Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Adhesion enhancement of DLC hard coatings by HiPIMS metal ion etching pretreatment
Year:2018
Research Areas
  • Engineering
Information
Abstract
Poor adhesion is a recurrent problem for the wider use of diamond-like carbon (DLC) coatings in industrial applications. In this work, we investigate the effectiveness of high-power impulse magnetron sputtering (HiPIMS) metal ion etching to improve the adhesion of DLC coatings on high speed steel substrates. The influence of HiPIMS pretreatment parameters, the metal ion selection for the process and the addition of bonding layers on the adhesion properties were studied. Daimler-Benz and nanoscratch test methods were used to evaluate the adhesion. The elemental composition, morphology and microstructure of the samples were evaluated by EELS, SEM, AFM and HRTEM. In general, samples pretreated with HiPIMS metal ion etching withstand larger critical loads than those pretreated by conventional Ar+ glow discharge and bonding layers. The pretreatment is proven to be very effective at removing surface contaminants and providing a gradual interface. The selection of Cr over Ti contributes to a significant improvement on the adhesion due to the reduction of the oxygen level at the interface thus ensuring an optimal coating-substrate contact and a more compliant structure, which prevents the delamination failure.
International
Si
JCR
Si
Title
Surface & Coatings Technology
ISBN
0257-8972
Impact factor JCR
2,906
Impact info
Volume
Journal number
349
From page
787
To page
796
Month
SIN MES
Ranking
Participants
  • Autor: José Antonio Santiago Varela (UPM)
  • Autor: I. Fernández-Martínez (Nano4Energy IFN)
  • Autor: A. Wennberg (Nano4Energy IFN)
  • Autor: J.M. Molina-Aldareguia
  • Autor: M. Castillo-Rodríguez
  • Autor: T.C. Rojas
  • Autor: J.C. Sánchez-López
  • Autor: M.U. González
  • Autor: J.M. García-Martín
  • Autor: H. Li
  • Autor: V. Bellido-González
  • Autor: M.A. Monclús
  • Autor: Raquel Gonzalez Arrabal (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Fusión Nuclear Inercial y Tecnología de fusión
  • Centro o Instituto I+D+i: Instituto de Fusión Nuclear "Guillermo Velarde"
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)