典型文献
Microstructure evolution and mechanical behavior of Ni-rich Ni-Mn-Ga alloys under compressive and tensile stresses
文献摘要：
The microstructure evolution and mechanical behavior in directionally solidified Ni-rich Ni-Mn-Ga alloys with nominal compositions of Ni58Mn25Ga17 and Ni60Mn25Ga15 under compressive and tensile stresses have been investigated.The composition distribution shows the element Ni segregates in gamma phase,while elements Mn and Ga segregate in martensite phase.Furthermore,the microstructure orientation examined by electron backscatter diffraction(EBSD)indicates that beta phase has a preferred growth orientation of(001)A in Ni58Mn25Ga17 alloys,while gamma phase has a preferred growth orientation of(001)γ in Ni60Mn25Ga15 alloys.The fracture morphology suggests that the existence of ductile γ phase can reduce the crack propagation and promote fracture strain,particularly in the Ni60Mn25Ga15 alloys.Fi-nally,Schmid factor and deformation gradient tensor were calculated to well explain the crystallographic evolution during the detwinning under compressive and tensile stresses.The present findings not only elucidate the mechanism of y phase on the mechanical behavior of Ni-rich Ni-Mn-Ga alloys,but also shed light on the composition design of high temperature Ni-Mn-Ga shape memory alloys.
文献关键词：
中图分类号：
作者姓名：
Yue Wang;Siyuan Yang;Ting Zhou;Long Hou;Lansong Ba;Yves Fautrelle;Zhongming Ren;Yanyan Zhu;Zongbin Li;Xi Li
作者机构：
State Key Laboratory of Advanced Special Steels,Shanghai University,Shanghai 200072,China;EPM-Madylam,ENSHMG BP 38402St Martin d'Heres Cedex,France;School of Materials Science and Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Key Laboratory for Anisotropy and Texture of Materials,Northeastern University,Shenyang 110819,China;Shanghai Key Lab of Advanced High-temperature Materials and Precision Forming,Shanghai Jiao Tong University,Shanghai 200240,China
文献出处：
引用格式：
[1]Yue Wang;Siyuan Yang;Ting Zhou;Long Hou;Lansong Ba;Yves Fautrelle;Zhongming Ren;Yanyan Zhu;Zongbin Li;Xi Li-.Microstructure evolution and mechanical behavior of Ni-rich Ni-Mn-Ga alloys under compressive and tensile stresses)[J].材料科学技术（英文版）,2022(02):113-122
A类：
Ni58Mn25Ga17,Ni60Mn25Ga15,detwinning
B类：
Microstructure,evolution,mechanical,behavior,rich,alloys,under,compressive,tensile,stresses,microstructure,directionally,solidified,nominal,compositions,have,been,investigated,distribution,shows,segregates,gamma,phase,while,elements,martensite,Furthermore,orientation,examined,by,electron,backscatter,diffraction,EBSD,indicates,that,beta,preferred,growth,fracture,morphology,suggests,existence,ductile,can,reduce,crack,propagation,promote,strain,particularly,Fi,Schmid,deformation,gradient,tensor,were,calculated,well,explain,crystallographic,during,present,findings,not,only,elucidate,mechanism,also,shed,light,design,high,temperature,shape,memory
AB值：
0.466325
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