%0 Journal Article
%T PREDICTION OF SHRINKAGE CAVITY AND POROSITY IN GRAY CAST IRON DURING SOLIDIFICATION<br>灰铁凝固过程中缩孔缩松的预测
%A YANG Jie
%A DONG Huaiyu
%A XIONG Shoumei
%A <br>杨 杰
%A 董怀宇
%A 熊守美
%J 金属学报
%D 2005
%I 
%X The effects of carbon equivalent and inoculation on solidification process of gray cast iron were studied by thermal analysis experiments and pouring experiments of gray iron castings. Based on the dynamic expansion and contraction accumulation method, a shrinkage prediction model of gray cast iron was developed, in which the pouring temperature, carbon equivalent and inoculation were comprehensively considered. Besides, all the volume variations during solidification process, such as the contraction of melt, the contraction or expansion of primary graphite or austenite and eutectic phase, were taken into consideration during computation. A numerical simulation system especially for the solidification process of gray iron castings was developed and used to analyze the solidification process of practical gray iron castings. The simulation results are consistent with the experimental ones.
%K gray cast iron
%K solidification
%K shrinkage cavity and porosity
%K prediction model
%K numerical simulation<br>灰铁
%K 凝固
%K 缩孔缩松
%K 预测模型
%K 数值模拟
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=60B8F77A33B9F87D&yid=2DD7160C83D0ACED&vid=2001E0D53B7B80EC&iid=9CF7A0430CBB2DFD&sid=0FBB0D015A3E9A88&eid=796A97DD793AE4A8&journal_id=0412-1961&journal_name=金属学报&referenced_num=1&reference_num=7