典型文献
Precipitate Characteristics and Mechanical Performance of Cast Mg-6RE-1Zn-xCa-0.3Zr(x=0 and 0.4 wt％)Alloys
文献摘要：
In this study,the Mg-4Y-1Gd-1Nd-xCa-1Zn-0.3Zr(x=0 and 0.4 wt％)cast alloys with low rare earth concentration were prepared in different routes of heat treatments,and their microstructures and mechanical properties were investigated.The Mg-4Y-1Gd-1 Nd-1Zn-0.4Ca-0.3Zr cast alloy with ultimate tensile strength(UTS)of 264±7.8 MPa,tensile yield strength(TYS)of 153±1.2 MPa and elongation to failure(EL)of 17.2±1.2％was successfully developed by appropriate heat treat-ment.The improved mechanical performance was attributed to the combined strengthening effects of fine grains,Mg24RE5,β',β1,γ'and LPSO phases.In the heat treatment process,cooling method of T4 treatment affected the microstructure,which consequently determined the mechanical properties air cooling,rather than water cooling,gave rise to the formation of y'phase in the alloy without Ca addition.However,Ca addition facilitated the formation of y'phase,and the y'phase precipi-tated in the alloy after T4 treatment either by water cooling or by air cooling,but the air cooling increased the number density ofγ'phase in comparison to the water cooling.Although the y'phase strengthened the studied alloys,the formation of γ'phase inhibited the precipitatition of β'and β1 phases in the following T6 treatment,and consequently reduced the strengthening effect of β'and β1 phases.The results showed that the mechanical performance of the studied alloys was largely determined by the precipitation of y'phase,which was regulated by the Ca addition and the cooling method of T4 treatment.
文献关键词：
中图分类号：
作者姓名：
Zijian Yu;Xi Xu;Baotian Du;Kang Shi;Ke Liu;Shubo Li;Xiuzhu Han;Tao Xiao;Wenbo Du
作者机构：
College of Materials Science and Engineering,Beijing University of Technology,Beijing 100124,China;Beijing Institute of Spacecraft System Engineering,Beijing 100094,China
文献出处：
引用格式：
[1]Zijian Yu;Xi Xu;Baotian Du;Kang Shi;Ke Liu;Shubo Li;Xiuzhu Han;Tao Xiao;Wenbo Du-.Precipitate Characteristics and Mechanical Performance of Cast Mg-6RE-1Zn-xCa-0.3Zr(x=0 and 0.4 wt％)Alloys)[J].金属学报（英文版）,2022(04):596-608
A类：
Precipitate,6RE,1Nd,TYS,Mg24RE5,precipitatition
B类：
Characteristics,Mechanical,Performance,Cast,1Zn,xCa,3Zr,wt,Alloys,In,this,study,4Y,1Gd,cast,alloys,rare,earth,concentration,were,prepared,different,routes,heat,treatments,their,microstructures,mechanical,properties,investigated,4Ca,ultimate,tensile,UTS,yield,elongation,failure,EL,was,successfully,developed,by,appropriate,improved,performance,attributed,combined,strengthening,effects,fine,grains,LPSO,phases,process,cooling,method,T4,affected,which,consequently,determined,air,rather,than,water,gave,rise,formation,without,addition,However,facilitated,after,either,increased,number,density,comparison,Although,strengthened,studied,inhibited,following,T6,reduced,results,showed,that,largely,precipitation,regulated
AB值：
0.426988
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
