Wear behavior of heat-treated AISI 410 martensitic stainless-steel cladding on API X70 carbon steel
摘要
This study evaluates the wear resistance of AISI 410 stainless-steel welding overlays on API X70 steel, focusing on the effects of post-welding heat treatments. Welding was performed with GMAW using the pulsed arc method, and samples were subjected to three different conditions: quenching from 1010 °C (Q), quenching followed by tempering at 600 °C (T), and quenching followed by stress relief at 400 °C (S). Microstructural analysis, microhardness measurements, and pin-on-disk sliding wear tests were conducted under 5N and 10N loads at 10 cm/s. The S3 condition demonstrated superior performance, achieving a hardness of 403 HV and material losses of 7.6923 × 10⁻4 cm3 (5N) and 1.0256 × 10⁻3 cm3 (10N), representing a 50% reduction in wear compared to untreated samples. These findings highlight the effectiveness of stress relief treatment at 400 °C in enhancing wear resistance, providing insights into optimizing heat treatments for durable stainless-steel overlays.
Graphical abstract