J Mater Sci Technol ›› 2010, Vol. 26 ›› Issue (9): 833-838.

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Corrosion Behaviors of Two Types of Commercial Stainless Steel after Plastic Deformation

Esmaeil Jafari   

  1. Islamic Azad University Iran, Shiraz Branch
  • Received:2009-07-20 Revised:2009-12-04 Online:2010-09-21 Published:2010-09-21
  • Contact: esmaeil jafari

Abstract:

The influence of deformation temperature, strain rate and alloying elements such as chromium, nickel, copper, on corrosion resistance of a 304 stainless steel after plastic deformation was investigated. The techniques employed were tensile test at room and elevated temperature, deep drawing tests at various strain rates, X-ray diffraction test and potentiodynamic and cyclic polarization, metallography by optical and scanning electron microscopy. Results showed that chromium, nickel and copper had a significant effect on corrosion resistance of steel after plastic deformation. It was observed that corrosion resistance after plastic deformation was a function of deformation temperature and alloying elements.

Key words: Corrosion resistance, Plastic deformation, Stainless steel, Phase transformation, Polarization test