热浸镀Zn、Al-Zn合金对钢/铝复合界面组织与性能的影响研究  

Effect of Hot-Dip Zn and Al-Zn Alloys on Microstructure and Properties of Steel/Aluminum Composite Interface

作　　者：夏建强 王宇 樊宗义 徐宏[2] XIA Jianqiang;WANG Yu;FAN Zongyi;XU Hong(Anhui Hengli Additive Manufacturing Technology Co.,Ltd.,Wuhu 241200,China;School of Materials Science and Engineering,North University of China,Taiyuan 030051,China)

机构地区：[1]安徽恒利增材制造科技有限公司,安徽芜湖241200 [2]中北大学材料科学与工程学院,山西太原030051

出　　处：《铸造技术》2022年第5期362-368,共7页Foundry Technology

基　　金：山西省高等学校科技创新项目(2020L0319);山西省基础研究计划面上项目(202103021224179);山西省重点研发计划国际科技合作项目(201903D421080)。

摘　　要：将钢基体在熔融的纯锌、铝锌合金中热浸镀不同时间后浇注铝合金,获得钢/铝复合铸件。研究热浸镀时间、热浸镀合金种类对钢/铝复合铸件中钢/铝界面显微组织和力学性能的影响。结果表明,钢热浸镀纯锌、铝锌合金后,钢/铝界面处均形成了靠近钢基体的Fe_(2)Al_(5)连续相层和靠近铝基体的FeAl_(3)弥散颗粒相层。随着热浸镀时间的延长,金属间化合物层厚度不断增大。钢热浸镀纯锌后,界面剪切强度最大为64.6 MPa;钢热浸镀铝锌合金后,界面剪切强度最大为83.2 MPa。The steel matrix was hot dipped in molten pure zinc and Al-Zn alloy for different times, and then aluminum alloy was poured to obtain the steel/aluminum composite casting. The effects of hot dip time and hot dip alloy on the microstructure and mechanical properties of steel/aluminum interface in steel/aluminum composite castings were studied.The results show that Fe_(2)Al_(5) continuous phase layer and FeAl_(3) dispersed particle phase layer are formed at the interface between steel and aluminum after hot dip plating of pure zinc and Al-Zn alloy. The thickness of intermetallic compound layer increases with the extension of hot dip time. The maximum interfacial shear strength of steel is 64.6 MPa after hot dip zinc plating. The maximum interfacial shear strength is 83.2 MPa after hot dip Al-Zn alloy.

关 键 词：钢/铝 固-液复合铸造 热浸镀 金属间化合物 力学性能 

分 类 号：TB331[一般工业技术—材料科学与工程] TG178[金属学及工艺—金属表面处理]