Claims
- 1. A high-strength, abrasion-resistant aluminum alloy having a composition represented by the general formula Al.sub.a M.sub.b X.sub.c Z.sub.d Si.sub.e, wherein 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, La, Ce and Mm (mischmetal); Z is at least one element selected from the group consisting of Mn, Cr, V, Ti, Mo, Zr, W, Ta and Hf; and a, b, c, d and e are all expressed by atom percent and range from 50 to 89%, 0.5 to 10%, 0.5 to 10%, 0 to 10% and 10 and 49%, respectively, with the proviso that a+b+c+d+e=100 at %, said alloy containing fine Si precipitates having a particle size of from 0.1 to 5 .mu.m in an aluminum matrix and finely dispersed particles of intermetallic compounds having a particle size of from 0.01 to 5 .mu.m dispersed in the aluminum matrix.
- 2. An alloy as claimed in claim 1, wherein said alloy further contains not greater than 5 at % of at least one element selected from the group consisting of Cu, Mg, Zn and Li, based on 100 at % of said composition.
- 3. A method for processing a high-strength, abrasion-resistant aluminum alloy, which comprises warm-working at 300.degree.-500.degree. C. an aluminum alloy stock having a composition represented by the general formula Al.sub.a M.sub.b X.sub.c Z.sub.d Si.sub.e, wherein M is at least one element selected from the group consisting of Fe, Co and Ni; X is at least one element selected from Y, La, Ce and Mm (mischmetal); Z is at least one element selected from the group consisting of Mn, Cr, V, Ti, Mo, Zr, W, Ta and Hf; and a, b, c, d and e are all expressed by atom percent and range from 50 to 89%, 0.5 to 10%, 0.5 to 10%, 0 to 10% and 10 and 49% respectively, with the proviso that a+b+c+d+e=100 at %, said alloy containing fine Si precipitates having a particle size of from 0.1 to 5 .mu.m in an aluminum matrix and finely dispersed particles of intermetallic compounds having a particle size of from 0.01 to 5 .mu.m dispersed in the aluminum matrix.
- 4. A process as claimed in claim 3, wherein said composition further contains not greater than 5 at % of at least one element selected from the group consisting of Cu, Mg, Zn and Li, based on 100 at % of said composition.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3-213790 |
Aug 1991 |
JPX |
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Parent Case Info
This application is a continuation of U.S. Ser. No. 07/920 770, filed Jul. 28, 1992, now abandoned.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
4135922 |
Cebulak |
Jan 1979 |
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5053085 |
Masumoto et al. |
Oct 1991 |
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Foreign Referenced Citations (2)
Number |
Date |
Country |
1151231 |
May 1969 |
GBX |
9102100 |
Feb 1991 |
WOX |
Continuations (1)
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Number |
Date |
Country |
Parent |
920770 |
Jul 1992 |
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