HaouesGhouss, CherifSaib, SalahAmroune, BillelDarrouch, MohamedSlamani, Ramadan YoussefSakr, BorhenLouhichi, Mohamad A.Alawad, Microstructural Transformation and Hardness Response of TIG-Welded UNS S31803 Duplex Stainless Steel Subjected to Post-Weld Heat Treatment, steel research international2026, 0, e70569. https://doi.org/10.1002/srin.70569 Data Availability Statement The data that support the findings of this study are available from the corresponding author upon reasonable request.