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Sulfidation properties of an Fe-23.4Cr-18.6Al alloy at temperatures 1073 and 1173 K in H2S-H2 atmospheres of sulfur at pressures 104-10−5 Pa

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Abstract

An investigation is reported on the sulfidation properties of an Fe-23.4Cr-18.6Al(at.%) alloy at 1073 and 1173 K in H2S-H2 atmospheres, 104 > PS 2 ≥ 105Pa. The sulfidation kinetics exhibited an early transient period before onset of parabolic kinetics. Values of the parabolic sulfidation rate constants increased by as much as 105 from their smallest values at low sulfur pressures, PS 2 ≦ 10−4 Pa, to maximum values at sulfur pressures PS 2 ∼ 102 Pa. Multilayered scales were formed, the number and types of layers dependent on sulfur pressure. A fully developed scale at sulfur pressures PS 2 > 10−3 Pa.

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Authors and Affiliations

  1. Metals Research Institute, Faculty of Engineering, Hokkaido University, 060, Sapporo, Japan

    T. Narita

  2. Institute of Materials Science, Academy of Mining and Metallurgy, Krakow, Poland

    K. Przybylski

  3. Institute for Materials Research, McMaster University, L8S 4ML, Hamilton, Ontario, Canada

    W. W. Smeltzer

Authors
  1. T. Narita
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  2. K. Przybylski
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  3. W. W. Smeltzer
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Narita, T., Przybylski, K. & Smeltzer, W.W. Sulfidation properties of an Fe-23.4Cr-18.6Al alloy at temperatures 1073 and 1173 K in H2S-H2 atmospheres of sulfur at pressures 104-10−5 Pa. Oxid Met 22, 181–200 (1984). https://doi.org/10.1007/BF00656904

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  • DOI: https://doi.org/10.1007/BF00656904

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