Bernd 07/17/2017 (Mon) 22:27:21 No. 8990 del
>although different phases not really related to internal tensions as is, it is mostly about crystallic structure, size of grain etc.
Indeed – I meant to point out (but didn't explain it properly) that when a phase transition occurs, it doesn't occur through entire block of metal at the same time, so for a while you get tension between pieces that suddenly don't match anymore.