Bias effects on the tribological behavior of cathodic arc evaporated CrTiAlN coatings on AISI 304 stainless steel

Cheng Hsun Hsu, Kai Lin Chen, Zhao Hong Lin, Cherng Yuh Su, Chung Kwei Lin

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27 Citations (Scopus)

Abstract

In this study, CrTiAlN coatings were deposited on AISI 304 stainless steel by cathodic arc evaporation under a systematic variation of the substrate bias voltage. The coating morphology and properties including surface roughness, adhesion, hardness/elastic modulus (H/E) ratio, and friction behavior were analyzed to evaluate the impact of the substrate bias voltage on the coating microstructure and properties. The results suggest that for an optimized value of the substrate bias voltage, i.e. - 150 V, the CrTiAlN coatings showed increased Cr content and improved properties, such as higher adhesion strength, hardness, and elastic modulus in comparison to the coatings deposited by other substrate bias voltage. Moreover, the optimum coatings achieved a remarkable reduction in the steel friction coefficient from 0.65 to 0.45.

Original languageEnglish
Pages (from-to)3825-3829
Number of pages5
JournalThin Solid Films
Volume518
Issue number14
DOIs
Publication statusPublished - May 3 2010
Externally publishedYes

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Keywords

  • AISI 304 stainless steel
  • Bias voltage
  • Cathodic arc evaporation
  • CrTiAlN
  • Friction coefficient

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Metals and Alloys
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

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