发明名称 |
Aluminum alloy forged material for automotive vehicles and production method for the material |
摘要 |
<p>An aluminum alloy forged material for automotive vehicles comprises 0.6∼1.2 mass% of Mg, 0.7∼1.5 mass% of Si, 0.1∼0.5 mass% of Fe, 0.01∼0.1 mass% of Ti, 0.3∼1.0 mass% of Mn, at least one of 0.1∼0.4 mass% of Cr and 0.05∼0.2 mass% of Zr, a restricted amount of Cu that is less than or equal to 0.1 mass%, a restricted amount of Zn that is less than or equal to 0.05 mass %, a restricted amount of H that is less than or equal to 0.25 ml in 100g A1 and a remainder of A1 and inevitably contained impurities, and the material includes precipitated crystalline particles among which the largest one has a maximum equivalent circle diameter equal to or less than 8 µm and an area ratio of the precipitated crystalline particles is equal to or less than 3.6%.
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申请公布号 |
EP2644727(A3) |
申请公布日期 |
2014.01.01 |
申请号 |
EP20130001479 |
申请日期 |
2013.03.22 |
申请人 |
KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.) |
发明人 |
HORI, MASAYUKI;INAGAKI, YOSHIYA;NAKAI, MANABU |
分类号 |
C22C21/08;C22F1/047;C22F1/05 |
主分类号 |
C22C21/08 |
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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