TiAl合金表面Si-Al-Y共渗层的组织及高温抗氧化性能
李涌泉1, 谢发勤1, 吴向清1, 李轩1,2

Microstructure and High Temperature Oxidation Resistance of Si-Al-Y Co-deposition Coatings Prepared on TiAl alloy by Pack Cementation Process
LI Yong-Quan1, XIE Fa-Qin1, WU Xiang-Qing1, LI Xuan1,2
图1 1050℃4 h所制备的Si-Al-Y共渗层的表面低倍a、表面高倍b、截面c和 中间层、内层及互扩散区高倍d的SEM照片
Fig.1 Surface morphology a, enlarged surface morphology b, cross-sectional BSE image c and enlarged micrograph of the middle layer, inner layer and inner diffusion zone d of Si-Al-Y co-deposited coating prepared at 1050℃ for 4 h