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A cast bar of an aluminum alloy for wrought products, having improved mechanical properties and workability
A cast bar of an aluminum alloy for wrought products, having improved mechanical properties and workability
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机译：用于锻造产品的铝合金铸条，具有改善的机械性能和可加工性
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摘要
The continuously cast bar of aluminum base alloy for wrought product according to the present invention: is of homogeneous structure; is free of defects; exhibits excellent mechanical properties, and; can be subjected, as cast or after a heat, treatment, to a working operation such as forging. The critical value of the secondary dendrite arm spacing (DAS) is 20 mu m; critical value of the size of second phase particles is 15 mu m and the critical value of primary crystal size is 50 mu m for the following composition:- AA 4000 Al-Si-Mg series alloy: 4-12% Si; 0.6-1.3% Mg, and; balance Al. AA 4000 Al-Si-Cu-Mg series alloy: 2-12% Si; 1.5-5.0% Cu; 0.8-1.3% Mg, and balance Al.
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