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9 轧态Ti-44Al-8Nb-0.2W-0.2B-Y合金的TEM组织
Fig.9 TEM analysis of the as-rolled Ti-44Al-8Nb-0.2W-0.2B-Y alloy: (a) typical microstructure with γ grains and α2/γ lamellar colonies, (b) γ grains with high-density dislocations, (c) α2/γ lamellar structure, (d) diffraction pattern of α2/γ lamellar, (e) γ twins and substructure in γ grain, (f) diffraction pattern of γ twins