| Issue |
MATEC Web of Conferences
Volume 7, 2013
JA 2013 – Journées Annuelles de la SF2M 2013 / SF2M Annual Meeting 2013
|
|
|---|---|---|
| Article Number | 01006 | |
| Number of page(s) | 2 | |
| Section | Colloque 1 : Matériaux pour le Transport / Materials for Transportation | |
| DOI | https://doi.org/10.1051/matecconf/20130701006 | |
| Published online | 07 November 2013 | |
Modification de la morphologie du graphite pour l'amélioration de la durée de vie des disques de frein poids lourd
Graphite morphology modification for improvement of truck brake disc lifespan
1 Univ Lille Nord de France, 59000 Lille, France
2 ECLille, LML, 59650 Villeneuve d'Ascq, France
3 USTL, LML, 59650 Villeneuve d'Ascq, France
4 CNRS, UMR 8107, 59650 Villeneuve d'Ascq, France
5 Centre Technique des Industries de la Fonderie (CTIF), 92318 Sèvres, France
La durée de vie des disques de frein pour applications poids lourds peut être limitée par une fissuration prématurée induite par les sollicitations thermomécaniques subies par le disque en condition de freinage. La présente étude propose une réponse matériau basée sur la modification de la morphologie du graphite. Le comportement des matériaux innovés est comparé en condition de freinage et de fatigue thermique à celui d'une fonte à graphite lamellaire utilisée en service.
Abstract
The truck brake disc lifespan can be limited by a premature failure induced by the thermo mechanical solicitations occurring during braking. This study proposes a solution by a material approach consisting in the modification of the graphite morphology. The behavior of evolved materials is tested under braking and thermal fatigue solicitations with comparison to an grey cast iron used in service.
© Owned by the authors, published by EDP Sciences, 2013
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