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6. GH4975合金在0.1 s-1应变速率和不同温度下变形后的微观组织

Fig.6. Effect of deformation temperature on the microstructures of GH4975 superalloy under the strain rate of 0.1 s-1(a) 1070 ℃ (b) 1100 ℃ (c) 1130 ℃ (d) 1150 ℃ (e) 1180 ℃ (f) 1220 ℃