A novel high-strength, high-ductility and high-corrosion-resistance FeAlMnC low-density alloy

Po Chih Chen, Chuen-Guang Chao, Tzeng-Feng Liu

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

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.
Original languageEnglish
Pages (from-to) 380-383
Number of pages4
JournalScripta Materialia
Volume68
Issue number6
DOIs
StatePublished - Mar 2013

Keywords

  • MARTENSITIC STAINLESS-STEEL
  • 3.5-PERCENT NACL
  • POST-OXIDATION
  • WEAR
  • IRON
  • PLASMA
  • BEHAVIOR
  • MICROSTRUCTURE
  • DECOMPOSITION
  • SYSTEM

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