Influence of the surface flaws in oil-tempered wires on the fatigue life of automotive engine valve springs

Abstract The purpose of this study is to evaluate the fatigue life of an automotive engine valve spring when the micro defect is applied to a 2300 MPa-class oil-tempered wire (OT wire) with 2.5 mm of diameter as the critical flaw depth. First, the deformation of the surface flaws in the OT wire duri...

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Bibliographic Details
Main Authors: Dae-Cheol Ko, Nam-Sik Ahn, Kyung-Hun Lee
Format: Article
Language:English
Published: Nature Portfolio 2022-12-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-022-25597-1