快速凝固Al－Cu－Mg合金的时效特征  

Aging Characteristic of Rapidly Solidified Al-Cu-Mg Alloys

作　　者：姚家鑫[1] 曹阳[1] 刘瑞贤[1] 李俊杰[1] 李国俊[1] 

机构地区：[1]天津大学

出　　处：《金属热处理学报》1995年第3期29-32,59,共5页

摘　　要：对离心雾化法制得的快速凝固Ａｌ－Ｃｕ－Ｍｇ合金的时效特征进行了研究。结果表明，随时效温度的升高，快速凝固Ａｌ－Ｃｕ－Ｍｇ合金的时效硬度峰值增加，且达峰值后硬度下降缓慢。在连续加热时效过程中，快速凝固Ａｌ－Ｃｕ－Ｍｇ合金有Ｓ”相形成过程，且Ｓ’相形成长大过程比较缓慢。从时效析出激活能、连续加热过程分析等方面进行了解释和验证。In this paper.aging behaviors of rapidly solidified (RS) Al-Cu-Mg alloymade by centifugal atomization method were studied,It has been shown that the aginghardness of RS Al-Cu-Mg alloy rises with the increasc of aging ternperature at first,andthen the hardness decreases very slowly after the peak of hardness. During continuous heating,RS Al-Cu-Mg alloy has the formation of S'phase,and S' phase grew slowly. The results are explained and confirrned by microstructure, precipitation activation energy and differential scanning calormeter (DSC).

关 键 词：快速凝固 时效特征 铝铜镁合金 

分 类 号：TG146.21[一般工业技术—材料科学与工程]