Abstract: Pure titanium was processed by two passes of ECAP with 135° die via route C at room temperature. The effect of ECAP on the texture of pure titanium was studied by X-ray diffraction (XRD). The original texture and ECAP deformed texture of pure titanium were measured and compared with those of pure titanium calculated by VPSC self-consistent theoretical model.The results show that the original pure titanium is composed of equiaxed grains and the grain boundary is clear. The maximum polar density of {0002} crystal plane is 2.6. The main texture is P1 texture, which is prone to cylinder slip and the compression twin system is easy to be activated. The original texture of pure titanium transforms into P texture after 1 pass of ECAP, and the C2 texture appears at the same time. After 2 passes of ECAP, the P texture disappears, and only the C2 texture exists. The texture calculated by the VPSC is almost similar with the experimental texture, which is prone to basal slip and tension twins are more likely to be activated.
杨西荣, 郝凤凤, 罗雷, 刘晓燕, 马炜杰, 王立元. 大角度ECAP变形模具制备纯钛的变形织构演化模拟[J]. 材料导报, 2020, 34(16): 16077-16082.
YANG Xirong, HAO Fengfeng, LUO Lei, LIU Xiaoyan, MA Weijie, WANG Liyuan. Simulation of Deformation Texture Evolution of Pure Titanium Prepared by Large Angle ECAP Deformation Die. Materials Reports, 2020, 34(16): 16077-16082.
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2020, Vol. 34 
