Paper Title:
Processing and Excellent Oxidation Resistance of Nanocrystalline Fe-Cr Alloys
  Abstract

Nanocrystalline and microcrystalline Fe-10Cr alloys were prepared by high energy ball milling followed by compaction and sintering, and then oxidized in air for 52 hours at 400°C. The oxidation resistance of nanocrystalline Fe-10Cr alloy as determined by measuring the weight gain after regular time intervals was compared with that of the microcrystalline alloy of same chemical composition (also prepared by the same processing route and oxidized under identical conditions). Oxidation resistance of nanocrystalline Fe10Cr alloy was found to be in excess of an order of magnitude superior than that of microcrystalline Fe10Cr alloy. The paper also presents results of secondary ion mass spectrometry of oxidized samples of nanocrystalline and microcrystalline Fe-Cr alloys, evidencing the formation of a more protective oxide scale in the nanocrystalline alloy.

  Info
Periodical
Materials Science Forum (Volumes 654-656)
Main Theme
Edited by
Jian-Feng Nie and Allan Morton
Pages
1122-1125
DOI
10.4028/www.scientific.net/MSF.654-656.1122
Citation
R. K. Gupta, B.V. Mahesh, R.K. Singh Raman, C. C. Koch, "Processing and Excellent Oxidation Resistance of Nanocrystalline Fe-Cr Alloys", Materials Science Forum, Vols. 654-656, pp. 1122-1125, 2010
Online since
June 2010
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