Al2O3 涂层对硅基陶瓷型芯与镍基单晶高温合金界面反应的影响

何家宝, 王亮, 张朝威, 邹明科, 孟杰, 王新广, 姜肃猛, 周亦胄, 孙晓峰

Effect of Al2O3 Coating on Interface Reaction Between Si-Based Ceramic Core and Ni-Based Single-Crystal Superalloy

HE Jiabao, WANG Liang, ZHANG Chaowei, ZOU Mingke, MENG Jie, WANG Xinguang, JIANG Sumeng, ZHOU Yizhou, SUN Xiaofeng

图6 镍基单晶高温合金与施加Al2O3涂层的硅基陶瓷型芯反应后合金底部微观形貌SEM像及EDS元素面分布

Fig.6 Bottom SEM images (a-c) and EDS analyses (d-o) of the Ni-based single-crystal superalloy after reaction with the Al2O3-coated Si-based ceramic core (a) overall morphology (b) microstructure of the black rectangular area in Fig.6a (c) microstructure of typical area 2 in Fig.6b (d-o) EDS mappings corresponding to Fig.6b