Comparative Study of Pitting Corrosion in 316L Stainless Steel Using Different Metal Additive Manufacturing Techniques

316L stainless steel is a commonly used material in range of industries, including the automotive and aerospace due to its advantageous mechanical properties, such as high yield strength outstanding corrosion resistance. In recent years, use metal additive manufacturing technologies for fabricating has become more common, it permits creation intricate geometries that are difficult achieve through conventional techniques. Nevertheless, certain characteristics additive-manufactured steel, pitting resistance, remain insufficiently understood. present experimental study, test was performed accordance with ASTM G48 standards. The conducted ferric chloride solution on LPBF, MBJ, WAAM steel. data compared wrought results investigation indicate LPBF exhibited highest followed by WAAM, 316L, MBJ. Microstructure analysis further demonstrated grain size played significant roles resistance performance materials, smaller yielding superior performance. Additionally, Vickers hardness testing revealed specimens higher better