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采用快速凝固/粉末冶金法制备Al-17Si-6Fe-4.5Cu-0.5Mg合金,并进行T6处理.利用现代测试手段对挤压态及T6处理态合金微观组织及拉伸性能进行研究.结果表明:采用这种工艺可使合金组织中第二相得到显著细化,经T6处理后第二相有粗化趋势,同时也有新相沉淀析出;合金拉伸性能主要表现在高强、低塑性及良好耐热性.

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