The Paton Welding Journal, 2000, №02

2000 №02 (13)

2000 №02 (02)

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The Paton Welding Journal, 2000, #2, 2-7 pages

Role of temperature in hydrogen-induced cracking of structural steels, welded joints

I.K. Pokhodnya, S.N. Stepanyuk, V.I. Shvachko

E.O. Paton Electric Welding Institute of the NASU 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.

Abstract
A procedure is proposed for experimental study of the influence of hydrogen on mechanical properties of the metal in a broad range of temperatures. Temperature dependencies of the degree of hydrogen- induced embrittlement for St.20 and 17KhGNDSM steels in the temperature range of 196-400^oC are determined. It is shown that, alongside the structural state, content and distribution of hydrogen, stress level and straining rate, temperature is the main initial factor determining the process of hydrogen embrittlement.
Keywords: welding heating, physical modelling, structural steels, cold cracks, hydrogen embrittlement, temperature influence, microcleavage resistance, dislocation transfer of hydrogen

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Suggested Citation

I.K. Pokhodnya, S.N. Stepanyuk, V.I. Shvachko (2000) Role of temperature in hydrogen-induced cracking of structural steels, welded joints. The Paton Welding J., 02, 2-7.

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