典型文献
Homogenization heat treatment for an additively manufactured precipitation-hardening high-entropy alloy
文献摘要：
A precipitation-hardening high-entropy alloy(HEA),(FeCoNi)86Al7Ti7,was successfully fabricated using selective laser melting(SLM).Severe segregation of Ti occurred at the boundaries of dislocation cells.There-fore,homogenization heat treatment at 1150℃for 0.5 h was performed to alleviate the microsegregation.After homogenization,almost no dislocation cells were left in the grains,and recrystallization occurred as the average grain size increased from 37 to 54 um.Compared with the initial as-built HEA,the ductility of the HEA increases signifi-cantly from 29％to 40％,and the strength decreases slightly from 710 to 606 MPa.For further aging,pre-ho-mogenization can decrease the precipitation of ordered L21 phases.Because void has a high propensity to initiate from the matrix/L2t incoherent interface,pre-homogenization reduced the number of weak points,thus considerably improving the plastic deformation ability of the aged HEA by 36％.In addition,the strengthening mechanism has also been analyzed for the aged HEA.It was revealed that the coherent L12 precipitate contributed the most to the increased strength.
文献关键词：
中图分类号：
作者姓名：
Zhi-Yuan Liu;Xin-Yi Zhao;Yao-Wen Wu;Qiang Chen;Bao-Hua Yang;Pei Wang;Zhang-Wei Chen;Can Yang
作者机构：
Additive Manufacturing Institute,College of Mechatronics and Control Engineering,Shenzhen University,Shenzhen 518060,China;Sino-German College of Intelligent Manufacturing,Shenzhen Technology University,Shenzhen 518118,China
文献出处：
引用格式：
[1]Zhi-Yuan Liu;Xin-Yi Zhao;Yao-Wen Wu;Qiang Chen;Bao-Hua Yang;Pei Wang;Zhang-Wei Chen;Can Yang-.Homogenization heat treatment for an additively manufactured precipitation-hardening high-entropy alloy)[J].稀有金属（英文版）,2022(08):2853-2863
A类：
86Al7Ti7,mogenization,L2t
B类：
Homogenization,heat,treatment,additively,manufactured,precipitation,hardening,high,entropy,alloy,HEA,FeCoNi,was,successfully,fabricated,using,selective,laser,melting,SLM,Severe,occurred,boundaries,dislocation,cells,There,fore,homogenization,performed,alleviate,microsegregation,After,almost,no,were,left,grains,recrystallization,average,size,increased,from,Compared,initial,built,ductility,increases,signifi,cantly,decreases,slightly,For,further,aging,ordered,L21,phases,Because,void,propensity,initiate,matrix,incoherent,interface,reduced,number,weak,points,thus,considerably,improving,plastic,deformation,ability,aged,by,In,addition,strengthening,mechanism,also,been,analyzed,It,revealed,that,L12,precipitate,contributed
AB值：
0.58182
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