发明名称 |
HEAT-RESISTANT AND CREEP-RESISTANT ALUMINUM ALLOY AND BILLET THEREOF, AND METHOD FOR THEIR PRODUCTION |
摘要 |
A heat-resistant, creep-resistant aluminum alloy according to the present invention contains at least 10 mass % and not more than 30 mass % of silicon, at least 3 mass % and not more than 10 mass % of at least either iron or nickel in total, at least 1 mass % and not more than 6 mass % of at least one rare earth element in total and at least 1 mass % and not more than 3 mass % of zirconium with the rest substantially consisting of aluminum, while the mean crystal grain size of silicon is not more than 2 mu m, the mean grain size of compounds other than silicon is not more than 1 mu m, and the mean crystal grain size of an aluminum matrix is at least 0.2 mu m and not more than 2 mu m. Thus, an aluminum alloy excellent in heat resistance and creep resistance is obtained. <IMAGE> |
申请公布号 |
EP1371740(A4) |
申请公布日期 |
2004.07.21 |
申请号 |
EP20020705423 |
申请日期 |
2002.03.20 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
HATTORI, HISAO;TOKUOKA, TERUKAZU;TAKIKAWA, TAKATOSHI |
分类号 |
B22F3/16;C22C1/04;C22C21/00;C22C21/02 |
主分类号 |
B22F3/16 |
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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