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Communication Dans Un Congrès Année : 2014

Characterising the impact of surface integrity on the fatigue behaviour of forged components

Résumé

The present study focusses on analysing and modelling the influence on fatigue behaviour of the surface of a hot-forged C70 connecting rod which undergoes a shot-blasting treatment. The shot-blasting heavily affects the surface and thus the fatigue properties. In addition, the forging process introduces large defects which also have an effect on the fatigue strength. So as to be able to determine which aspects of the surface integrity are the most influential in fatigue, various surface states were thoroughly characterised and then tested in high cycle fatigue in bending. The various aspects studied are the surface roughness and large defects, residual stresses, microstructure and hardness.
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Dates et versions

hal-01082952 , version 1 (14-11-2014)

Identifiants

  • HAL Id : hal-01082952 , version 1

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Benjamin Gerin, Etienne Pessard, Franck Morel, Catherine Verdu. Characterising the impact of surface integrity on the fatigue behaviour of forged components. FDMD II : 2nd International Symposium on Fatigue Design and Material Defects, Jun 2014, Paris, France. pp.1-2. ⟨hal-01082952⟩
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