High strength, heat resistant aluminum alloys and method of preparing wrought article therefrom

A high strength, heat resistant aluminum alloy having a composition represented by the general formula:

• Al.sub.a M.sub.b Q.sub.c X.sub.e
• wherein:
• M is at least one metal element selected from the group consisting of Cu, Ni, Co and Fe;
• Q is at least one metal element selected from the group consisting Mn, Cr, Mo, W, V, Ti and Zr;
• X is at least one metal element selected from the group consisting of Nb, Ta, Hf and Y;
• and a, b, c and e are atomic percentages falling within the following ranges:
• 45.ltoreq.a.ltoreq.90, 5.ltoreq.b.ltoreq.40, 0<c.ltoreq.12 and 2.ltoreq.e.ltoreq.10, a
• said aluminum alloy containing at least 50% by volume of amorphous phase.

A method of preparing a wrought article from a high strength, heat resistant aluminum alloy by extrusion, press working or not-forging at temperatures within the range of the crystallization temperature of said aluminum alloy .+-.100.degree. C., said aluminum alloy having a composition represented by the general formula:

• Al.sub.a M.sub.b X.sub.d
• wherein:
• M is at least one metal element selected from the group consisting of Cu, Ni, Co and Fe;
• X is at least one metal element selected from the group consisting of Nb, Ta, Hf and Y;
• and a, b and d are atomic percentages falling within the following ranges:
• 45.ltoreq.a.ltoreq.90, 5.ltoreq.b.ltoreq.40 and 0.5.ltoreq.d.ltoreq.20,
• said aluminum alloy containing at least 50% by volume of amorphous phase.

A method of preparing a wrought article from a high strength, heat resistant aluminum alloy by extrusion, press working or hot-forging at temperatures within the range of the crystallization temperature of said aluminum alloy .+-.100.degree. C., said aluminum alloy having a composition represented by the general formula:

• Al.sub.a M.sub.b Q.sub.c X.sub.e
• wherein:
• M is at least one metal element selected from the group consisting of Cu, Ni, Co and Fe;
• Q is at least one metal element selected from the group consisting Mn, Cr, Mo, W, V, Ti and Zr;
• X is at least one metal element selected from the group consisting of Nb, Ta, Hf and Y;
• and
• a, b, c and e are atomic percentages falling within the following ranges:
• 45.ltoreq.a.ltoreq.90, 5.ltoreq.b.ltoreq.40, 0<c.ltoreq.12, and 2.ltoreq.e.ltoreq.10,
• said aluminum alloy containing at least 50% by volume of amorphous phase.

A high strength, heat resistant aluminum alloy having a composition represented by the general formula:

• Al.sub.a M.sub.b Q.sub.c X.sub.e
• wherein:
• M is at least one metal element selected from the group consisting of Cu, Ni, Co and Fe;
• Q is at least one metal element selected from the group consisting of Mn, Cr, Mo, W, Ti and Zr;
• X is at least one metal element selected from the group consisting of Nb, Ta, Hf and Y;
• and
• a, b, c and e are atomic percentages falling within the following ranges:
• 45.ltoreq.a.ltoreq.90, 5.ltoreq.b.ltoreq.40, 0<c.ltoreq.12 and 0.5.ltoreq.e.ltoreq.10,
• said aluminum alloy containing at least 50% by volume of amorphous phase.

A method of preparing a wrought article from a high strength, heat resistant aluminum alloy by extrusion, press working or hot-forging at temperatures within the range of the crystallization temperature of said aluminum alloy .+-.100.degree. C., said aluminum alloy having a composition represented by the general formula:

• Al.sub.a M.sub.b Q.sub.c X.sub.e
• wherein:
• M is at least one metal element selected from the group consisting of Cu, Ni, Co and Fe;
• Q is at least one metal element selected from the group consisting of Mn, Cr, Mo, W, Ti and Zr;
• X is at least one metal element selected from the group consisting of Nb, Ta, Hf and Y;
• and
• a, b, c and e are atomic percentages falling within the following ranges:
• 45.ltoreq.a.ltoreq.90, 5.ltoreq.b.ltoreq.40, 0<c.ltoreq.12, and 0.5.ltoreq.e.ltoreq.10,
• said aluminum alloy containing at least 50% by volume of amorphous phase.