Studies on transient-stage-scale growth on Fe-22wt.% Cr alloys containing 120 PPM La + 270 PPM Ce

L. M.Fernandez Diaz, J. Zhu, G. R. Holcomb, P. D. Jablonski, D. E. Alman, S. Sridhar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Reactive elements (RE), such as Ce, La or Y, are known to improve oxidation resistance of Fe based alloys that form Cr2O3 scales. The current investigation aims to characterize the oxide scale in a Fe-22 wt.% Cr alloy containing 120 ppm La and 270 ppm Ce (added during melt-stage processing) as a function of oxidation times (at 800°C in dry air) during the transient stage of scale formation. The surface oxidation processes were imaged in-situ through a Confocal Scanning Laser Microscope (CSLM). The results are correlated with post-experiment characterization through FEG-SEM and dual beam FIB-SEM. The evolution of the reactive-elements-containing scale, its morphology and composition are determined.

Original languageEnglish (US)
Title of host publicationTMS 2009 - 138th Annual Meeting and Exhibition - Supplemental Proceedings
Pages313-320
Number of pages8
StatePublished - 2009
Externally publishedYes
EventTMS 2009 - 138th Annual Meeting and Exhibition - San Francisco, CA, United States
Duration: Feb 15 2009Feb 19 2009

Publication series

NameTMS Annual Meeting
Volume3

Other

OtherTMS 2009 - 138th Annual Meeting and Exhibition
Country/TerritoryUnited States
CitySan Francisco, CA
Period2/15/092/19/09

Keywords

  • High chromium content iron alloys
  • High temperature oxidation
  • Reactive elements

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys

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