长期时效对低膨胀高温合金GH2909性能的影响

徐雄, 李钊, 万志鹏, 韦康, 王涛, 张新房

Effect of Long-term Aging on Properties of Low Expansion Superalloy GH2909

XU Xiong, LI Zhao, WAN Zhipeng, WEI Kang, WANG Tao, ZHANG Xinfang

图10 合金在650℃长期时效2000 h后室温拉伸断口的纵剖SEM形貌

Fig.10 SEM morphology longitudinal section at room temperature after long-term aging at 650℃ for 2000 h