J Mater Sci Technol ›› 2009, Vol. 25 ›› Issue (05): 611-614.

• Articles • Previous Articles     Next Articles

Influence of Surface Treatment on the Corrosion Resistance of Stainless Steel in Simulated Human Body Environment

Esmaeil Jafariy , Mohammad Jafar Hadianfard   

  1. Dept. of Materials Science and Engineering, Shiraz University, Iran
  • Received:2008-07-07 Revised:2009-03-08 Online:2009-09-28 Published:2009-10-10
  • Contact: esmaeil jafari

Abstract:

In the present research, the influence of chromium enrichment by surface treatment on corrosion resistance of type 316L stainless steel in body environment was investigated. For this study, weight loss test during 18 months, cyclic and liner polarization tests before and after surface treatment and metallography by electron
and light microscopy were used to evaluate the effectiveness of the proposed method. In addition, X-ray photoelectron spectroscopy (XPS) method was used to determine the chromium concentration in the surface layer after surface treatment. Results show that the surface treatment has improved corrosion resistance of the type 316L stainless steel in body environment.

Key words: Surface treatment, corrosion, passive film, polarization resistance