复合变质处理对4032铝合金组织和性能的影响  

Effect of Compound Modification on Microstructure and Property of 4032 Aluminum Alloy

作　　者：冉红卫 RAN Hong-wei(Southwest Aluminum（Group）Co.,Ltd.,Chongqing 401326,China)

机构地区：[1]西南铝业(集团)有限责任公司,重庆401326

出　　处：《铝加工》2018年第3期29-33,共5页Aluminium Fabrication

摘　　要：4032铝合金是一种广泛应用于航空、航天及汽车制造等领域的Al-Si系合金。在未经变质处理的4032铝合金组织中,常常出现大块的初晶硅和针状的共晶硅,导致产品的力学性能较低,尤其是塑性。熔铸过程中对熔体进行变质处理是解决4032出现初晶硅的有效方法。本文主要研究不同复合变质剂在实际生产中对4032铝合金组织性能的影响,从而获得稳定的工艺和产品。4032 aluminum alloy is a kind of Al-Si system alloy used widely for aeronautics and astronautics and automobile manufacture fields. Massive primary silicon and needlelike eutectic silicon occurred in microstructure of unmodified 4032 aluminum alloy,thus leading to low mechanical property, especially plasticity. Modification of melt during melting and casting is the effective method to solve the problem of primary silicon. Effect of various compound modifiers on microstructure of 4032 aluminum alloy in actual production, thus obtaining stable process and products.

关 键 词：4032铝合金 变质处理 初晶硅 力学性能 

分 类 号：TG146.21[一般工业技术—材料科学与工程]