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3 DZ445镍基高温合金在900℃氧化不同时间后的氧化膜各层元素分布的EDS分析 (atomic fraction / %)

Table 3 Elemental compositions of different layers in the oxidation scales of DZ445 Ni-based superalloy oxidized at 900oC for different time by EDS

Oxide layer Time / h Al Cr Ta Ti Ni O Co P1 300 1.11 32.03 0.00 2.05 1.77 62.64 0.40 500 3.32 19.35 0.18 3.59 10.65 58.36 4.56 915 0.69 28.19 0.06 1.60 5.38 62.54 1.54 1100 3.30 21.54 0.17 2.31 10.64 57.94 4.09 1500 1.76 16.81 0.12 7.12 14.59 55.35 4.24 1800 5.43 16.38 0.18 4.59 8.49 61.37 3.57 2200 2.69 20.75 0.07 1.52 11.36 58.75 4.87 2600 2.20 21.02 0.22 1.80 10.29 62.13 2.34 P2 300 4.58 11.30 6.14 8.11 1.13 68.61 0.15 500 2.63 10.42 6.49 7.64 5.98 65.13 1.72 915 1.09 6.72 9.37 8.36 4.51 69.75 0.23 1100 4.22 6.69 7.29 6.79 3.45 71.07 0.50 1500 1.36 10.97 6.95 8.65 7.00 63.13 1.96 1800 2.12 9.64 7.54 8.21 3.28 68.16 1.05 2200 1.53 8.89 7.14 8.03 4.85 68.33 1.23 2600 0.73 6.53 9.26 8.58 3.75 70.90 0.25 P3 300 - - - - - - - 500 24.43 3.55 0.82 1.21 11.94 56.75 1.32 915 14.27 3.04 1.14 1.03 15.43 64.82 0.28 1100 27.66 1.46 0.38 0.44 9.71 59.57 0.77 1500 23.14 3.90 0.21 0.28 17.83 53.29 1.34 1800 22.94 4.47 0.83 1.27 10.50 58.72 1.27 2200 21.70 4.67 0.20 0.62 15.97 55.44 1.40 2600 20.97 3.02 0.49 0.42 12.67 61.35 1.07 P4 300 36.55 0.77 0.18 0.24 2.62 59.12 0.51 500 33.37 2.30 0.32 0.41 3.14 59.47 0.99 915 34.07 1.97 0.19 0.30 4.56 58.05 0.88 1100 35.85 1.18 0.15 1.54 0.79 60.35 0.13 1500 35.53 1.52 0.06 0.29 3.90 57.92 0.78 1800 35.24 1.90 0.07 0.90 1.53 60.12 0.24 2200 33.48 1.30 0.11 0.57 4.41 59.45 0.69 2600 33.84 1.97 0.17 0.74 1.74 61.34 0.20