Year: 1987
Type: article
Abstract: The effects of hydrogen introduced into a welded joint particularly from moisture of filler material used during welding of heavy gage steels are followed. The results are compared with the effects of hydrogen introduced by controlled electrolytic hydrogenization as a simulation of the hydrogen diffusion from cooling water into welded joints during the reactor operation. The quality of welded joints is shown to be unfavourably influenced by combined effects of hydrogen embrittlement and phosphorus segregation along grain boundaries. The optimum annealing for regeneration can be effectively performed at temperatures about 500°C, when the intergranular concentration of phosphorus and sulphur is minimum and the hydrogen content decreases depending on the temperature and activity of surrounding environment.
Authors: Václav PILOUS, Karel LÖBL
Language: English
Subfield: Metals and Alloys
Field: Materials Science
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W2003242420