K. V. Makhneva, I. B. Kinzin, M. A. Shabanov, O. V. Selivanova, V. A. Khotinov
EFFECT OF TEMPERING CONDITIONS ON THE STRUCTURE AND STRENGTH PROPERTIES OF STRUCTURAL STEELS
DOI: 10.17804/2410-9908.2024.1.006-010 The structure and mechanical properties of low- and medium-carbon steels quenched and tempered with different isothermal holding times at temperatures ranging from 250 to 650 °C are studied. It is shown that, for the steels under study, three stages can be distinguished on the curves of hardness as a function of isothermal holding at different temperatures. Hardness testing is used to determine tempering conditions leading to a comparable level of hardness. To calculate the tempering parameter, the constant C in the Hollomon–Jaffe equation is determined for the steels in question.
Acknowledgments: The work financially supported by the Ministry of Science and Higher Education of the Rus-sian Federation (the Ural Federal University Development Program within the framework of the Priority 2030 program). The equipment of the UrFU’s shared research facilities was used in the testing. Keywords: steel, quenching, martensite, tempering parameter, hardness, dislocation density, carbides References:
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Article reference
Effect of Tempering Conditions on the Structure and Strength Properties of Structural Steels / K. V. Makhneva, I. B. Kinzin, M. A. Shabanov, O. V. Selivanova, V. A. Khotinov // Diagnostics, Resource and Mechanics of materials and structures. -
2024. - Iss. 1. - P. 6-10. - DOI: 10.17804/2410-9908.2024.1.006-010. -
URL: http://eng.dream-journal.org/issues/2024-1/2024-1_430.html (accessed: 11/03/2024).
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