Anodic Polarization Behavior of Cold-Worked Austenitic Stainless Steel: A Newer Approach

Abstract:

The anodic potentiodynamic polarization behavior of various grades of cold-worked (rolling and machining) austenitic stainless steels were studied. Deformed specimens were characterized by Electron backscattered diffraction (EBSD) and Fourier transform infrared spectroscopy (FTIR)-imaging. The FTIR-imaging was used to quantify chromium oxide (Cr₂O₃) spectra. It was observed, average area under Cr₂O₃ spectra was decreased with increase in cold -working. The certain regions in deformed microstructure showed higher value of area under Cr₂O₃ spectra, indicated stability of passivation film that needs to be explored. There was no microstructurally different between machined specimens.

• Periodical: Materials Science Forum (Volume 969)
• Pages: 16-21
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.969.16
• Online since: August 2019
• Authors: Narayanan Srinivasan*, S. Senthil Kumaran, D. Venkateswarlu
• Keywords: Cold Rolling, Electron Backscattered Diffraction (EBSD), Fourier Transform Infrared Spectroscopy (FTIR)-Imaging, Machining, Passive Films, Plastic Deformation

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