Fe基非晶涂层在Na2SO4 + K2SO4 和Na2SO4 +NaCl混合盐中的热腐蚀行为研究

张勇康, 翟海民, 李旭强, 李文生

Hot Corrosion Behavior of Fe-based Amorphous Coatings in Mixed Salts of Na2SO4 + K2SO4 and Na2SO4 + NaCl

ZHANG Yongkang, ZHAI Haimin, LI Xuqiang, LI Wensheng

表1 316L不锈钢和涂层热腐蚀90 h后的单位面积累积质量增重

Table 1 Cumulative mass gains per unit area of 316L stainless steel and Fe-based amorphous coating after hot corrosion for 90 h

Sample Temperature / oC Corrosion medium Cumulative mass gain per unit area / mg·μm-2 316L stainless steel 450 NaCl + 50%Na2SO4 5.56 450 K2SO4 + 50%Na2SO4 4.85 550 NaCl + 50%Na2SO4 8.24 550 K2SO4 + 50%Na2SO4 6.83 Coating 450 NaCl + 50%Na2SO4 1.60 450 K2SO4 + 50%Na2SO4 1.21 550 NaCl + 50%Na2SO4 3.92 550 K2SO4 + 50%Na2SO4 3.01