直接包套轧制铸态Ti-46Al-8Nb合金的组织特征及热变形机制
李天瑞1, 刘国怀1(), 于少霞2, 王文娟2, 张风奕2, 彭全义2, 王昭东1
Microstructure Evolution and Deformation Mechanisms by Direct Hot-Pack Rolling for As-Cast Ti-46Al-8Nb Alloys
LI Tianrui1, LIU Guohuai1(), YU Shaoxia2, WANG Wenjuan2, ZHANG Fengyi2, PENG Quanyi2, WANG Zhaodong1

图1. Ti-46Al-8Nb合金在不同真应变(ε)下的热加工图

Fig.1. Hot processing maps of Ti-46Al-8Nb alloys at ε=0.1 (a), ε=0.2 (b), ε=0.3 (c), ε=0.4 (d) and ε=0.5 (e) (ε—true strain, ε˙—strain rate, T—deformation temperature; The contour line shows power dissipation efficiency (η) and gray regions correspond to the instability regions; Regions 1~3 show different deformation mechanisms in the safe regions)