发明名称 |
Method of imparting a fine grain structure to aluminum alloys having precipitating constituents |
摘要 |
A method is provided for imparting a fine grain structure to aluminum alloys which have precipitating constituents. The alloy is first heated to a solid solution temperature to dissolve the precipitating constituents in the alloy. The alloy is then cooled, preferably by water quenching, to below the solution temperature and then overaged to form precipitates by heating it above the precipitation hardening temperature for the alloy but below its solution treating temperature. Strain energy is introduced into the alloy by plastically deforming it at or below the overaging temperature used. The alloy is then subsequently held at a recrystallization temperature so that the new grains are nucleated by the overaged precipitates and the development of these grains results in a fine grain structure.
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申请公布号 |
US4092181(A) |
申请公布日期 |
1978.05.30 |
申请号 |
US19770790207 |
申请日期 |
1977.04.25 |
申请人 |
ROCKWELL INTERNATIONAL CORPORATION |
发明人 |
PATON, NEIL E.;HAMILTON, C. HOWARD |
分类号 |
C22F1/04;C22F1/043;C22F1/05;C22F1/053;C22F1/057;(IPC1-7):C22F1/04 |
主分类号 |
C22F1/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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