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Al-Mg-Si-Cu ALLOY SHEET EXCELLENT IN CORROSION RESISTANCE AND FORMABILITY, AND ITS MANUFACTURE
Al-Mg-Si-Cu ALLOY SHEET EXCELLENT IN CORROSION RESISTANCE AND FORMABILITY, AND ITS MANUFACTURE
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机译：Al-Mg-Si-Cu合金板在耐蚀性和成形性方面的优异表现及其制造
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摘要
PROBLEM TO BE SOLVED: To manufacture an Al-Mg-Si-Cu alloy sheet having high BH characteristic and excellent in corrosion resistance as well as in formability.;SOLUTION: This alloy has a composition consisting of, by weight, 0.1-0.65% Mg, 0.4-2% Si, 0.8-1.4% Cu, further one or plural kinds among 0.03-1.5% Zn, 0.03-0.2% Mn, 0.03-0.2% Cr, 0.03-0.15% Zr, 0.03-0.15% V, 0.03-0.3% Fe, and 0.005-0.1% Ti, and the balance Al with inevitable impurities and satisfying Mg+Cu=0.9 to 1.5. Moreover, the maximum size of Cu-containing precipitates on the grain boundaries is ≤0.5μm and these precipitates comprise ≤5% of the grain boundary surface, and further, the number of crystallized substances of ≥0.2μm maximum size in the grain is 20 pieces to 100 μm2.;COPYRIGHT: (C)2001,JPO
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机译：解决的问题：制造具有高BH特性，优异的耐腐蚀性和可成型性的Al-Mg-Si-Cu合金薄板;解决方案：该合金的成分为0.1-0.65％（重量） Mg，0.4-2％的Si，0.8-1.4％的Cu，0.03-1.5％的Zn，0.03-0.2％的Mn，0.03-0.2％的Cr，0.03-0.15％的Zr，0.03-0.15％的V中的另外一种或多种， Fe为0.03〜0.3％，Ti为0.005〜0.1％，余量的Al为不可避免的杂质，且Mg + Cu ＝ 0.9〜1.5。而且，在晶界上的含Cu沉淀物的最大尺寸为±0.5μm，并且这些沉淀物占晶界表面的±5％，此外，结晶物质的数量为±0.2μm。谷物的最大尺寸为<20件至100μm2。;版权：（C）2001，JPO
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