利用热重实验研究了纯Ni在600—800℃含少量气态ZnCl_2的氧气中的腐蚀,结果表明,随着实验温度的提高和氧气中ZnCl_2浓度的增加,材料的腐蚀明显加剧;700℃以上时,在动力学上出现减重现象,所有实验条件下皆形成疏松的层状腐蚀产物膜,依据热力学探讨了其腐蚀机制,认为加速腐蚀主要是由氧化、氯化的交替腐蚀所致,并受NiCl_2的挥发控制。 Thermal gravimetric experiments were conducted to study the corrosion of pure Ni in oxygen containing a small amount of gaseous ZnCl 2 at 600-800 ℃. The results show that the corrosion of the material is obviously aggravated with the increase of the experimental temperature and the concentration of ZnCl 2 in oxygen. When the temperature is above 700 ℃ , The phenomenon of weight loss occurred in kinetics. Under all experimental conditions, a loose layered corrosion product film was formed, and its corrosion mechanism was discussed based on thermodynamics. The accelerated corrosion was mainly caused by the alternating corrosion of oxidation and chlorination, Volatile Control of NiCl_2.