典型文献
Temperature-dependent tensile properties of ultrafine-grained C-doped CoCrFeMnNi high-entropy alloy
文献摘要：
Metallic materials can be strengthened by var-ious kinds of plastic deformation strategies.However,the deformed materials suffer poor ductility and thermal sta-bility due to the high-density defects.In this work,we prepared fully recrystallized ultrafine-grained(UFG)1％C-CoCrFeMnNi high-entropy alloy(C-HEA)through cold rolling and annealing process.Quasi-static tensile tests were performed at temperatures between 77 and 823 K.Deformation microstructures of the samples after tensile tests were characterized,and deformation mechanisms were discussed.There is a transition of deformation mechanisms from twinning and dislocation slip to dislo-cation slip and grain boundary sliding with temperature increasing.The UFG C-HEA exhibits balanced strength and ductility from the cryogenic temperature to high tem-peratures,indicating highly adaptive microstructure and mechanical properties.The strength and uniform elonga-tion of the UFG C-HEA decrease monotonously with temperature increasing,but the elongation to failure exhi-bits the lowest value at the medium temperature.The grain boundary sliding is supposed to assist the unconventionally high elongation at 823 K.
文献关键词：
中图分类号：
作者姓名：
Yan-Zhong Tian;Si-Yuan Peng;Shang-Feng Chen;Zi-Jian Gu;Yang Yang;Xiu-Ling Shang;Guan-Yu Deng;Li-Hong Su;Shi-Jie Sun
作者机构：
Key Laboratory for Anisotropy and Texture of Materials(Ministry of Education),School of Materials Science and Engineering,Northeastern University,Shenyang 110819,China;Innovation Center of GD Midea Air-Conditioning Equipment Co.,Ltd,Foshan 528311,China;School of Mechanical,Materials,Mechatronic and Biomedical Engineering,University of Wollongong,Wollongong,NSW 2500,Australia;Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China
文献出处：
引用格式：
[1]Yan-Zhong Tian;Si-Yuan Peng;Shang-Feng Chen;Zi-Jian Gu;Yang Yang;Xiu-Ling Shang;Guan-Yu Deng;Li-Hong Su;Shi-Jie Sun-.Temperature-dependent tensile properties of ultrafine-grained C-doped CoCrFeMnNi high-entropy alloy)[J].稀有金属（英文版）,2022(08):2877-2885
A类：
unconventionally
B类：
Temperature,dependent,tensile,properties,ultrafine,grained,doped,CoCrFeMnNi,entropy,alloy,Metallic,materials,can,strengthened,by,var,ious,kinds,plastic,deformation,strategies,However,deformed,suffer,poor,ductility,thermal,bility,due,density,defects,In,this,work,prepared,fully,recrystallized,UFG,HEA,through,cold,rolling,annealing,process,Quasi,static,tests,were,performed,temperatures,between,Deformation,microstructures,samples,after,characterized,mechanisms,discussed,There,transition,from,twinning,dislocation,slip,boundary,sliding,increasing,exhibits,balanced,cryogenic,indicating,highly,adaptive,mechanical,uniform,decrease,monotonously,but,elongation,failure,lowest,value,medium,supposed,assist
AB值：
0.541686
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