(山东大学 教育部材料液态结构及其遗传性重点实验室，济南 250061)
摘 要: 研究了经熔剂法预处理的碳钢热浸镀ZAS35锌合金工艺、ZAS35锌合金/碳钢双金属制作工艺及双金属界面特性。试验表明，采用700 ℃及10 min热浸镀法，铸型预热至500 ℃，ZAS35合金液浇注温度为700℃的工艺能获得结合良好的ZAS35锌合金/碳钢双金属复合材料。微观结构分析表明，双金属结合界面处存在着Fe，Al和Zn元素的相互扩散，且形成了Fe3Al和FeZn7等相。ZAS35和碳钢的结合面属冶金结合。
关键字: 锌铝合金； 热浸镀； 双金属； 界面特性
ZAS35 zinc alloy/carbon steel
（The Key Laboratory for Liquid Structure and Heredity of Materials,
Ministry ofEducation, Shandong University, Jinan 250061, P.R.China）
Abstract:With carbon steel pretreated with flux, hot dip coating process and bimetal producing of ZAS35 alloy/carbon steel as well as bimetal interface characteristic were studied. The results show that the good quality bimetal composite of ZAS35/carbon steel can be produced by the process of hot dip coating with 700 ℃ ZAS35 melt for 10 min, with the casting mold preheated up to 500 ℃ and ZAS35 alloy poured at 700 ℃. The results of microstructure observation and analysis indicated that mutual diffus, ion of Fe, Al and Zn elements, Fe3Al and FeZn7 phase existed in the combining interface. The metallurgical interface of ZAS35 alloy/carbon steel was formed.
Key words: zinc-aluminum alloys; hot dip coating; bimetal; interface characteristic
