挤压铸造及热处理对Al-Si系合金组织及性能的影响进展  

Progress in Effects of Squeeze Casting Process Parameters and Heat Treatment on Microstructure and Properties of Al-Si Alloy

作　　者：薛利文 周文强 朴一男 赵海冬 张梦娜 贾海龙 马品奎 宋家旺 查敏 王慧远[1] Xue Liwen;Zhou Wenqiang;Piao Yi′nan;Zhao Haidong;Zhang Mengna;Jia Hailong;Ma Pinkui;Song Jiawang;Zha Min;Wang Huiyuan(Key Laboratory of Automobile Materials of Ministry of Education,School of Materials Science and Engineering,Jilin University)

机构地区：[1]吉林大学材料科学与工程学院,汽车材料教育部重点实验室,长春130025

出　　处：《特种铸造及有色合金》2021年第7期842-848,共7页Special Casting & Nonferrous Alloys

基　　金：国家重点研发计划资助项目(2019YFB2006501);国家自然科学基金青年基金资助项目(52001133)。

摘　　要：Al-Si系合金具有良好的铸造性能和加工性能,且经过变质处理和热处理后,力学性能和抗蚀性能可进一步提高,是应用较为广泛的铸造铝合金。然而,轨道交通、航空航天等领域的快速发展对Al-Si系合金的强塑性能提出了更高要求。挤压铸造铝合金零部件具有各向异性弱、铸造缺陷少和力学性能好等特点,在轨道交通、航空航天等领域的应用前景广阔。对Al-Si系合金(半固态)挤压铸造工艺参数及热处理工艺参数对组织和性能的影响进行了归纳总结,为挤压铸造高性能Al-Si系合金的应用提供借鉴。Al-Si alloys have excellent casting properties and good processing properties.After modification and heat treatments,the mechanical properties and corrosion resistance of Al-Si alloys can be further improved,which are widely used casting aluminum alloys.However,the rapid development of rail transportation and aerospace has put forward higher requirements for the performance of Al-Si alloys.Squeeze casting Al alloy parts have the advantages of weak anisotropic,fewer casting defects and good mechanical properties,etc.,which have broad prospects for application in rail transportation and aerospace.The effects of(semi-solid)squeeze casting process parameters and heat treatment parameters on microstructural evolution and performance of squeeze casting Al-Si alloys were reviewed,which provided a reference for the preparation of high performance Al-Si alloys by squeeze casting in the future.

关 键 词：挤压铸造 AL-SI系合金 半固态 热处理 力学性能 

分 类 号：TG146.21[一般工业技术—材料科学与工程] TG249.28[金属学及工艺—金属材料]