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.
出处
《中国有色金属学会会刊：英文版》
CSCD
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
关键词
镁合金
晶粒细化
热处理
变形
magnesium alloys
grain refinement
recalescence
thermal analysis
