%0 Journal Article
%T AN INVESTIGATION OF CERTAIN INTERGRANULAR CRACKS IN THE CORE OF A 20Cr2Ni4A STEEL BILLET<br>
%A Tian Ji-feng Liu Xing-zhi
%A Wei Kun
%A <br>
%J 金属学报
%D 1978
%I 
%X An investigation has been carried out on the so-called intergranular cracks appearing in the central part of a macroetched transverse section of a 20Cr2Ni4A steel billet. It is shown that this in fact was a kind of acid-etching phenomenon, due to low-melting inclusions at the interdendritic boundaries appearing as cracks. The above observation was further substantiated in laboratory ingots by the introduction of certain low-melting inclusions into experimental melts.
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=EA1DFE7D8F5E9CC7A414154303A5DBF1&yid=EA437CDB73D9759D&vid=F3583C8E78166B9E&iid=0B39A22176CE99FB&sid=73579BC9CFB2D787&eid=10828928EB89AD8E&journal_id=0412-1961&journal_name=金属学报&referenced_num=0&reference_num=3