Ti551合金的热变形行为及热加工图构建

尹建年, 马英杰, 杨锐, 雷家峰, 齐敏, 周丽

Hot Deformation Behavior and Hot Processing Map Construction of the Ti551 Alloy

YIN Jiannian, MA Yingjie, YANG Rui, LEI Jiafeng, QI Min, ZHOU Li

表1 不同真应变时的材料常数

Table 1 Material constants at different true strains (ε)

ε Q / (J·mol-1) lnA n α / MPa-1 0.10 155144.74 12.0671 2.8780 0.01426 0.15 151640.37 11.8166 2.9379 0.01389 0.20 145891.04 11.4170 2.9533 0.01375 0.25 143261.63 11.0492 2.9686 0.01374 0.30 140042.85 10.7365 2.9704 0.01373 0.35 138616.43 10.6623 2.9957 0.01372 0.40 135233.88 10.3218 2.9992 0.01371 0.45 132736.45 10.0940 3.0369 0.01372 0.50 129037.86 9.7158 3.0727 0.01375 0.55 125617.22 9.3848 3.0967 0.01374 0.60 121303.17 8.9610 3.1285 0.01372 0.65 119952.93 8.8574 3.1801 0.01364