1King Saudi University, P.O. Box 10219, Riyadh, 11433, Saudi Arabia
2School of Engineering, Tokyo Denki University, Nishikicho 2–2, Kanda, Chiyoda-Ku, Tokyo, 101–8457, Japan
3Division of Science and Engineering, Tokyo Denki University, Ishizaka, Hatoyama, Saitama, 350–0394, Japan
4Sankyo Seisakusho Co., Honjyo 2290, Kikugawa, Shizuoka, 439–0018, Japan
Online published on 28 February, 2017.
Ferrous-based materials rust easily when treated with corrosive solutions, particularly the inner surface of tubes. Diamond-like carbon (DLC) films have a high anti-corrosion property. In this study, we deposited DLC films on the inner wall of a stainless steel tube using a plasma-based ion implantation and deposition (PBII&D) technique. To investigate the anti-corrosion property of deposited DLC films in the tube, a corrosion test was performed using a circulatory system with dynamic flow of a corrosive solution for 7 days. The surface of samples before and after the corrosion test was observed by a scanning electron microscope (SEM). Variation in the samples was characterised using Ar ion laser Raman spectroscopy (Raman) and energy dispersive X-ray spectroscopy (EDS). The results indicate that DLC films exhibit an anti-corrosion property towards corrosive solutions, which will facilitate their use as protective coating for medical applications.
Diamond-like Carbon, Anti-corrosion Chemicals, Protective Coating
