| 简介 |
A casting Al-Mg-Zn-Si based aluminium alloy material for providing improved mechanical performance, includes the following components : greater than 7.0 and up to 15.0wt-% of magnesium, greater than 1.8 and up to 7.0wt-% of zinc, greater than 1.5 and up to 5.0wt-% of silicon, from 0.05 to 2.0wt-% of manganese, and additionally at least one element from 0 to 0.5 wt-% beryllium, 0 to 2. wt-% calcium, 0 to 1.5 wt-% strontium, 0 to 1.0wt-% titanium, 0 to 1.5wt-% copper, 0 to 0.5wt-% boron, 0 to 1.0wt-% scandium and 0 to 2.0wt-% rare earth elements, and the reminder of the alloy is aluminium and inevitable impurities.1 |
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