%0 Journal Article
%T HIGH TEMPERATURE DEFORMATION BEHAVIOR OF TiAl INTERMETALLIC COMPOUND
%A HAO Shiming ZHENG Zhanqing Northeast University of Technology
%A Shenyang
%A China
%A <br>HAO Shiming ZHENG Zhanqing Northeast University of Technology
%A Shenyang
%A China
%J 金属学报(英文版)
%D 1990
%I 
%X The behavior of TiAl interrnetallic compound of Ll_0 type under compressive deformation athigh temperatures and its recrystallization microstructure have been studied.The compressiveproof stress of the polycrystalline TiAl was found to be positive temperature dependence assame as the single crystai one.The correlation of the flow stress together with strain rate anddeformation temperature is in good agreement with the expression:ε=Aσ_p~nexp(-Q/RT)Adjusting the deformation temperature and strain rate to a decrease in flow stress of alloydown to below its brittle fracture stress may improve successfully not only the hot working ofthe TiAl-base alloy but also the fineness of the recrystallized grains.
%K TiAl
%K high temperature deformation
%K recrystallization<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=C19B08D052F5FD8445F4BB80A1A5D7BF&aid=81B2194B0453AF23483ED3D42439F14A&yid=8D39DA2CB9F38FD0&vid=38B194292C032A66&iid=59906B3B2830C2C5&sid=BFB86B6ED3A99B9D&eid=A4E67967A1AB25F0&journal_id=1006-7191&journal_name=金属学报(英文版)&referenced_num=0&reference_num=4