The low nickel austenitic stainless steel (LNiASS) is more economical than the conventional 300-series austenitic stainless steels as 60% (approx.) of the Ni is replaced by manganese; it exhibits similar mechanical properties but inferior corrosion resistance. In this work, low nickel austenitic stainless steel samples were coated with Ni-based metallic powders using a thermal spray coating technique. The microstructures, phase composition and properties of coatings were examined using SEM, EDS, XRD and Vickers’s microhardness. The corrosion behavior was investigated by potentiodynamic polarization test in 0.5 M H₂SO₄ solution and 3.5 wt.% NaCl solution both for the uncoated and coated specimen. In both test solutions, the coatings that contained molybdenum and more chromium showed better corrosion resistance. The coated low nickel austenitic stainless steel can, therefore, be a cost-effective alternative to replace the widely used austenitic stainless steel in commercial as well as industrial applications.

低镍奥氏体不锈钢 (LNiASS) 比传统的 300 系列奥氏体不锈钢更经济，因为 60%（约）的镍被锰取代；它具有相似的机械性能，但耐腐蚀性较差。在这项工作中，低镍奥氏体不锈钢样品使用热喷涂技术涂覆镍基金属粉末。使用SEM、EDS、XRD和维氏显微硬度检测涂层的微观结构、相组成和性能。通过动电位极化试验在0.5 MH ₂ SO _{4 中}研究腐蚀行为溶液和 3.5 wt.% NaCl 溶液，用于未涂层和涂层样品。在这两种测试溶液中，含有钼和更多铬的涂层表现出更好的耐腐蚀性。因此，涂层低镍奥氏体不锈钢可以成为替代商业和工业应用中广泛使用的奥氏体不锈钢的具有成本效益的替代品。