Basu, A. ; Majumdar, J. Dutta ; Alphonsa, J. ; Mukherjee, S. ; Manna, I. (2008) Corrosion resistance improvement of high carbon low alloy steel by plasma nitriding Materials Letters, 62 (17-18). pp. 3117-3120. ISSN 0167-577X
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S01675...
Related URL: http://dx.doi.org/10.1016/j.matlet.2008.02.001
Abstract
The present study concerns improving the corrosion resistance of a low alloy-high carbon steel by plasma nitriding in pulsed direct current glow discharge mode at an applied voltage of 540-710 V with 3-6 A current in the temperature range 450-560°C for a time period of 1-5 h. The phases formed after nitriding is mostly γ'-Fe4N with a small volume fraction of ε-Fe3N/Fe2N. Nitride volume fraction increases with nitriding time and temperature. Corrosion study reveals that plasma nitriding significantly improves the corrosion resistance in terms of corrosion potential, corrosion current density and resistance to polarization. This improvement is attributed to both formation of solid solution and nitrides on the surface.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Materials Research Society. |
| Keywords: | Steel; Plasma Nitriding; Corrosion |
| ID Code: | 18824 |
| Deposited On: | 17 Nov 2010 12:20 |
| Last Modified: | 06 Jun 2011 06:00 |
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