DYNAMIC FRACTURE ENERGY MEASUREMENTS IN HYDROGENATED AUSTENITIC STAINLESS STEELS AT 300°C

M. Habashi  J. Sojka  M. Tvrdy  J. Galland  L. Hyspecka    

Anales de la Mecánica de la Fractura, nº 9 . 1992 . Pág. 189 -192
Ver (.pdf): Anales09-033

Resumen: Hydrogen embrittlement of verious sensitizated stainless steels was compared with actual defects found in components of PWR or BWR type nuclear plants. Hydrogen charging was performed at 300°C by electrolysis in a bath of molten salts. Impact toughness instrumented tests were carried out at -180°C. It was found that hydrogen affects mainly cohesion of the austenite grain boundaries. In order of importance other paths of fracture were detected : boundaries of annealing twins, 8 phase and inclusions - matrix interfaces.

LocalizaciónAiguablava, Gerona

Ecole Centrale Paris, C.F.H. labo., Chatenay-Malabry, France
Institute Researche of Vitkovice, Ostrava, Czechoslovakia.
Institute Researche of Vitkovice, Ostrava, Czechoslovakia.
Ecole Centrale Paris, C.F.H. labo., Chatenay-Malabry, France
Ecole Centrale Paris, C.F.H. labo., Chatenay-Malabry, France