典型文献
A quantitative study on planar mechanical anisotropy of a Mg-2Zn-1Ca alloy
文献摘要:
A TD-tilted basal texture in Mg alloys often generates a strong planar mechanical anisotropy.Unfortu-nately,there has been not a quantitative study on this issue.In the present study,the mechanisms for the anisotropy of tensile yield strength in RD-TD plane were quantitatively studied for a Mg-2Zn-1Ca al-loy with different grain sizes and textures.Here,RD and TD refer to the rolling direction and transverse direction of the plate.The results show that there is a strong planar yield anisotropy(~24±5 MPa),re-gardless of grain size,while this yield anisotropy is absent in texture with a circular distribution of basal poles.The examination of microstructure and X-ray diffraction analysis reveals that,beside basal slip as the predominant mode under both RD-tension and TD-tension,prismatic slip in RD-tension and both prismatic slip and extension twinning in TD-tension are also important.The parameters of Hall-Petch re-lation are also used to further analyze the mechanism for yield anisotropy.The changeable intercept,σ0,and invariant Hall-Petch slope,k,between RD-tension and TD-tension are rationalized accounting for this anisotropy.The reasons why there are different σ0 and similar k between TD-tension and RD-tension are quantitively discussed.At last,a texture design for decreasing the planar yield anisotropy is given.
文献关键词:
中图分类号:
作者姓名:
Xinde Huang;Yunchang Xin;Yu Cao;Guangjie Huang;Wei Li
作者机构:
School of Materials Science and Engineering Chongqing University,Chongqing 400044,China;Key Laboratory for Light-weight Materials,Nanjing Tech University,Nanjing 210009,China
文献出处:
引用格式:
[1]Xinde Huang;Yunchang Xin;Yu Cao;Guangjie Huang;Wei Li-.A quantitative study on planar mechanical anisotropy of a Mg-2Zn-1Ca alloy)[J].材料科学技术(英文版),2022(14):30-48
A类:
gardless
B类:
study,planar,mechanical,anisotropy,Mg,2Zn,1Ca,TD,tilted,basal,alloys,often,generates,strong,Unfortu,nately,there,has,been,not,this,issue,In,present,mechanisms,tensile,yield,strength,RD,plane,were,quantitatively,studied,different,grain,sizes,textures,Here,refer,rolling,direction,transverse,plate,results,show,that,while,absent,circular,distribution,poles,examination,microstructure,ray,diffraction,analysis,reveals,beside,slip,predominant,mode,under,both,prismatic,extension,twinning,are,also,important,parameters,Hall,Petch,lation,used,further,analyze,changeable,intercept,invariant,slope,between,rationalized,accounting,reasons,why,similar,quantitively,discussed,At,last,design,decreasing,given
AB值:
0.490208
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