氧含量对国产FeCrAl基合金长周期腐蚀性能的影响

高云霞, 何琨, 张瑞谦, 梁雪, 王先平, 方前锋

Effect of Dissolved Oxygen on Long-term Corrosion of Domestic FeCrAl Based Alloys in High Temperature and High Pressure Waters

GAO Yunxia, HE Kun, ZHANG Ruiqian, LIANG Xue, WANG Xianping, FANG Qianfeng

表1 不同溶解氧环境下腐蚀3000 h后M2合金表面氧化膜的能谱(EDS)点扫描结果 (mass fraction / %)

Table 1 EDS analysis results of M2 alloy after 3000 h immersion under different conditions of dissolved oxygen

Dissolved oxygen environments Fe Cr Al Mo Nb O SDO 68.81 12.79 2.80 1.64 0.61 13.35 DEO Outer layer 1# 70.08 1.94 0 0 0 27.98 Inner layer 2# 47.97 20.78 4.80 2.74 0.37 23.34 DO100 48.42 18.27 2.09 1.84 0.32 29.06