In this paper, an attempt has been made to investigate the corrosion resistance of SS316L surface generated by Magnetic Field Assisted Abrasive Finishing (MFAAF) process. The characterization on the finished surface of SS316L was studied by electro chemical studies like potentiodynamic polarization and impedance studies. These studies indicated that the MFAAF process could enhance the corrosion resistance of the surface in sea water medium. The polarization studies had shown that MFAAF process could be adopted to improve the corrosion resistance of the machined SS316L surfaces. To examine the microscopic changes in the surface texture resulting from corrosion, the Scanning Electron Microscopy images have been carried out to gain insight of corroded surfaces. © 2014 University of Manchester and the authors.