Surface Layer Hardness of Austenitic Stainless Steel via Low Temperature Plasma Carburizing and/or Nitriding

Abstract:

Surface layer hardness and concentration profiles of austenitic stainless steels after plasma carburizing and /or nitriding at 673 K were investigated. Carbon and nitrogen concentration were measured by glow discharge optical emission spectrometry (GDOES) and carbides or nitrides were detected by x-ray diffraction analysis (XRD) and TEM. The state of carbon at the treated surface was investigated by Raman spectroscopy. Separation of carburized layer and nitrided layer was observed in a simultaneous carburizing and nitriding plasma treatment.

• Periodical: Materials Science Forum (Volumes 561-565)
• Pages: 2477-2480
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.561-565.2477
• Online since: October 2007
• Authors: Masato Tsujikawa, S. Noguchi, N. Yamauchi, N. Ueda, T. Sone, Kazuhiro Nakata
• Keywords: Diffusion, Duplex Surface Layer, S Phase, Stainless Steel (SS), Surface Improvement

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