Abstract
In fatigue life, surface integrity perform a major role to determine the fatigue lifetime. It could differ greatly among specific cases even for the same solicitations. Indeed, the manufacturing process carries modifications on surface state, residual stresses and the microstructure which affects the fatigue behavior of mechanical parts.
This article investigate the effect of surface roughness on the fatigue strength of AISI 1045 carbon steel obtained by the turning process.
The work carried out consists in testing in uniaxial fatigue different batches of specimens which have a controlled surface state. The S-N curves obtained present a strong dependence between fatigue performance and surface state. Based on the surface topography, a model for predicting fatigue limit will be adopted.
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Article history
- ReceivedUntil the next stage: 55 days
- Revision requestedUntil the next stage: 6 days
- RevisedUntil the next stage: 2 days
- AcceptedUntil the next stage: 13 days
- Published
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Licence
Copyright © 2019 Khadija Kimakh, Abdelkerim Chouaf, Amal Saoud, El Hassan Mallil, Samir Aghzer.
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