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5. 不同变形状态下Ni-30%Fe 合金微观组织的EBSD像、局部取向差分布图及取向差角度分布曲线

Fig.5. EBSD maps (a, d), the corresponding local misorientation maps (b, e) and the angular distributions of the local misorientations (c, f) of the Ni-30%Fe alloy after the hot deformation under T=900 ℃, $ε ˙$ =0.001 s^-1with strains of 0.3 (a~c) and 0.8 (d~f) (The silver, green, blue, black and red lines in Figs.5a and d represent boundaries with 0.8°≤θ<2°, 2°≤θ<5°, 5°≤θ<15°, θ≥15° and ?3 twin boundaries, respectively. θ is misorientation angle of the boundary)
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