Forschungs- & Entwicklungsinformationsdienst der Gemeinschaft - CORDIS

Plasma-assisted physical vapour deposition (PAPVD) chromium nitride (CrN) coatings on MRI201S Mg alloy

Chromium nitride coatings developed in this project distinguish themselves from other standard CrN coatings in that they are deposited at low temperatures (less than 180°C) and yet are well-adherent and show excellent frictional and wear properties. Thin films of CrN have been deposited on a new and in the future commercially available MRI201S magnesium alloys substrate by PA-PVD process using.

The deposition process has been optimized with respect to the adhesion, uniformity, stoichiometry, hardness, and frictional and wear behaviour. Additionally, a new wet chemical method was also developed to dramatically increase the adhesion of the CrN coating to the Mg alloy substrate. This process has been upscaled to an industrial process capable of coating large areas.

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