850 ℃涡轮盘用新型变形高温合金GH4975挤压棒材热变形规律研究
张勇1(), 李鑫旭1, 韦康1, 万志鹏1, 贾崇林1, 王涛1, 李钊1, 孙宇2, 梁红艳3
Hot Deformation Characteristics of Novel Wrought Superalloy GH4975 Extruded Rod Used for 850 ℃ Turbine Disc
ZHANG Yong1(), LI Xinxu1, WEI Kang1, WAN Zhipeng1, JIA Chonglin1, WANG Tao1, LI Zhao1, SUN Yu2, LIANG Hongyan3

图2. GH4975合金在不同变形条件下的真应力-真应变曲线

Fig.2. True stress-true strain curves of GH4975 superalloy obtained under deformation temperatures of 1070 ℃ (a), 1100 ℃ (b), 1130 ℃ (c), 1150 ℃ (d), 1180 ℃ (e) and 1220 ℃ (f) at different strain rates