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Home / Journal of Nanoscience and Nanotechnology, Volume 19, Number 4

Effects of Molybdenum on Improvement of Anti-Corrosion by Plasma Ion Nitriding for Austenitic Stainless Steels

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Authors: Chong, Sang-Ok 1 ; Kim, Seong-Jong 2 ; 

Source: Journal of Nanoscience and Nanotechnology, Volume 19, Number 4, April 2019, pp. 2198-2201(4)

Publisher: American Scientific Publishers

DOI: https://doi.org/10.1166/jnn.2019.16006

Corrosion characteristics of SUS 304 and SUS 316L under the marine environment were investigated by plasma ion nitriding at 450 °C with a gas ratio of 25% N2 and 75% H2 for 10 hours. In the anodic polarization experiment performed in natural seawater, noble pitting potential and wide passive region were exhibited in SUS 316L due to the synergistic effect of molybdenum and nitrogen even after plasma ion nitriding compared with SUS 304. In the corrosion rate obtained by an extrapolation method after plasma ion nitriding, a similar result of corrosion current density represented in SUS 304 while lower corrosion current density was analyzed in SUS 316L.

Keywords: Corrosion Characteristics; Molybdenum; Natural Seawater; Plasma Ion Nitriding

Document Type: Research Article

Affiliations: 1: Division of Maritime, DNV · GL, Gimhae, 51004, Rep. of Korea 2: Division of Maritime, DNV GL, Gimhae, 51004, Rep. of Korea 2Division of Marine Engineering, Mokpo Maritime University, Mokpo, 58628, Rep. of Korea

Publication date: 01 April 2019

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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