Tetsu-to-Hagane
Online ISSN : 1883-2954
Print ISSN : 0021-1575
ISSN-L : 0021-1575
Effect of Residual Stress on Fatigue Strength of Induction Hardened Specimens of a Medium Carbon Steel
Shigeru YONETANIShigeo ISODA
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1989 Volume 75 Issue 8 Pages 1362-1369

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Abstract

The effect of residual stress on fatigue strength of a medium carbon steel was investigated. Specimens were induction hardened and subsequently reheated in three conditions to give them various distributions of residual stress. Fatige limit was improved by reheating in a condition compared with as induction hardened. Residual stress after the heat-treatments was compressive around the surface of the specimens, and varied to tensile stress in the inner unhardened region. A method to estimate fatigue limit from the total stress which is the sum of the residual stress and applied stress was proposed.

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© The Iron and Steel Institute of Japan
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