A Study of Changes in Fatigue Resistance Parameters of Steel 30KhGSN2A in the Process of Cyclic Deformation Hardening

Structural changes occurring in the surface layer as a result of the hardening produced by various variants cyclic loading in high-strength high-quality steel 30KhGSN2A are considered. The sizes of the hardened zone are determined. It is shown that the hardening occurs in the early loading stages an...

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Bibliographic Details
Published in:Metal science and heat treatment 2021, Vol.62 (9-10), p.648-655
Main Authors: Myl’nikov, V. V., Shetulov, D. I., Pronin, A. I.
Format: Article
Language:English
Subjects:
Analysis
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Cyclic loads
Deformation and Fracture
Engineering Thermodynamics
Fatigue
Fatigue strength
Fatigue testing machines
Heat and Mass Transfer
Heat treatment
Materials
Materials Science
Metal fatigue
Metallic Materials
Parameters
Steel
Steels
Surface layers
Thermal cycling
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Summary:Structural changes occurring in the surface layer as a result of the hardening produced by various variants cyclic loading in high-strength high-quality steel 30KhGSN2A are considered. The sizes of the hardened zone are determined. It is shown that the hardening occurs in the early loading stages and is then followed by a durable state of saturation until failure. The differences in the deformation behavior of the samples and the changes in the parameters of fatigue resistance are analyzed. The influence of the conditions of cyclic loading and of the modes of preliminary heat treatment of the steel on the parameters of fatigue resistance is studied.
ISSN:0026-0673
1573-8973
DOI:10.1007/s11041-021-00617-5