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对火电站锅炉过热器用钢钢研１０２、Ｔ９１、ＴＰ３４７进行了高温氧化及模拟煤燃烧时碱金属硫酸盐（Ｎａ２ＳＯ４Ｋ２ＳＯ４）沉积在金属表面而发生的热腐蚀进行了腐蚀动力学研究，并针对２００ＭＷ发电机组常用的１０２钢采用表面喷涂Ｃｒ３Ｃ２－ＮｉＣｒＡｌ金属陶瓷涂层以提高其热腐蚀抗力．结果表明，高温氧化性能ＴＰ３４７钢最好，氧化速率符合抛物线规律；而１０２钢的氧化速率几乎呈直线规律．热腐蚀实验中，３种整体材料腐蚀后的质量增加都接近直线规律，说明它们抗热腐蚀的性能都比较差，涂层能有效的隔离腐蚀介质，防止基体氧化和腐蚀
The corrosion kinetics of hot corrosion on the surface of the metal deposited on the surface of the steel used in the superheater of the thermal power plant boilers 102, T91 and TP347 during high temperature oxidation and simulated coal combustion was studied. And 200MW power generation The 102 steel used in the unit is coated with Cr3C2-NiCrAl cermet coating to improve its hot corrosion resistance. The results showed that TP347 steel had the best oxidation behavior at high temperature and the oxidation rate was consistent with the parabolic law. However, the oxidation rate of 102 steel was almost linear. In the hot corrosion test, the mass increase of the three kinds of monolithic materials after corrosion is close to the linear rule, which shows that their performance against hot corrosion is poor. The coating can effectively separate the corrosion medium and prevent the oxidation and corrosion of the matrix