Conclusions
-
1.
Prolonged immersion of the alloy in an atmosphere of hydrogen and the magnitude of loading both influence the nature of fracture and critical crack propagation in specimens of 03Kh20N60MVYu.
-
2.
In order to evaluate the influence of hydrogen on the crack resistance of alloys, determination of the property ratios KcH/Kc and KcH/σ0.2 is proposed, and also the threshold value of KIcH defining the "safe working" level for parts.
-
3.
Heat treatment according to the regime: austenize at 1050°C, 1 h; air cool + age at 75°C, 3 h; water cool, produces the formation of a structure in alloy 03Kh20N60MVYu with uniformly distributed particles of γ′-phase whose sizes deviate only slightly from the average.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Literature cited
V. V. Panasyuka (ed.), Mechanics of Fracture and Strength of Materials, Vol. 1: Principles of the Fracture Mechanics of Materials [in Russian], Naukova Dumka, Kiev (1988).
R. V. Khertsberg, Deformation and Fracture Mechanics of Structural Materials [in Russian], Metallurgiya, Moscow (1989).
F. Seiti, "Hydrogen engines and the selection of materials for them," Kindzoku,46, No. 4, 27–31 (1976).
V. P. Lesnikov, V. A. Kopylova, A. A. Kopylov, and V. V. Poleva, "Effect of heat treatment on the structure and properties of a dispersion hardening nickel alloy," Izv. Vyssh. Uchebn. Zaved., Chern. Metall., No. 6, 81–85 (1987).
D. Saga, "Hydrogen embrittlement of pure nickel and nickel-iron alloys," Nikhon Kindzoku Gakkai,41, No. 4, 345–352 (1977).
Yu. B. Egorova, "On the mechanisms of hydrogen embrittlement of heat-resistant nickel alloys," in: Interaction of Defects in the Crystal Lattice and the Properties of Metals and Alloys, Tula (1985).
K. A. Yushchenko, V. S. Savchenko, and O. N. Ostapenko, "Apparatus for determination of the fracture strength of welds in gaseous hydrogen," Informpis'mo, E. O. Paton IÉS, Akad. Nauk Ukr. SSR, Kiev (1989).
K. A. Yushchenko et al., "Arrangements for determining the crack resistance of metals in gas atmospheres at high pressure," Zavod. Lab.,55, No. 7, 79–81 (1989).
O. N. Romaniv, G. N. Nikiforchin, and A. S. Krys'kiv, "On the applicability of fracture critera for the evaluation of hydrogen embrittlement in high-strength steels," Fiz.-Khim. Mekh. Mater.,16, No. 6, 54–61 (1980).
Additional information
E. O. Paton Institute of Electrowelding. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 10, pp. 17–20, January, 1992.
Rights and permissions
About this article
Cite this article
Yushchenko, K.A., Savchenko, V.S. & Ostapenko, O.N. Effect of heat treatment on the resistance of a dispersion hardening nickel alloy to hydrogen embrittlement. Met Sci Heat Treat 34, 26–31 (1992). https://doi.org/10.1007/BF00768705
Issue Date:
DOI: https://doi.org/10.1007/BF00768705