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An investigation into friction behaviour of dispersion-strengthened copper under severe railway braking conditions

type de publication      article dans une revue internationale avec comité de lecture
date de publication 2006
auteur(s) Roussette Olivier; Desplanques Yannick; Degallaix Gérard
journal (abréviation) Tribology Letters (Tribol Lett)
volume (numéro) 21 (2)
  
pages 101 – 105
résumé A dispersion-strengthened copper (DSC) has been studied as an alternative material for railway brake discs, to be used in severe railway braking applications. Compared to standard steel, the DSC shows a more homogeneous thermal field at the friction surface. This also applies in depth, both avoiding hot spots. This thermal behaviour implies a lower wear and a very interesting friction coefficient evolution without any “antifade” phenomenon.
mots clés Dispersion-strengthened copper, railway braking, disc brake, friction behaviour, wear, thermal gradients.
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