%0 Journal Article
%T HOT DEFORMATION BEHAVIOUR OF Nb-BEARING LOW CARBON STEEL AND PREDICTION OF FLOW STRESS FOR METALS DURING PLASTIC DEFORMATION
%A GAO WeilinBAI Guangrun
%A ZHOU Zhimin
%A LUAN Guifu Northeast University of TechnologyShenyang
%A ChinaLONG Chunman Anshan Iron
%A Steel Company
%A China Lecturer
%A Post Box NoNortheast University of TechnologyShenyang
%A China
%A <br>GAO Weilin.BAI Guangrun
%A ZHOU Zhimin
%A LUAN Guifu Northeast University of Technology.Shenyang
%A China LONG Chunman Anshan Iron and Steel Company
%A China Lecturer
%A Post Box No..Northeast University of Technology.Shenyang
%A China
%J 金属学报(英文版)
%D 1993
%I 
%X Experimental investigation of hot deformation behaviour of Nb-bearing low carbon steel 14MnNb was carried out by Gleeble 1500 simulator.Regressive analysis was made of the re- lationship between deformation onditions and steady state flow stress during hot deformation and the peak fliw stress corresponding to dynamic recrystallization.Clarification was also described for the influence of strain-induced Nb(C.N)precipitation on the activation energy of deformation.On the basis of analyzing the processes of dislocation multiplication and re- coveries from cross-slip of screw dislocation and from climb of edge dislocation during plastic deformation of metals.the theoretical mpdel to predict flow stress under the condiltions of dy- namic recorery and recrystallization occirred simultancously was developed,The prediction about flow stress in practice,under various deformation conditions by the model seems in fair agreement with the experimental results.
%K flow stress
%K activation energy
%K dynamic recovery
%K dynamic reervstallization<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=C19B08D052F5FD8445F4BB80A1A5D7BF&aid=BF9062C23ACA81A976C283FFB4F0D4F1&yid=D418FDC97F7C2EBA&vid=B31275AF3241DB2D&iid=CA4FD0336C81A37A&sid=8E6AB9C3EBAAE921&eid=9FFCC7AF50CAEBF7&journal_id=1006-7191&journal_name=金属学报(英文版)&referenced_num=0&reference_num=10