Correlation of recalescence with grain refinement of magnesium alloys  

作　　者：高磊 梁松茂 陈荣石 韩恩厚 

机构地区：[1]State Key Laboratory for Corrosion and Protection,Institute of Metal Research,Chinese Academy of Sciences [2]Graduate School of Chinese Academy of Sciences

出　　处：《中国有色金属学会会刊：英文版》2008年第A01期288-291,共4页Transactions of Nonferrous Metals Society of China

基　　金：Project(2007CB613704)supported by the National Basic Research Program of China;Project(50574086)supported by the NationalNatural Science Foundation of China

摘　　要：The grain refinement of Mg-Al based alloys with carbon inoculation was investigated by a computer-aided cooling curve analysis(CA-CCA) system.The results show that carbon inoculation decreases the main parameters of the recalescence regime during the initial stage of solidification.These parameters include the recalescence undercooling(Δθ_(rec)),duration of recalescence (t_(rec)),and liquid peak parameter(LPP) which is firstly introduced into magnesium alloys.The resultant grain size decreases with increasing nucleation temperature(θ_n) and decreasing values ofΔθ_(rec),t_(rec) and LPP.The grain refinement of Mg-AI based alloys with carbon inoculation was investigated by a computer-aided cooling curve analysis （CA-CCA） system. The results show that carbon inoculation decreases the main parameters of the recalescence regime during the initial stage of solidification. These parameters include the recalescence undercooling （△θrec）, duration of recalescence （trec）, and liquid peak parameter （LPP） which is firstly introduced into magnesium alloys. The resultant grain size decreases with increasing nucleation temperature （On） and decreasing values of △θrec, trec and LPP.

关 键 词：镁合金 晶粒细化 热处理 变形 

分 类 号：TG146.22[一般工业技术—材料科学与工程]