%0 Journal Article
%T INTERACTIONS BETWEEN La2O3 PARTICLES AND DISLOCATIONS IN Mo-La2O3 ALLOYS
%A JX Zhang
%A DM Liu
%A YQ Liu
%A ML Zhou
%A TY Zuo
%A <br>J.X.
%A Zhang
%A D.M.
%A Liu
%A Y.
%A Q.
%A Liu
%A M.L.
%A Zhou
%A T.
%A Y.
%A Zuo
%J 金属学报(英文版)
%D 2005
%I 
%X The mechanical properties of molybdenum wires doped with different contents of La2O3 were investigated systematicaUy and the interaction between La2O3 particles with dislocations in Mo- La2O3 wires were observed by SEM and TEM. It is shown that Mo-La2O3 wires possess much higher tensile strength than the pure Mo. In wires the dislocation motion is strongly hindered by La2O3 particles, which remains up to much higher temperature. Moreover, a number of prismatic dislocation loops and hexagonal dislocation network have been formed in annealed Mo-La2O3 wires. The higher strength of Mo-LazOs than the pure Mo is attributed to the La2O3 particles dispersion strengthening and dislocation strengthening.
%K molybdenum
%K La2O3 dislocation
%K strengthening<br>钼合金
%K La2O3
%K 强化
%K 机械性能
%K SEM
%K TEM
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=C19B08D052F5FD8445F4BB80A1A5D7BF&aid=A773D8C36C9EE75609EF8F9695E85D21&yid=2DD7160C83D0ACED&vid=13553B2D12F347E8&iid=B31275AF3241DB2D&sid=C4B91B15F1F73E7E&eid=5A027C8E6C570AAB&journal_id=1006-7191&journal_name=金属学报(英文版)&referenced_num=1&reference_num=12