Post-weld heat treatment cracking susceptibility of T23 weld metals for fossil fuel applications

The post-weld heat treatment (PWHT) cracking susceptibilities of T23 steel welded with four types of filler metals were evaluated by measuring the stress-rupture parameters (SRP), which are based on both the stress-rupture strength and the stress-rupture ductility. Post-weld heat treatment cracking tests were performed on T23 weld metals using a Gleeble system at temperatures of 650–750 °C and at stress levels of 100–500 MPa. The results showed...