To clarify the influence of the deformation texture on the mechanical properties,pure Mo plates were processed by various cross rolling procedures,and the relation among texture,microstructure and mechanical propertie...To clarify the influence of the deformation texture on the mechanical properties,pure Mo plates were processed by various cross rolling procedures,and the relation among texture,microstructure and mechanical properties was discussed.The results show that cross rolling of the Mo plates is beneficial for the formation of the rotated cube component,i.e.,{001}<110>.The corresponding orientation density exhibits a positive correlation with the total rolling deformation and the current-pass deformation.When the total deformation is 96%or greater,the Mo plates form a texture orientation dominated by{001}<110>,whereas theγ-fibre texture becomes weaker and the cube texture{100}<100>disappears completely.The presence of{001}<110>has great effects on the properties of cross-rolled Mo plates,which is beneficial for strength enhancement and plasticity reduction in both the rolling direction(RD)and the transverse direction(TD).展开更多
Deformation texture plays an important influence on the mechanical properties and the anisotropy over Mo-La alloy products.In this work,Mo-La plates prepared by powder metallurgy process are unidirectionally rolled an...Deformation texture plays an important influence on the mechanical properties and the anisotropy over Mo-La alloy products.In this work,Mo-La plates prepared by powder metallurgy process are unidirectionally rolled and annealed at various temperatures.And the texture,microstructure,mechanical properties,anisotropy and the correlation of Mo-La plates for the rolled and annealed states at different temperatures are analyzed and discussed.The results show that unidirectionally rolled Mo-La plates form grain orientation dominated by{001}<110>and the texture types are not changed during annealing.With the increase of annealing temperatures,the orientation density of texture is increased first and then decreased,which is related to the movement of dislocations and the orientation of new nucleation grains is affected by the original rolled texture.The anisotropy of Mo-La plates is significantly weakened after being annealed,which is caused by the combined effects of the annealing texture,grain size,grain shape and dislocations.展开更多
基金Project(2017YFB0306001)supported by the National Key R&D Program of ChinaProject(502221802)supported by the Innovation-Driven Project of Central South University,China。
文摘To clarify the influence of the deformation texture on the mechanical properties,pure Mo plates were processed by various cross rolling procedures,and the relation among texture,microstructure and mechanical properties was discussed.The results show that cross rolling of the Mo plates is beneficial for the formation of the rotated cube component,i.e.,{001}<110>.The corresponding orientation density exhibits a positive correlation with the total rolling deformation and the current-pass deformation.When the total deformation is 96%or greater,the Mo plates form a texture orientation dominated by{001}<110>,whereas theγ-fibre texture becomes weaker and the cube texture{100}<100>disappears completely.The presence of{001}<110>has great effects on the properties of cross-rolled Mo plates,which is beneficial for strength enhancement and plasticity reduction in both the rolling direction(RD)and the transverse direction(TD).
基金This work was financially supported by the National Key R&D Program of China(Grant No.2017YFB0306001)the Innovation-Driven Project of Central South University(Grant No.502221802).
文摘Deformation texture plays an important influence on the mechanical properties and the anisotropy over Mo-La alloy products.In this work,Mo-La plates prepared by powder metallurgy process are unidirectionally rolled and annealed at various temperatures.And the texture,microstructure,mechanical properties,anisotropy and the correlation of Mo-La plates for the rolled and annealed states at different temperatures are analyzed and discussed.The results show that unidirectionally rolled Mo-La plates form grain orientation dominated by{001}<110>and the texture types are not changed during annealing.With the increase of annealing temperatures,the orientation density of texture is increased first and then decreased,which is related to the movement of dislocations and the orientation of new nucleation grains is affected by the original rolled texture.The anisotropy of Mo-La plates is significantly weakened after being annealed,which is caused by the combined effects of the annealing texture,grain size,grain shape and dislocations.
