy material capable of showing glass transition, which comprises holding the material between frames arranged in combination; and heating the material at a temperature between its glass transition temperature (Tg) and its crystallization temperature (Tx) and, at the same time, producing a pressure difference between opposite sides of the material, whereby the material is brought into close contact against a forming mold disposed on one side of the material. As an alternative, the forming mold is brought into close contact against the amorphous material in a direction opposite to the pressing direction for the amorphous material. By the above processes, precision-formed products of amorphous alloys can be manufactured and supplied at low cost.

Abstract: The present invention provides a process comprising the steps of forming a cast amorphous alloy from an alloy which exhibits glass transition behavior, heating the amorphous alloy to a temperature between Tg and Tx while subjecting the alloy to drawing to obtain a wire and cooling the wire to (Tg-50 K) or lower. By this process, it is possible to produce an amorphous alloy wire at a low cost and provide an ultrafine wire having high strength and high corrosion resistance as well as flexibility. The amorphous alloy wire can be utilized as a reinforcing wire for a composite material, a variety of reinforcing members, a woven fabric and the like.

Abstract: A bulky amorphous magnesium alloy having heat-resistance and toughness is provided by setting the alloy composition as: Mg.sub.a M.sub.b Al.sub.c X.sub.d Z.sub.e (M is at least one element selected from the group consisting of La, Ce, Mm (misch metal) and Y, X is at least one element selected from the group consisting of Ni and Cu, and Z is at least one element selected from the group consisting of Mn, Zn, Zr, and Ti, and, a=70.about.90 at %, b=2.about.15 at %, c=1.about.9 at %, d=2.about.15 at %, e=0.1.about.8 at %, a+b+c+d+e=100 at %).

Abstract: Disclosed are high strength magnesium-based alloys consisting essentially of a composition represented by the general formula (I) Mg.sub.a M.sub.b X.sub.d, (II) Mg.sub.a Ln.sub.c X.sub.d or (III) Mg.sub.a M.sub.b Ln.sub.c X.sub.d, wherein M is at least one element selected from the group consisting of Ni, Cu, Al, Zn and Ca; Ln is at least one element selected from the group consisting of Y, La, Ce, Sm and Nd or a misch metal (Mm) which is a combination of rare earth elements; X is at least one element selected from the group consisting of Sr, Ba and Ga; and a, b, c and d are, in atomic percent, 55.ltoreq.a.ltoreq.95, 3.ltoreq.b.ltoreq.25, 1.ltoreq.c.ltoreq.15 and 0.5.ltoreq.d.ltoreq.30, the alloy being at least 50 percent by volume composed of an amorphous phase.

Abstract: Disclosed are high strength magnesium-based alloys consisting essentially of a composition represented by the general formula (I) Mg.sub.a M.sub.b X.sub.d, (II) Mg.sub.a Ln.sub.c X.sub.d or (III) Mg.sub.a M.sub.b Ln.sub.c X.sub.d, wherein M is at least one element selected from the group consisting of Ni, Cu, Al, Zn and Ca; Ln is at least one element selected from the group consisting of Y, La, Ce, Sm and Nd or a misch metal (Mm) which is a combination of rare earth elements; X is at least one element selected from the group consisting of Sr, Ba and Ga; and a, b, c and d are, in atomic percent, 55.ltoreq.a.ltoreq.95, 3.ltoreq.b.ltoreq.25, 1.ltoreq.c.ltoreq.15 and 0.5.ltoreq.d.ltoreq.30, the alloy being at least 50 percent by volume composed of an amorphous phase.