%0 Journal Article
%T EFFECT OF Na,K AND Ce ON CRACK PROPAGATION RESISTANCE FOR ALLOY 8090
%A MENG Liang ZHANG Baochang LIANG Ying ZHANG Weizhong TIAN Puke Northwestern Polytechnical University
%A Xi''''an
%A China
%A <br>MENG Liang ZHANG Baochang LIANG Ying ZHANG Weizhong TIAN Puke Northwestern Polytechnical University
%A Xi''''an
%A China
%J 金属学报(英文版)
%D 1992
%I 
%X The crack propagation resistance for alloy 8090 sheet decreases with the increase of content of Na and K impurities.An improvement over the fracture toughness and crack initiation resist- ance for the alloy containing Na and K within certain limit may be made by adding 0.05% Ce.This beneficial modification would not be manifested if the alloy contained more Na and K.One of the reasons why Na and K injure the toughness of the alloy might be due to that they cause the precipitation of T_1 phase along grain and subgrain boundaries and accelerate the abnormal growth of recystallized grains.
%K alloy 8090
%K crack propagation resistance
%K Na
%K K
%K Ce<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=C19B08D052F5FD8445F4BB80A1A5D7BF&aid=987D940D5599FBCF7448AC3121D2DA9A&yid=F53A2717BDB04D52&vid=94C357A881DFC066&iid=94C357A881DFC066&sid=50EA2A80A7D254EF&eid=9D9F10A828991FA6&journal_id=1006-7191&journal_name=金属学报(英文版)&referenced_num=0&reference_num=5