The aim of this study is to investigate the high-temperature corrosion behavior of 304L stainless steel in the environment of various molten salt mixtures in the temperature range of 550–850°C. Weight change measurement has been done and characterization of corroded specimen was carried out using XRD, SEM/EDS techniques. Findings indicate that high chloride concentration salts affect the corrosion resistance adversely. The protective behavior of Cr₂O₃ layer deteriorated and its passivation is hindered at higher temperature owing to the chlorination-oxidation process. Fe₂O₃ and (Fe, Cr)_xO_y were found to be the major phases in the corrosion product. The salts were found to significantly affect the corrosion of 304L stainless steel in the following order: K₂SO₄ + 60% NaCl > Na₂SO₄ + 50% NaCl > 40% K₂SO₄ + 40% Na₂SO₄ + 10% KCl + 10% NaCl > Na₂SO₄ + 60% V₂O₅ > Air.

本研究的目的是研究550L至850°C温度范围内各种熔融盐混合物环境下304L不锈钢的高温腐蚀行为。已经进行了重量变化测量，并使用XRD，SEM / EDS技术对腐蚀样品进行了表征。结果表明，高氯化物浓度的盐会对耐腐蚀性产生不利影响。Cr ₂ O ₃层的保护行为由于氯化-氧化过程而变高，并且在较高的温度下其钝化受到阻碍。Fe ₂ O ₃和（Fe，Cr）_x O _y被发现是腐蚀产物的主要相。发现这些盐按以下顺序显着影响304L不锈钢的腐蚀：K ₂ SO ₄  + 60％NaCl> Na ₂ SO ₄  + 50％NaCl> 40％K ₂ SO ₄  + 40％Na ₂ SO ₄  + 10％KCl + 10％NaCl> Na ₂ SO ₄  + 60％V ₂ O ₅  >空气。