典型文献
Achieving strength-ductility synergy in a non-equiatomic Cr10CO30Fe30Ni30 high-entropy alloy with heterogeneous grain structures
文献摘要:
Cold rolling and post-deformation annealing(PDA)heat treatments were used to produce heterogeneous grain structures(HGS)in a single-phase face-centered cubic(fcc)Cr10Co30Fe30Ni30 high-entropy alloy(HEA).The microstructural evolution and microstructure-property relationship of the HEA were systematically studied under different states.HGS could be achieved in PDA-treated samples at 875℃for 20 s and at 900℃for 20 s(PDA-900-20 s).PDA-900-20 s sample exhibits the most excel-lent combination of strength and ductility,showing a ten-sile yield strength of~590 MPa,an ultimate strength of~706 MPa and a total elongation of~23.9%.Addi-tionally,compared with the homogenized counterpart exhibiting homogenous grains,PDA-900-20 s sample dis-plays a notable increment of~413%in yield strength and simultaneously maintains a good ductility.The dominated strengthening mechanisms in PDA-900-20 s sample are grain-boundary strengthening and heterogeneous defor-mation-induced(HDI)strengthening,whereas the good ductility is mainly resulted from the HDI ductility.Accordingly,the present study provides an effective and simple pathway to overcome the strength-ductility trade-off of typical fcc HEAs through heterogeneous microstructure.
文献关键词:
中图分类号:
作者姓名:
Chen-Liang Chu;Wei-Ping Chen;Jun-Chen Liu;Qiang Chen;Zhi-Qiang Fu
作者机构:
Guangdong Key Laboratory for Advanced Metallic Materials Processing,South China University of Technology,Guangzhou 510641,China;Southwest Technology and Engineering Research Institute,Chongqing 400039,China
文献出处:
引用格式:
[1]Chen-Liang Chu;Wei-Ping Chen;Jun-Chen Liu;Qiang Chen;Zhi-Qiang Fu-.Achieving strength-ductility synergy in a non-equiatomic Cr10CO30Fe30Ni30 high-entropy alloy with heterogeneous grain structures)[J].稀有金属(英文版),2022(08):2864-2876
A类:
Cr10CO30Fe30Ni30,Cr10Co30Fe30Ni30
B类:
Achieving,ductility,synergy,equiatomic,high,entropy,alloy,heterogeneous,structures,Cold,rolling,post,deformation,annealing,PDA,heat,treatments,were,used,produce,HGS,single,phase,face,centered,cubic,fcc,microstructural,evolution,microstructure,property,relationship,systematically,studied,under,different,states,could,be,achieved,treated,samples,exhibits,most,excel,lent,combination,showing,ten,sile,yield,ultimate,total,elongation,Addi,tionally,compared,homogenized,counterpart,exhibiting,homogenous,grains,dis,plays,notable,increment,simultaneously,maintains,good,dominated,strengthening,mechanisms,boundary,induced,HDI,whereas,mainly,resulted,from,Accordingly,present,study,provides,effective,simple,pathway,overcome,trade,off,typical,HEAs,through
AB值:
0.577623
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