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2016-05-31 - Colloque/Présentation - communication orale - Anglais - 1 page(s)

Vitry Véronique , Bonin Luiza , Delaunois Fabienne , "Can heat treatment improve duplex electroless nickel coatings?" in THERMEC’2016, Gratz, Austria, 2016

  • Codes CREF : Chimie des surfaces et des interfaces (DI1327), Tribologie (DI1269), Traitement thermique des métaux (DI2317)
  • Unités de recherche UMONS : Métallurgie (F601)
  • Instituts UMONS : Institut de Recherche en Science et Ingénierie des Matériaux (Matériaux)
  • Centres UMONS : Ingénierie des matériaux (CRIM)

Abstract(s) :

(Anglais) Electroless nickel coatings are used in several industries because of their good properties: nickel-phosphorous is particularly used for its good corrosion resistance while nickel boron has better mechanical properties. Duplex coatings combining two layers of electroless nickel appear thus as a way to combine the advantages of both types of coatings. This was studied on as-deposited coatings and improvement was observed for some properties but not all. In this study, the mechanical and tribological behaviour of duplex coatings after heat treatment in slightly reducing atmosphere (95% Ar- 5% H2) at 400°C for one hour has been investigated by microscopy, hardness testing, roughness measurements, scratch tests and wear testing (abrasion and pin on disc).

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