利用热重试验研究了表面沉积有ZnCl12和ZnCl2+KCl盐膜的20钢在450℃流动氧气中的腐蚀行为。20钢在单纯氧气中具有很低的氧化增重，涂盐条件下加速腐蚀，氧化层明显变厚，而ZnCl2+KCl比在单一ZnCl2盐膜下腐蚀更为严重，在氧化膜／合金界面均检测到金属氯化物，在基体局部区域还出现球状的含氯腐蚀产物，讨论了合金在盐膜下的加速腐蚀机理。
The corrosion behavior of 20 steel beneath ZnCl2 and ZnCl2 + KCl deposits in flowing O2 was studied by means of thermogravimetric experiment. 20 steel was oxidized very slowly in pure O2, whereas a significantly accelerated corrosion was observed in the presence of salt deposition, and the corrosion was more serious in ZnCl2 + KCl mixture than in ZnCl2 . Iron chloride was also detected at the interface of oxide and metal matrix. The effect of the salts on the corrosion mechanism was discussed.
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