典型文献
Formability enhancement in hot spinning of titanium alloy thin-walled tube via prediction and control of ductile fracture
文献摘要：
The damage and fracture in hot spinning of titanium alloy is a very complex process under the combined effects of microstructure evolution and stress state.In this study,their depen-dences on processing parameters were investigated by an integrated FE model considering microstructure and damage evolution,and revealing the effects of microstructure and stress states on damage evolution.The results show that the inner surface of workpiece with the largest voids volume fraction is the place with the greatest potential of fracture.This is mainly attributed to the superposition effects of positive stress triaxiality and the smallest dynamic recrystallization(DRX) fraction and β phase fraction at the inner surface.The damage degree is decreased gradually with the increase of initial spinning temperature and roller fillet radius.Meanwhile,it is first decreased and then increased with the increases of spinning pass and roller feed rate,which can be explained based on the variations of β phase fraction,DRX fraction,stress state and tensile plas-tic strain with processing parameters.In addition,the dominant influencing mechanisms were iden-tified and discussed.Finally,the thickness reduction without defect in the hot spinning of TA15 alloy tube is greatly increased by proposing an optimal processing scheme.
文献关键词：
中图分类号：
作者姓名：
Pengfei GAO;Chao YU;Mingwang FU;Lu XING;Mei ZHAN;Jing GUO
作者机构：
State Key Laboratory of Solidification Processing,Shaanxi Key Laboratory of High-Performance Precision Forming Technology and Equipment,School of Materials Science and Engineering,Northwestern Polytechnical University,Xi'an 710072,China;Department of Mechanical Engineering,The Hong Kong Polytechnic University,Hung Hom,Kowloon,Hong Kong 999077,China;Institute of Chemical Materials,China Academy of Engineering Physics,Mianyang 621900,China
文献出处：
引用格式：
[1]Pengfei GAO;Chao YU;Mingwang FU;Lu XING;Mei ZHAN;Jing GUO-.Formability enhancement in hot spinning of titanium alloy thin-walled tube via prediction and control of ductile fracture)[J].中国航空学报（英文版）,2022(02):320-331
A类：
Formability,dences,triaxiality
B类：
enhancement,hot,spinning,titanium,alloy,thin,walled,tube,via,prediction,control,ductile,fracture,damage,very,complex,under,combined,effects,microstructure,evolution,stress,In,this,study,their,depen,processing,parameters,were,investigated,by,integrated,FE,model,considering,revealing,states,results,show,that,inner,surface,workpiece,largest,voids,volume,fraction,place,greatest,potential,This,mainly,attributed,superposition,positive,smallest,dynamic,recrystallization,DRX,phase,degree,decreased,gradually,initial,temperature,roller,fillet,radius,Meanwhile,first,then,increased,increases,pass,feed,which,can,explained,variations,tensile,plas,tic,strain,addition,dominant,influencing,mechanisms,iden,tified,discussed,Finally,thickness,reduction,without,defect,TA15,greatly,proposing,optimal,scheme
AB值：
0.549926
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