Corrosion, friction and wear performance of diamond – like carbon (DLC) coatings

Abstract

The a - C:H:W, TiN/a - C:H:W and the CrN/a - C:H:W coatings were deposited on steel surface by physical vapour deposition methods and studied for corrosion and tribological properties, after elemental and structural analysis. In friction pairs the elements coated with diamond-like carbon showed better tribological properties than the elements without coatings. The presence of interlayers in coatings contributed to an improvement in the tribological properties but decreased corrosion resistance.

Keywords

• diamond-like carbon coatings
• corrosion
• microstructure
• friction
• wear