%0 Journal Article
%T CERIUM-INDUCED GRAIN BOUNDARY STRENGTHENING OF Ni_3Al ALLOYS<br>CERIUM-INDUCED GRAIN BOUNDARY STRENGTHENINGOF Ni_3Al ALLOYS
%A ZX Yuan
%A SH Song
%A TH Xi
%A XJ Zhangand ZS Yu
%A <br>Z.X. Yuan
%A S.H. Song
%A T.H. X.i
%A X.J. Zhangand Z.S. Yu
%J 金属学报(英文版)
%D 1997
%I 
%X The infiuence of cerium on grnin boundaries of polycrpstalline N3Al alloys has beenstudied. The ja6mcability of a Ce-doped N3Al alloy strongly depends on the certumcontent. The alloy exhibits very poor fabrica6ility and cannot be fabrtcated into goodsheet8 by cold rolling when the concentmtion of cerium is <0. 0088wt% or>0.044wt%.A 0.011wt?-doped N3Al alloy exhibits relatively good fabricability and may be fab-ricated into useful sheets by repeated cold rolling with 1OOa C annealing. The ductilityof the alloy strongly depends on the cerium distribution. Wthout the grain boundaryprecipitation of a second phase containing cer1um) the higher the segmpation level ofcerzum, the 6ettcr the tensile properties of the alloys, and in turn the more enhancedthe grain boundary cohesion.
%K segregation
%K Ni_3Al alloy
%K ductility
%K fabrication
%K cerium<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=C19B08D052F5FD8445F4BB80A1A5D7BF&aid=9C451147C73AC2525F8F80B6165F14E0&yid=5370399DC954B911&vid=F3090AE9B60B7ED1&iid=E158A972A605785F&sid=31125890FF093250&eid=FA88DCCE84EA0A56&journal_id=1006-7191&journal_name=金属学报(英文版)&referenced_num=0&reference_num=28