材料科学
电子背散射衍射
微观结构
合金
退火(玻璃)
热机械加工
体积分数
钛合金
冶金
复合材料
变形(气象学)
热的
钛
衍射
光学
热力学
物理
作者
Min Qi,Yingjie Ma,Jie Yang,Yandi Jia,Hanbo Weng,Sensen Huang,Ruixue Zhang,Jianke Qiu,Jiafeng Lei,Rui Yang
标识
DOI:10.1016/j.matchar.2022.111884
摘要
Mo element significantly affects the microtexture evolution of α in α + β titanium alloys. In this study, the evolution of microtexture during thermomechanical processing in Ti-6Al-2Sn-4Zr-2Mo (Ti6242) and Ti-6Al-2Sn-4Zr-6Mo (Ti6246) alloy was investigated. The β annealing treatments and α + β solution-treatments were conducted to display the microstructure characteristics before thermal deformation. Then, the thermal compression in the (α + β) phase region was applied to trace the evolution of lamellae orientation in conjunction with the electron backscatter diffraction. The results show a strong prior colony microtexture before thermal deformation. {10−12} and {10−11} twins are activated in Ti6246 during thermal compression, which strongly weakens the microtexture of the prior α colony. Besides, the lower volume fraction of the primary α phase, the smaller α colony, the thinner lamellae and the lower aspect ratio of α grains contribute to weak prior colony microtexture in Ti6246 alloy. This study shows the effect of Mo content on the microtexture evolution during thermomechanical processing.
科研通智能强力驱动
Strongly Powered by AbleSci AI