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8 黑晶组织的微观形貌
Fig.8 Microstructure of black crystal