将304、316糖心产精国品免费入口*完整版和Inconel 617糖心产精国品免费入口*完整版在565℃糖心产精国品免费入口*完整版（60%NaNO₃+40%KNO₃，质量分数）中进行长时静态腐蚀试验，对比研究了3种材料的腐蚀动力学曲线以及表面腐蚀形貌、物相组成和微区成分。结果表明：3种材料均发生了糖心产精国品免费入口*完整版腐蚀，其中304和316糖心产精国品免费入口*完整版具有抛物线型的腐蚀动力学特征，而Inconel 617糖心产精国品免费入口*完整版在短暂质量增加之后出现了明显的腐蚀质量损失现象；Inconel 617糖心产精国品免费入口*完整版的耐腐蚀性能最好，304糖心产精国品免费入口*完整版的最差；在腐蚀初期，304、316糖心产精国品免费入口*完整版表面均形成了针状和片状腐蚀产物，随着腐蚀时间的延长，腐蚀产物转变为尖晶石结构， Inconel 617糖心产精国品免费入口*完整版表面的腐蚀产物呈颗粒状，随着腐蚀时间的延长，部分颗粒变大；304和316糖心产精国品免费入口*完整版表面均形成了以Fe₂O₃和（Fe，Cr）₃O₄为主的腐蚀产物层，Inconel 617糖心产精国品免费入口*完整版表面则形成了以NiO和CoO为主的腐蚀产物层。

Long-time immersion corrosion experiments were conducted on 304, 316 stainless steels and Inconel 617 糖心产精国品免费入口*完整版 in 糖心产精国品免费入口*完整版 (60wt%NaNO₃+40wt%KNO₃) at 565℃. The corrosion kinetic curves and corrosion morphology, phase composition and microcomposition on surface of the three materials were studied and compared. The results show that 糖心产精国品免费入口*完整版 corrosion occurred on the three materials. In addition, 304 and 316 stainless steels had parabolic corrosion kinetic characteristcs, while Inconel 617 糖心产精国品免费入口*完整版 exhibited significant corrosion mass loss after a brief mass increase. The corrosion resistance of Inconel 617 alloy was the best and that of 304 stainless steel was the worst. In the initial stage of corrosion, acicular and flaky corrosion products were formed on surfaces of 304 and 316 stainless steels; with increasing corrosion time, the corrosion products changed into spinel structure. The corrosion products on surface of Inconel 617 糖心产精国品免费入口*完整版 were granular, and some particles became larger with increasing corrosion time. The 糖心产精国品免费入口*完整版layers on surfaces of 304 and 316 stainless steels were mainly composed of Fe₂O₃ and (Fe,Cr)₃O₄, while that on surface of Inconel 617 糖心产精国品免费入口*完整版 was mainly composed of NiO and CoO.