热处理对激光选区熔化GH4099镍基高温合金900 ℃下(75%Na2SO4 + 25%NaCl)热腐蚀行为的影响

白英雄, 王艳丽, 李相伟, 吴泽峰, 张书彦

Effect of Heat Treatment on Hot Corrosion Behavior of Selective Laser Melted GH4099 Nickel-based Superalloy Beneath (75%Na2SO4 + 25%NaCl) Deposits in Air at 900 oC

BAI Yingxiong, WANG Yanli, LI Xiangwei, WU Zefeng, ZHANG Shuyan

表1 图5中标记点处EDS成分分析结果 (mass fraction / %)

Table 1 EDS determined compositions of the marked points in Fig.5

Position O Al Ti Cr Co Ni Mo W A 13.46 14.05 0.36 8.49 4.64 48.92 3.84 6.24 B 34.51 8.27 6.29 33.74 2.71 13.85 0.14 0.50 C 44.59 0.26 47.61 4.05 0.24 1.69 0.05 1.50 D 3.73 0.09 2.65 6.30 74.70 6.12 6.41 3.73 E 15.03 0.09 0.05 8.03 3.91 72.50 0.00 0.39 F 26.46 0.12 0.11 44.21 17.34 11.62 0.00 0.14