热变形后<b>Ni-30%Fe</b>模型合金中奥氏体的亚动态软化行为

热变形后Ni-30%Fe模型合金中奥氏体的亚动态软化行为

陈文雄¹^,², 胡宝佳¹^,², 贾春妮¹^,², 郑成武¹^,²(

), 李殿中¹^,²

Post-Dynamic Softening of Austenite in a Ni-30%Fe Model Alloy After Hot Deformation

CHEN Wenxiong¹^,², HU Baojia¹^,², JIA Chunni¹^,², ZHENG Chengwu¹^,²(

), LI Dianzhong¹^,²

图8. 在T=900 ℃、 $ε ˙$ =0.001 s^-1 条件下变形至ε=0.3的Ni-30%Fe合金在后续保温不同时间过程中的TEM像

Fig.8. TEM images of the Ni-30%Fe alloy at different annealing time of 0 s (a), 2 s (b), 10 s (c) and 60 s (d) after the hot deformation under T=900 ℃ and $ε ˙$ =0.001 s^-1at a strain of 0.3