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11 ε/ε″相周围的γ′相“贫化区”

Fig.11 The γ′ phase“depleted area”around the ε/ε″ phase