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Sulfidation Kinetics of FeCr and FeCrY Alloys

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Abstract

The sulfidation behavior of Fe20Cr and Fe20Cr0.7Y alloys in H2–H2S atmospheres at 700 and 800°C was determined by thermogravimetry. Isothermal measurements were carried out and the sulfidation kinetics were evaluated from the mass gain vs. time curves. The reaction products were examined in a scanning electron microscope and the compositions of micro-regions were determined using energy dispersive spectroscopy and X-ray diffraction. Yttrium addition increased the sulfidation resistance of the FeCr alloy.

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Authors and Affiliations

  1. Instituto de Pesquisas Energéticas e Nucleares, C.P. 11049, Cidade Universitária, CEP 05422-970, São Paulo, Brazil

    M. F. Pillis & L. V. Ramanathan

Authors
  1. M. F. Pillis
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  2. L. V. Ramanathan
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Correspondence to M. F. Pillis.

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Pillis, M.F., Ramanathan, L.V. Sulfidation Kinetics of FeCr and FeCrY Alloys. Journal of Thermal Analysis and Calorimetry 67, 391–396 (2002). https://doi.org/10.1023/A:1013931317313

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  • DOI: https://doi.org/10.1023/A:1013931317313

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