Strathprints Home | Open Access | Browse | Search | User area | Copyright | Help | Library Home | SUPrimo

Temperature-dependent contact phenomena of PVD- and CVD-deposited DLC films sliding on the thin aluminium foil

Qin, Yi and Díaz de Cerio, M.J. and Fuentes, G.G. and Martínez, R. and Rodriguez, R. and Spain, E. and Housden, J. and Hörnig, W. (2009) Temperature-dependent contact phenomena of PVD- and CVD-deposited DLC films sliding on the thin aluminium foil. International Journal of Advanced Manufacturing Technology. ISSN 0268-3768

[img] PDF (strathprints013831.pdf)
Restricted to Registered users only until 30 June 2013.
Available under License Creative Commons Attribution Non-commercial No Derivatives.

Download (540Kb) | Request a copy from the Strathclyde author

    Abstract

    This paper reports on tribological properties of magnetron-sputtered WC-C and chemical-vapour deposited diamond-like carbon films coated onto hard-metal surfaces when sliding on aluminium foil (0.2 mm nominal thickness) at different temperatures. The study addresses the evolution of the coefficient of friction at the interfaces of the coated hard metal and the aluminium foil under dry-lubrication conditions, in a ball-on-disc configuration. The wear mechanisms of the aluminium foil and the damage produced on the coated surfaces due to the sticking of aluminium were evaluated as a function of the deposited coating and the temperature at their interfaces. Aluminium-transfer to WC-C coated hard-metal surfaces during the sliding operation seemed to be a non-continuous process, which appeared after a certain number of sliding cycles. Temperatures above 70ºC accelerated the transfer of aluminium to the WC-C tool surfaces. Chemical-vapour-deposited diamond-like carbon films hindered the transfer of aluminium to the hard metal even at temperatures of around 125ºC. At greater temperatures, an aluminium--aluminium tribo-surface is formed at the interface, which increases the wear rate of the foils and rapidly degrades the quality of coatings of the hard-metal surfaces.

    Item type: Article
    ID code: 13831
    Keywords: DLC, aluminium transfer, tribology, micro-forming, design engineering, Manufactures, Engineering design, Mechanical Engineering, Software, Industrial and Manufacturing Engineering, Control and Systems Engineering, Computer Science Applications
    Subjects: Technology > Manufactures
    Technology > Engineering (General). Civil engineering (General) > Engineering design
    Department: Faculty of Engineering > Design, Manufacture and Engineering Management
    Faculty of Engineering > Civil and Environmental Engineering
    Related URLs:
      Depositing user: Professor Yi Qin
      Date Deposited: 17 Dec 2009 16:03
      Last modified: 05 Sep 2014 00:28
      URI: http://strathprints.strath.ac.uk/id/eprint/13831

      Actions (login required)

      View Item

      Fulltext Downloads: