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5. GH4975合金在终应变0.8下的热加工图及不同变形区域的微观组织验证(阴影部分表示不稳定区域)

Fig.5. Processing map of GH4975 superalloy at the strain of 0.8 (Gray area represents instability region) and microstructure validation of different deformation region (Contour value is powder dissipation rate)