典型文献
Ultrastrong and ductile BCC high-entropy alloys with low-density via dislocation regulation and nanoprecipitates
文献摘要：
The high strength is a typical advantage of body-centered-cubic high-entropy alloys(BCC-HEAs).How-ever,brittleness and weak strain-hardening ability are still their Achilles'heel.Here,extraordinary strength together with good tensile ductility are achieved in(Zr0.5Ti0.35Nb0.15)100-xAlx alloys(at.％,x=10 and 20)at room temperature.Relatively low densities of less than 6 g/cm3 are exhibited in these alloys.Designing nanoprecipitates and diversifying dislocation motions are the keys to achieving such salient breakthrough.It is worth noting that the tensile strength of 1.8 GPa in(Zr0.5Ti0.35Nb0.15)80Al20 alloy is a record-high value known in reported BCC-HEAs,as well as a tensile strain over 8％.Furthermore,the maximum strain of～25％in(Zr0.5Ti0.35Nb0.15)90Al10 alloy can challenge existing limit value,and is ac-companied with a tensile strength of 1.2 GPa.The current work does not only provide novel ultra-strong and tough structural materials with low density,but also sheds new light on designing BCC-HEAs with attractive performances and strain-hardening ability.
文献关键词：
中图分类号：
作者姓名：
Xuehui Yan;Peter K.Liaw;Yong Zhang
作者机构：
Beijing Advanced Innovation Center of Materials Genome Engineering,State Key Laboratory for Advanced Metals and Materials,University of Science and Technology Beijing,Beijing 100083,China;Department of Materials Science and Engineering,The University of Tennessee,Knoxville,TN 37996,United States of America
文献出处：
引用格式：
[1]Xuehui Yan;Peter K.Liaw;Yong Zhang-.Ultrastrong and ductile BCC high-entropy alloys with low-density via dislocation regulation and nanoprecipitates)[J].材料科学技术（英文版）,2022(15):109-116
A类：
Ultrastrong,35Nb0,80Al20,90Al10
B类：
ductile,BCC,high,entropy,alloys,low,density,via,dislocation,regulation,nanoprecipitates,strength,typical,advantage,body,centered,cubic,HEAs,How,ever,brittleness,weak,strain,hardening,ability,are,still,their,Achilles,heel,Here,extraordinary,together,good,tensile,ductility,achieved,Zr0,5Ti0,xAlx,room,temperature,Relatively,densities,less,than,cm3,exhibited,these,Designing,diversifying,motions,keys,achieving,such,salient,breakthrough,It,worth,noting,that,GPa,record,value,known,reported,well,over,Furthermore,maximum,can,challenge,existing,limit,companied,current,work,does,only,provide,novel,ultra,tough,structural,materials,but,also,sheds,new,light,designing,attractive,performances
AB值：
0.563697
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