不同温度下DD10合金钎焊接头热腐蚀行为研究

赵欣宇, 刘恩泽, 张功, 赵媛, 宁礼奎, 信昕, 贾丹, 刘伟华, 谭政

Hot Corrosion Behavior of Brazed Joints of Single Crystal Ni-based DD10 Alloy Beneath Na2SO4 Deposit in Air at 850 and 900 ℃

ZHAO Xinyu, LIU Enze, ZHANG Gong, ZHAO Yuan, NING Likui, XIN Xin, JIA Dan, LIU Weihua, TAN Zheng

表1 图1b中各标记点处EPMA成分分析结果

Table 1 EPMA chemical composition analysis of the points marked in Fig.1b (atomic fraction / %)

Position Ni Co Cr Ti Al W Ta Mo C B A 3.39 1.92 26.57 3.97 - 22.82 1.87 2.79 0.20 36.48 B 4.26 3.55 38.55 2.53 - 13.06 0.81 1.97 0.12 35.17 C 2.54 3.88 54.70 0.68 - 3.05 - 0.86 - 34.30 D 58.74 15.93 4.74 11.58 3.03 1.19 3.58 0.09 0.85 0.28 E 2.99 3.87 52.89 0.84 - 3.62 0.12 0.85 - 34.81 F 2.28 1.12 1.08 27.82 - 4.95 16.60 0.02 46.12 - G 51.17 15.49 18.80 2.99 6.17 1.97 0.78 0.25 0.77 1.43