(山東大學(xué) 教育部材料液態(tài)結(jié)構(gòu)及其遺傳性重點(diǎn)實(shí)驗(yàn)室，濟(jì)南 250061)
摘 要: 研究了經(jīng)熔劑法預(yù)處理的碳鋼熱浸鍍ZAS35鋅合金工藝、ZAS35鋅合金/碳鋼雙金屬制作工藝及雙金屬界面特性。試驗(yàn)表明，采用700 ℃及10 min熱浸鍍法，鑄型預(yù)熱至500 ℃，ZAS35合金液澆注溫度為700℃的工藝能獲得結(jié)合良好的ZAS35鋅合金/碳鋼雙金屬復(fù)合材料。微觀結(jié)構(gòu)分析表明，雙金屬結(jié)合界面處存在著Fe，Al和Zn元素的相互擴(kuò)散，且形成了Fe3Al和FeZn7等相。ZAS35和碳鋼的結(jié)合面屬冶金結(jié)合。
關(guān)鍵字: 鋅鋁合金； 熱浸鍍； 雙金屬； 界面特性
ZAS35 zinc alloy/carbon steel
ZHANG Yan-ning, TIAN Xian-fa
（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
