Paper Title:
High Temperature Oxidation Behavior of Si-Mo Ferritic Ductile Cast Iron
  Abstract

High temperature oxidation behavior of Si-Mo ferritic ductile cast iron was investigated in the point of the effect of chromium and vanadium addition. The addition of Cr promoted the formation of as-cast pearlite around carbide which exists in cell boundary, which was eliminated during annealing process. The addition of vanadium promoted the precipitation of tiny carbide and reduced the grain size of ferrite. As the test temperature increased, the change of volume increased, on the other hand, the change of weight decreased above 1173K. In the case of Cr added specimen, the change of weight decreased with the increase of test temperature because of the presence of Cr oxide layer. The vanadium added specimens showed higher increase in the weight and volume change. The oxide layer of vanadium added specimen had very porous structure and showed severe internal oxidation. It is due to the catastrophic oxidation characteristic of vanadium alloyed ferrous alloy.

  Info
Periodical
Materials Science Forum (Volumes 654-656)
Main Theme
Edited by
Jian-Feng Nie and Allan Morton
Pages
542-545
DOI
10.4028/www.scientific.net/MSF.654-656.542
Citation
K. H. Choe, S. M. Lee, K. W. Lee, "High Temperature Oxidation Behavior of Si-Mo Ferritic Ductile Cast Iron", Materials Science Forum, Vols. 654-656, pp. 542-545, 2010
Online since
June 2010
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Price
$32.00
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