Conclusions
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1.
Austenite forming during the isothermal quenching of high strength cast iron VCh50 is metastable and transforms to martensite in the course of mechanical testing.
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2.
The highest level of these or other properties of high strength cast iron is obtained at an optimal amount and stability of the austenite, which must be controlled by varying the isothermal quenching regimen.
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Additional information
Mariupol' Metallurgical Institute. “Azovmash“ Production Organization. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 10, pp. 27–29, October, 1992.
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Malinov, L.S., Cheilyakh, A.P., Malinov, V.L. et al. Effect of isothermal quenching on the properties and structure of high strength cast iron. Met Sci Heat Treat 34, 639–642 (1992). https://doi.org/10.1007/BF00776903
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DOI: https://doi.org/10.1007/BF00776903