304和316H不锈钢在LiF-NaF-KF熔盐中的腐蚀行为研究

刘辉,邱玮,冷滨,俞国军

Corrosion Behavior of 304 and 316H Stainless Steels in Molten LiF-NaF-KF

Hui LIU,Wei QIU,Bin LENG,Guojun YU

表3 304和316H不锈钢腐蚀后内部各区域EDS元素分析 (括号内的数字对应图4中的相应区域)

Table 3 EDS analysis results of different areas of 304 and 316H stainless steels after corrosion (the numbers in the brackets correspond to the reference signs of the areas in Fig.4) (mass fraction / %)

Position N Al Cr Fe Ni Mo 304 Unaffected zone (1) 0 0.1 18.9 72.4 8.6 0 304 Precipitation zone (dark) (2) 5.9 0.2 18.6 67.2 8 0.1 304 Corrosion zone (gray) (3) 0 0.1 2.2 85.2 12.2 0.3 316H Unaffected zone (4) 0 0 17.5 69.9 10.5 2.1 316H Precipitation zone (dark) (5) 3.4 0.7 17.7 65.4 10.2 2.6 316H Corrosion zone (gray) (6) 0 0 1.6 81.5 16.2 0.7