The mechanical properties and texture of AM60（Mg-6.0Al-0.3Mn,mass fraction %） and ZXM200（Mg-1.6Zn-0.5Ca-0.2Mn） Mg alloys subjected to multi-pass hot rolling were investigated.The finer recrystallized grains usuall...The mechanical properties and texture of AM60（Mg-6.0Al-0.3Mn,mass fraction %） and ZXM200（Mg-1.6Zn-0.5Ca-0.2Mn） Mg alloys subjected to multi-pass hot rolling were investigated.The finer recrystallized grains usually exhibit particular preferred orientations and then alter the total texture feature of rolled sheets.Ca solid solution into Mg matrix serves to the formation of texture component with c-axis rotated away from normal direction towards transverse direction and then weakens the overall texture intensity,resulting in a similar anisotropic characteristic to RE-containing Mg alloys.展开更多
The microstructural evolution and mechanical properties of AZ31 magnesium alloy processed by the interactive alternating forward extrusion at different loading displacements(h=3,6,9 mm)were investigated.Optical micros...The microstructural evolution and mechanical properties of AZ31 magnesium alloy processed by the interactive alternating forward extrusion at different loading displacements(h=3,6,9 mm)were investigated.Optical microscopy(OM)and electron backscatter diffraction(EBSD)were used to analyze the evolution of microstructure,and the mechanical behavior was clarified by tensile tests and scanning electron microscopy(SEM).The results show that continuous dynamic recrystallization(CDRX)and discontinuous dynamic recrystallization(DDRX)can achieve grain refinement jointly in interactive alternating forward extrusion.With the decrease of the loading displacement h,the proportion of recrystallization increases from 23.4%to 66.7%.The fiber texture gradually tilts to the extrusion direction(ED),and the grain orientation randomization of DDRX further weakens the fiber texture intensity.When h=3 mm,the ultimate tensile strength(UTS)is 249.1 MPa and the elongation can reach 29.4%.展开更多
基金Project(51204003)supported by the National Natural Science Foundation of ChinaProject(KJ2011A051)supported by the Scientific Research Foundation of Education Department of Anhui Province,China
文摘The mechanical properties and texture of AM60（Mg-6.0Al-0.3Mn,mass fraction %） and ZXM200（Mg-1.6Zn-0.5Ca-0.2Mn） Mg alloys subjected to multi-pass hot rolling were investigated.The finer recrystallized grains usually exhibit particular preferred orientations and then alter the total texture feature of rolled sheets.Ca solid solution into Mg matrix serves to the formation of texture component with c-axis rotated away from normal direction towards transverse direction and then weakens the overall texture intensity,resulting in a similar anisotropic characteristic to RE-containing Mg alloys.
基金supported by the National Natural Science Foundation of China (No.51975166)。
文摘The microstructural evolution and mechanical properties of AZ31 magnesium alloy processed by the interactive alternating forward extrusion at different loading displacements(h=3,6,9 mm)were investigated.Optical microscopy(OM)and electron backscatter diffraction(EBSD)were used to analyze the evolution of microstructure,and the mechanical behavior was clarified by tensile tests and scanning electron microscopy(SEM).The results show that continuous dynamic recrystallization(CDRX)and discontinuous dynamic recrystallization(DDRX)can achieve grain refinement jointly in interactive alternating forward extrusion.With the decrease of the loading displacement h,the proportion of recrystallization increases from 23.4%to 66.7%.The fiber texture gradually tilts to the extrusion direction(ED),and the grain orientation randomization of DDRX further weakens the fiber texture intensity.When h=3 mm,the ultimate tensile strength(UTS)is 249.1 MPa and the elongation can reach 29.4%.
