Title: A novel high-strength, high-ductility and high-corrosion-resistance FeAlMnC low-density alloy
Authors: Chen, Po-Chih
Chao, Chuen-Guang
Liu, Tzeng-Feng
Department of Materials Science and Engineering
Keywords: Spinodal decomposition;Plasma nitriding;Corrrosion resistance;Microhardness;FeAlMnC alloy
Issue Date: 1-Mar-2013
Abstract: The as-quenched Fe-8.68 wt.% Al-30.5 wt.% Mn-1.85 wt.% C alloy is plasma-nitrided at 500 degrees C for 8 h. The nitrided layer obtained is 40 mu m thick and composed predominantly of AlN, with a small amount of Fe4N. The resultant surface hardness (1860 Hv), substrate hardness (550 Hv), ductility (33.6%) and corrosion resistance in 3.5% NaCl solution in the present nitrided alloy are far superior to those obtained previously in optimally nitrided high-strength alloy steels, as well as martensitic and precipitation-hardening stainless steels. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
URI: http://dx.doi.org/10.1016/j.scriptamat.2012.10.034
ISSN: 1359-6462
DOI: 10.1016/j.scriptamat.2012.10.034
Volume: 68
Issue: 6
Begin Page: 380
End Page: 383
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