间隙元素O对 β 型Ti-15Mo合金超低温力学性能的影响

戴进财, 闵小华, 辛社伟, 刘凤金

Effect of Interstitial Element O on Cryogenic Mechanical Properties in β-Type Ti-15Mo Alloy

DAI Jincai, MIN Xiaohua, XIN Shewei, LIU Fengjin

图6 0.4O合金于20 K下拉伸后断口附近的变形组织

Fig.6 Deformation microstructures adjacent to fracture region in 0.4O alloy deformed at 20 K (The perpendicular direction is parallel to the tensile direction, RD—rolling direction) (a, b) BSE images (c) IPF and locally high magnified IPF (inset) (d) KAM map (e) misorientation profile along the line of the inset in Fig.6c