Nb-TiAl合金的高温变形行为及其板材的性能
周海涛, 侯湘武, 汪彦博, 肖旅, 袁勇, 孙京丽

High-temperature Deformation Behavior and Properties of High Nb Containing TiAl Alloy
ZHOU Haitao, HOU Xiangwu, WANG Yanbo, XIAO Lv, YUAN Yong, SUN Jingli
图5 锻态Ti-44Al-8Nb-0.2W-0.2B-Y合金在1250℃/0.1 s-1条件下压缩不同应变量后的变形组织
Fig.5 Microstructure of as-forged Ti-44Al-8Nb-0.2W-0.2B-Y alloy deformed at 1250℃ with a strain rate of 0.1 s-1under engineering strain of (a) ε=25%, (b) ε=25%+33% and (c) ε=50%