Abstract
The welded butt-joint specimens made from PT-3V alloy alloying by Al and V are investigated in initial state and after cyclic loading. It is shown that migration of interstitial impurities takes place to boundaries of weld zones and regions of primary segregation of substitution elements. This is followed by reductions of relative density of movable dislocations and length of dislocation segments. These factors lead to stabilization of weld material structure and enable an increase in the cyclic and static creep limits. These physical processes are mainly completed after 5·104 cycles of loading.
| Original language | English |
|---|---|
| Pages (from-to) | 101-108 |
| Number of pages | 0 |
| Journal | Problemy Prochnosti |
| Volume | 0 |
| Issue number | 5 |
| Publication status | Published - 1 May 1996 |