High strength and high rigidity aluminum-based alloy and production method therefor
First Claim
1. An aluminum-based alloy of high strength and high rigidity consisting essentially of a composition represented by the general formula Al100 -(a+b)Qa Mb ;
- wherein Q is at least one metal element selected from the group consisting of V, Mo, Fe, W, Nb, and Pd;
M is at least one metal element selected from the group consisting of Mn, Fe, Co, Ni, and Cu; and
a and b, which represent a composition ratio in atomic percentages, satisfy the relationships 1≦
a≦
8, 0<
b<
5, and 3≦
a+b≦
8;
said aluminum-based alloy having a metallographic structure comprising a quasi-crystalline phase, wherein the difference in the atomic radii between Q and M exceeds 0.01 Å
, and said alloy does not contain rare earths.
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Abstract
An aluminum-based alloy having the general formula Al100 -(a+b)Qa Mb (wherein Q is V, Mo, Fe, W, Nb, and/or Pd; M is Mn, Fe, Co, Ni, and/or Cu; and a and b, representing a composition ratio in atomic percentages, satisfy the relationships 1≦a≦8, 0<b<5, and 3≦a+b≦8) having a metallographic structure comprising a quasi-crystalline phase, wherein the difference in the atomic radii between Q and M exceeds 0.01 Å, and said alloy does not contain rare earths, possesses high strength and high rigidity. The aluminum-based alloy is useful as a structural material for aircraft, vehicles and ships, and for engine parts; as material for sashes, roofing materials, and exterior materials for use in construction; or as materials for use in marine equipment, nuclear reactors, and the like.
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Citations
11 Claims
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1. An aluminum-based alloy of high strength and high rigidity consisting essentially of a composition represented by the general formula Al100 -(a+b)Qa Mb ;
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wherein Q is at least one metal element selected from the group consisting of V, Mo, Fe, W, Nb, and Pd;
M is at least one metal element selected from the group consisting of Mn, Fe, Co, Ni, and Cu; and
a and b, which represent a composition ratio in atomic percentages, satisfy the relationships 1≦
a≦
8, 0<
b<
5, and 3≦
a+b≦
8;said aluminum-based alloy having a metallographic structure comprising a quasi-crystalline phase, wherein the difference in the atomic radii between Q and M exceeds 0.01 Å
, and said alloy does not contain rare earths. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification