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燃气涡轮高温台金部件在600～850℃之间由熔盐引起的加速腐蚀(低温热腐蚀)现象,是当前热腐蚀研究中的一个重要问题,一般舰船及一些工业涡轮的热腐蚀多属此类。关于镍基合金的加速腐蚀机制,目前已有许多研究,但尚未获得很好的解释。本工作对纯镍在705℃几种不同条件下的熔盐腐蚀行为进行了研究,并对镍的加速腐蚀机制进行了探讨。
Accelerated corrosion (low temperature hot corrosion) caused by molten salt between 600 ℃ and 850 ℃ in the gas turbine high-temperature Taijin component is an important issue in the current hot corrosion research. Most of the hot corrosion of ships and some industrial turbines This class. There have been many studies on the accelerated corrosion mechanism of nickel-based alloys, but no good explanation has been given yet. In this work, the molten salt corrosion behavior of pure nickel under several different conditions at 705 ℃ was studied, and the mechanism of accelerated corrosion of nickel was also discussed.