典型文献
Improving the tensile properties of extruded Mg-Ga alloy by ageing treatment
文献摘要：
A hot-extruded Mg-5Ga alloy was subjected to ageing treatment at 150℃,190℃and 230℃.The micro-structures and mechanical properties of the extruded and aged alloy were examined in this study.Microstructure examinations suggested that particle-shaped and rod-shaped Mg5Ga2 were precipitated in the alloy after peak ageing treatment.The extruded alloy showed the yield strength,ultimate tensile strength and elongation to fracture of 157.6 MPa,248.6 MPa and 17.5％,respectively.After peak ageing,the yield strength and ultimate tensile strength can be enhanced by as much as 15.7％and 8.6％reaching 182.3 MPa and 270 MPa,respectively.The improvement of the tensile strengths is mainly attributed to the enhanced precipitation strengthening by newly formed fine Mg5Ga2 precipitates.The ductility of the alloy was slightly increased by peak ageing at low temperatures(150℃and 190℃),but remarkably decreased by peak ageing at high temperature(230℃)due to the formation of coarsened Mg5Ga2 particles which easily initiated the cracks during tensile deformation.
文献关键词：
中图分类号：
作者姓名：
Donglei He;Hao Gong;Ziyue Zhang;Yang Zheng;Hu Zhang;Yan Li
作者机构：
School of Materials Science and Engineering,Beihang University,Beijing,100191,China;Key Laboratory of Aerospace Advanced Materials and Performance(Beihang University),Ministry of Education,Beijing,100191,China;School of Aeronautics and Astronautics,Tiangong University,Tianjin,300387,China;Beihang Hangzhou Innovation Institute Yuhang Beihang University,Hangzhou,310023,China;Beijing Advanced Innovation Centre for Biomedical Engineering Beihang University,Beijing,100191,China
文献出处：
引用格式：
[1]Donglei He;Hao Gong;Ziyue Zhang;Yang Zheng;Hu Zhang;Yan Li-.Improving the tensile properties of extruded Mg-Ga alloy by ageing treatment)[J].自然科学进展·国际材料（英文）,2022(06):724-731
A类：
Mg5Ga2
B类：
Improving,tensile,properties,extruded,alloy,by,ageing,treatment,hot,was,subjected,micro,structures,mechanical,aged,were,examined,this,study,Microstructure,examinations,suggested,that,shaped,rod,precipitated,after,peak,showed,yield,ultimate,elongation,fracture,respectively,After,can,be,enhanced,much,reaching,improvement,strengths,mainly,attributed,precipitation,strengthening,newly,formed,fine,precipitates,ductility,slightly,increased,low,temperatures,remarkably,decreased,high,due,coarsened,particles,which,easily,initiated,cracks,during,deformation
AB值：
0.472666
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