Ti6246钛合金 β → α 相变中晶界 α 相生长行为及其对微织构的影响

齐敏, 王倩, 马英杰, 曹贺萌, 黄森森, 雷家峰, 杨锐

Growth Behavior of Grain Boundary α Phase and Its Effect on the Microtexture During β → α Phase Transformation in Ti6246 Titanium Alloys

QI Min, WANG Qian, MA Yingjie, CAO Hemeng, HUANG Sensen, LEI Jiafeng, YANG Riu

表1 Ti6246合金由β单相区炉冷至两相区不同温度后转变为αGB的β相晶界类型分布 (%)

Table 1 Fractions of the β phase grain boundary transformed to αGB in Ti6246 alloy after furnace cooling from β phase field to different temperatures

Temperature / oC Ⅰ Ⅱ Ⅲ Ⅳ HAGB LAGB (< 10o) 920 3.3 20.0 16.7 11.7 48.3 0 880 5.0 13.3 01.7 08.3 71.7 0 840 3.3 08.3 01.7 08.3 76.7 1.7