Тривала міцність зварних швів теплостійких сталей в газоподібному водні

Abstract

Creep characteristics of different zones of welded joints of heat-resistant structural 15Kh2MFA and 2.25Cr-1Mo steels in the initial state and after degradation at laboratory and operation conditions tested in the air and hydrogen environment were present. It was shown that weakest zone of the degraded weld metal is the heat affected zone. Using the Larson-Miller parameter was compared the lifetime of the different zone of welded joints