典型文献
Synergetic deformation mechanism in hierarchical twinned high-entropy alloys
文献摘要：
The mechanical properties of crystalline materials can be efficiently optimized using a hierarchical twinned structure.Conventional deformation mechanisms for coherent E3 boundaries generally involve three basic models:cross-slip,partial dislocation step,and full dislocation step.In this study,we report a novel deformation mechanism that allows the co-existence of twin-separation,phase transformations,grain rotation,and cracking,around a triple junction of twin boundaries in a hierarchical twinned high-entropy alloy.The deformation mechanisms in the reference high-entropy alloy(Fe-30Mn-10Co-10Cr at.％)were investigated using LAADF-STEM.The triple junction of the hierarchical twinned structure gradually deformed during in-situ strain and showed mechanisms significantly different from that observed in the purely twinned structures.These new mechanisms are referred to as"novel synergetic deformation mech-anisms of hierarchical twin boundaries".Understanding the fundamental mechanisms of the hierarchical twin boundaries under deformation could assist the design of strong and ductile bulk materials with hierarchical twinned structure.
文献关键词：
中图分类号：
作者姓名：
Wenjun Lu;Jianjun Li
作者机构：
Department of Mechanical and Energy Engineering,Southern University of Science and Technology,Shenzhen 518055,China;Max-Planck-Institut für Eisenforschung,Max-Planck-Stra?e 1,Düsseldorf 40237,Germany;College of Mechanical and Electrical Engineering,Central South University,Changsha 410083,China
文献出处：
引用格式：
[1]Wenjun Lu;Jianjun Li-.Synergetic deformation mechanism in hierarchical twinned high-entropy alloys)[J].材料科学技术（英文版）,2022(07):80-88
A类：
LAADF
B类：
Synergetic,deformation,hierarchical,twinned,high,entropy,alloys,mechanical,properties,crystalline,materials,be,efficiently,optimized,using,Conventional,mechanisms,coherent,E3,boundaries,generally,involve,three,basic,models,cross,slip,partial,dislocation,step,full,In,this,study,report,novel,that,allows,existence,separation,phase,transformations,grain,rotation,cracking,around,triple,junction,reference,30Mn,10Co,10Cr,were,investigated,STEM,gradually,deformed,during,situ,strain,showed,significantly,different,from,observed,purely,structures,These,new,are,referred,synergetic,Understanding,fundamental,under,could,assist,design,strong,ductile,bulk
AB值：
0.532205
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