Effects of Heat Treatment Time and Temperature on Corrosion Properties in Weld Area of SS 347

This research studies welding area of austenitic alloy steel 347 from Intergranular corrosion point of view. The welding steps were done as per ASTM using E-347-15. Welded pieces were divided into 4 groups based on heat treatment time and temperature. Corrosion tests were carried out using Etch test, Exilic acid, Nitric acid, and metallographic studies were carried out using light and electronic microscopes (SEM) and micro hardness devices together with (XRD) reviews. Consequently, the best process for resisting intergranular corrosion can be done with selection of suitable temperature and time for heat treatment.