Conclusions
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1.
Between the share of ductile constituent in the macrofracture and the impact strength of 32G2 steel heat treated by hardening with interrupted quenching there exists a parabolic relationship, which is an indication of the complex character of the change in the relationship between the works for crack origin and propagation.
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2.
The increase in impact strength of 32G2 steel with an increase in the temperature of the end of accelerated quenching during hardening is accompanied by an increase in the depth of the dimples of the ductile fracture and a decrease in their dimensions.
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Dnepropetrovsk Metallurgical Institute. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 6, pp. 62–63, June, 1987.
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Gul', Y.P., Chmeleva, V.S. & Kalinushkin, E.P. Relationship between impact strength and the character of fracture of heat-treated 32G2 steel. Met Sci Heat Treat 29, 477–479 (1987). https://doi.org/10.1007/BF00715888
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DOI: https://doi.org/10.1007/BF00715888