典型文献
Segregation enabled outstanding combination of mechanical and corrosion properties in a FeCrNi medium entropy alloy manufactured by selective laser melting
文献摘要：
Selective laser melting(SLM)has the advantage in preparing supersaturated solid solutions due to its unique thermal field and high solidification rate.In this study,a face-centered cubic single-phase FeCrNi medium entropy alloy(MEA)with an ultrahigh Cr content(～35 at.％)was additively manufactured by SLM.The as-built MEA shows a hierarchical microstructure of coarse columnar grains and submicron dislocation cell structures,where the cell boundaries are probed segregated with Cr and C and decorated with nano carbides.The appearance of these dislocation barriers results in an excellent combination of strength(σ0.2=745 MPa,σUTS=1007 MPa)and ductility(εf=31％).The current MEA also shows a superb corrosion resistance with a corrosion current density of 0.06 μA cm-2 in 3.5 wt.％NaCl solution,which is far lower than that of 316 L.The high content of solutioned Cr in the MEA ensures sufficient Cr supply to form an integrated Cr2O3 passive film,and the large number of cell boundaries acting as the diffusion channels lead to the fast formation of a stable passive film over the alloy surface.
文献关键词：
中图分类号：
作者姓名：
Heng Duan;Bin Liu;Ao Fu;Junyang He;Tao Yang;C.T.Liu;Yong Liu
作者机构：
State Key Lab of Powder Metallurgy,Central South University,Changsha 410083,China;Max-Planck-Institut für Eisenforschung,Max-Planck-Stra?e 1,Dusseldorf 40237,Germany;Department of Materials Science and Engineering,City University of Hong Kong,Hong Kong,China;Department of Mechanical Engineering,City University of Hong Kong,Hong Kong,China
文献出处：
引用格式：
[1]Heng Duan;Bin Liu;Ao Fu;Junyang He;Tao Yang;C.T.Liu;Yong Liu-.Segregation enabled outstanding combination of mechanical and corrosion properties in a FeCrNi medium entropy alloy manufactured by selective laser melting)[J].材料科学技术（英文版）,2022(04):207-214
A类：
FeCrNi,solutioned
B类：
Segregation,enabled,outstanding,combination,mechanical,corrosion,properties,medium,entropy,alloy,manufactured,by,selective,laser,melting,Selective,SLM,advantage,preparing,supersaturated,solutions,due,its,unique,thermal,field,solidification,In,this,study,centered,cubic,single,phase,MEA,ultrahigh,content,was,additively,built,shows,hierarchical,microstructure,coarse,columnar,grains,submicron,dislocation,structures,where,boundaries,are,probed,segregated,decorated,nano,carbides,appearance,these,barriers,results,excellent,strength,UTS,ductility,current,also,superb,resistance,density,wt,NaCl,which,far,lower,than,that,ensures,sufficient,supply,integrated,Cr2O3,passive,film,large,number,acting,diffusion,channels,lead,fast,formation,stable,over,surface
AB值：
0.611022
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