cracking of 625 overlayed 8620/ 4130 during GTAW welding
cracking of 625 overlayed 8620/ 4130 during GTAW welding
(OP)
I am observing cracking of 625 overlayed 8620-4130 butt welds ("hot cracking type occurrence). The butt welding is done after the 625 overlay (which has a PWHT) is in place. Has anyone experienced similar?





RE: cracking of 625 overlayed 8620/ 4130 during GTAW welding
What is the exact sequence for joining and where exactly is the hot cracking or cracking located?
RE: cracking of 625 overlayed 8620/ 4130 during GTAW welding
overlay
pwht (stress relieve)
butt weld
cracking along centreline of the weld.
RE: cracking of 625 overlayed 8620/ 4130 during GTAW welding
RE: cracking of 625 overlayed 8620/ 4130 during GTAW welding
RE: cracking of 625 overlayed 8620/ 4130 during GTAW welding
RE: cracking of 625 overlayed 8620/ 4130 during GTAW welding
RE: cracking of 625 overlayed 8620/ 4130 during GTAW welding