Ajikumar, P. K. ; Sankaran, Ananthi ; Kamruddin, M. ; Nithya, R. ; Shankar, P. ; Dash, S. ; Tyagi, A. K. ; Baldev Raj, (2006) Morphology and growth aspects of Cr(N) phases on gas nitridation of electroplated chromium on AISI 316 LN stainless steel Surface and Coatings Technology, 201 (1-2). pp. 102-107. ISSN 0257-8972
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S02578...
Related URL: http://dx.doi.org/10.1016/j.surfcoat.2005.10.043
Abstract
A gas-phase nitridation procedure has been investigated using a home-assembled TGA-MS system to enhance the high-temperature hardness and wear resistance of electroplated chromium on AISI 316 LN austenitic stainless steel. The sluggish diffusion kinetics of nitrogen in chromium and the presence of a thin oxide layer at the surface are the major constraints encountered during low-temperature gas nitridation process. This paper attempts to bring out a detailed correlation of the effect of nitridation environment, ammonia dissociation rate, substrate temperature and catalytic role of a thin nickel layer, on the nitriding characteristics towards addressing the above-mentioned limitations. XRD and SEM investigations on the nitrided specimens unambiguously reveal the morphology and the distribution of CrN and Cr2N phases formed during nitridation.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Nitridation; Chromium Nitride; Texturing; SEM; XRD |
| ID Code: | 40312 |
| Deposited On: | 23 May 2011 12:20 |
| Last Modified: | 23 May 2011 12:20 |
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