时效工艺对Cu-12%Fe合金组织性能的影响Effect of aging process on microstructure and properties of Cu-12%Fe alloy
陈翼,张进东,孟亮
摘要(Abstract):
用熔铸法制备了Cu-12%Fe合金,研究了经1000℃固溶后不同时效工艺对合金的相组成、显微组织、硬度及电导率的影响。结果表明,550℃时效可细化合金的Fe枝晶,消除Cu基体枝晶偏析并改变晶面间距。合金硬度在时效初期时下降,随后增加并达到最大值后再次下降。在350℃和450℃时效时,电导率随时效时间增加而上升。在550℃和650℃时效时,电导率随时效时间先增加而后下降。对Cu-12%Fe合金固溶并在550℃时效4h,可以获得良好的力学和电学性能匹配。
关键词(KeyWords): Cu-Fe合金;固溶时效;显微组织;硬度;电导率
基金项目(Foundation): 国家自然科学基金资助项目(50671092)
作者(Author): 陈翼,张进东,孟亮
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