Effect of Diamond like Carbon Coating Thickness on Stainless Steel Substrate

Abdul Wasy Zia, G. Balakrishnan, Yi-Qi Wang, Jung Il Song, Seunghun Lee

Research output: Contribution to journalConference articlepeer-review

Abstract

Diamond like carbon coatings have excellent wear properties with high hardness. The hardness and adhesion properties vary with sp3/sp2 ratio and coating thickness. In this research, effect of coating thickness on stainless steel substrate has studied. Diamond like carbon coatings of 300nm, 500nm, and 650nm has deposited using Filter Cathodic Vacuum Arc System with Magnetron sputtered Chromium interlayer. The characterization includes, Field Emission Electron Microscopy, Raman spectroscopy, Tribology and Adhesion strength evaluation. It was concluded that, surface finish decreased with increase in coating thickness. Maximum ID/IG of 0.84 was obtained for 30nm diamond like carbon coated stainless steel. The minimum average friction coefficient of 0.115 was obtained for 500nm coating. Moreover, it was observed that, friction coefficient decrease with increase in coating thickness in initial phases, after certain time it increase directly proportional to thickness. For adhesion strength, LC1 was found good for 650nm and LC2 for 500nm respectively.
Original languageEnglish
Pages (from-to)378-383
Number of pages6
JournalJournal of the Korean Society of Mechanical Engineers
Volume2013
Publication statusPublished - May 2013
EventKorean Society of Manufacturing Process Engineers, Annual Spring Conference 2013 - , Korea, Republic of
Duration: 1 May 20131 May 2013
https://www.dbpia.co.kr/journal/voisDetail?voisId=VOIS00108283
https://www.dbpia.co.kr/journal/voisDetail?voisId=VOIS00110033

Keywords

  • Diamond-like carbon
  • thin film
  • Coating
  • thickness
  • plasma
  • etching
  • CUTTING TOOLS

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