%0 Journal Article
%T INFLUENCE OF COMPOSITION ON HOT CRACKING TENDENCY OF DIRECTIONALLY SOLIDIFIED Al-Cu ALLOY<br>化学成分对定向凝固Al－Cu合金热裂倾向的影响
%A DING Hao
%A FU Hengzhi
%A LUO Shuanzhu
%A LIU Zhongyuan
%A ZHANG Kefu
%A <br>丁浩
%A 傅恒志
%A 罗栓柱
%A 刘忠元
%A 张克福
%J 金属学报
%D 1995
%I 
%X A semi-quantitative method was proposed to evaluate hot cracking tendency.Hot cracking experiments were carried out in directional solidification device for Al-Cu alloys with different compositions. Through comparision between theoretical calculation and experiment results,it was proved that the influence of alloy composition on hot cracking tendency is in conformity with the accommodation theory of alloy contraction in solidification process.The prediction was also proved by experiments about the effect of columnar grain structure on the interdendritic bridging.
%K directional solidification
%K hot cracking tendency
%K interdendritic bridging<br>定向凝固，热裂倾向，晶间搭桥
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=A3582EB932064F38CB82CF5CFB3C2E02&yid=BBCD5003575B2B5F&vid=4AD960B5AD2D111A&iid=5D311CA918CA9A03&sid=09D368C679EC819B&eid=A7AE820C12CC9AD3&journal_id=0412-1961&journal_name=金属学报&referenced_num=0&reference_num=1