航空发动机热障涂层的<strong>CMAS</strong>腐蚀行为与防护方法

航空发动机热障涂层的CMAS腐蚀行为与防护方法

郭磊, 高远, 叶福兴, 张馨木

CMAS Corrosion Behavior and Protection Method of Thermal Barrier Coatings for Aeroengine

GUO Lei, GAO Yuan, YE Fuxing, ZHANG Xinmu

图3 CMAS作用下1250℃热处理4 h后镀Pt YSZ涂层的截面微观结构和Si元素EDS结果^[54]
(a) Pt film covered region (b) EDS Si mapping result of Fig.3a
(c) discontinuous Pt film covered region (d) EDS Si mapping result of Fig.3c

Fig.3 Cross-sectional images of YSZ coatings with Pt films after heat treatment at 1250^oC for 4 h with CMAS deposits^[54]