DZ445镍基高温合金高温长时间氧化形成的多层膜结构

刘来娣, 丁彪, 任维丽, 钟云波, 王晖, 王秋良

Multilayer Structure of DZ445 Ni-Based Superalloy Formed by Long Time Oxidation at High Temperature

LIU Laidi, DING Biao, REN Weili, ZHONG Yunbo, WANG Hui, WANG Qiuliang

表2 DZ445镍基高温合金在900℃氧化500 h后表面氧化膜不同区域的元素分布 (atomic fraction / %)

Table 2 Elemental compositions of the oxidation scales of DZ445 Ni-based superalloy oxidized at 900oC for 500 h by EDS

Area O Al Cr Ni Ti Ta Co A 61.83 2.04 17.00 11.32 5.94 0.08 1.79 B 60.28 25.25 4.40 7.96 1.08 0.03 1.00