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7 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纵截面的微观形貌及EDS元素面分布

Fig.7 Microscopic morphologies (a, b) and EDS analyses (c-n) of the longitudinal section of the Ni-based single-crystal superalloy after reaction with the Al2O3-coated Si-based ceramic core (a) overall morphology of the superalloy longitudinal section (b) microstructure of the black rectangular area in Fig.7a (c-n) EDS mappings corresponding to Fig.7b