Plasma Treatments for Metallic Surface Modification to Obtain Highly Adherent Diamond-Like Carbon Coatings

Author

Capote, Gil ; Trava-Airoldi, Vladimir J. ; Bonetti, Luis F.

Author_Institution

Nat. Univ. of Colombia, Bogota, Colombia

Volume

42

Issue

6

fYear

2014

fDate

Jun-14

Firstpage

1742

Lastpage

1746

Abstract

The obtained results of the deposition of hard and adherent diamond-like carbon (DLC) films on four metal substrates, stainless steels AISI 304 and ASTM F138, carbon steel AISI 1020, and Ti6Al4V alloy, are presented. The DLC films were deposited using a modified pulsed-dc plasma enhanced chemical vapor deposition technique. With the aim to improve the film adhesion, surface modification like nitriding, carbonitriding, and carburizing were used previously to DLC film depositions. Strong DLC films´ stress dependence of the plasma treatments was observed. The stress reduction suggests an increase in the DLC films adherence to metallic substrate. Tribological tests also confirmed these results.

Keywords

adhesion; coatings; diamond-like carbon; internal stresses; plasma CVD; surface hardening; thin films; wear; wear testing; C; DLC films; TiAlV; TiAlV alloy substrates; adherent diamond-like carbon coatings; adherent diamond-like carbon films; adhesion; carbon steel AISI 1020 substrates; carbonitriding; carburizing; metal substrates; modified pulsed-dc plasma enhanced chemical vapor deposition; plasma treatments; stainless steels AISI 304 substrates; stress dependence; stress reduction; surface modification; tribological testing; Coatings; Plasmas; Steel; Substrates; Surface treatment; Coatings; dc power systems; diamond-like carbon (DLC); plasma CVD; surface treatment; surface treatment.;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2014.2320854

Filename

6815767