GH2909低膨胀高温合金热处理中的组织演变行为

李钊, 江河, 王涛, 付书红, 张勇

Microstructure Evolution of GH2909 Low Expansion Superalloy During Heat Treatment

LI Zhao, JIANG He, WANG Tao, FU Shuhong, ZHANG Yong

图12 GH2909合金热处理不同阶段萃取相分析结果

Fig.12 Micro-chemical phase analysis results for GH2909 alloy after different heat treatments (a) mass fraction of intermetallic compound phases (wi) (b) mass fraction of Si element in intermetallic compound phases account for the total mass of alloy (wi-Si)