Erosion Corrosion of Coatings and Steels at 550 °C

  1. Prof. Dr. P. Neumann2,
  2. Dr. D. Allen3 and
  3. Prof. Dr. E. Teuckhoff4
  1. A. Hjörnhede,
  2. R. Norling and
  3. I. Olefjord

Published Online: 5 JAN 2006

DOI: 10.1002/3527606181.ch71

Steels and Materials for Power Plants, Volume 7

Steels and Materials for Power Plants, Volume 7

How to Cite

Hjörnhede, A., Norling, R. and Olefjord, I. (2000) Erosion Corrosion of Coatings and Steels at 550 °C, in Steels and Materials for Power Plants, Volume 7 (eds P. Neumann, D. Allen and E. Teuckhoff), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527606181.ch71

Editor Information

  1. 2

    Max-Planck-Institut für Eisenforschung, Max-Planck-Str. 1, 40237 Düsseldorf, Germany

  2. 3

    ABB Asltom Power UK Ltd., Cambridge Road, Whetstone, Leicester LE9 GLH, United Kingdom

  3. 4

    Siemens AG, Postfach 3240, 91050 Erlangen, Germany

Author Information

  1. Chalmers University of Technology, SE-412 96 Göteborg, Sweden

Publication History

  1. Published Online: 5 JAN 2006
  2. Published Print: 27 JUN 2000

Book Series:

  1. EUROMAT 99

ISBN Information

Print ISBN: 9783527301959

Online ISBN: 9783527606184

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Keywords:

  • steels for power plants;
  • materials for power plant;
  • erosion corrosion of coatings at 550 °C;
  • erosion corrosion of steels at 550 °C

Summary

In heat and electricity production fluidized bed technology is often used. The reasons are high fuel flexibility, low combustion temperatures and relatively low emission of NOX and SO2. However, combustion in fluidizing beds causes erosion corrosion of water walls and heat exchangers due to erosion by sand particles and corrosion by aggressive components in the gas phase. The steam temperature has to be limited due to the degradation of the material. The wastage depends on the exposure conditions: temperature, erodent, particle velocity, shape, size etc. The highest erosion corrosion rate is obtained in the temperature region 300 - 500°C, depending of the exposure conditions [1-4].

This report is dealing with erosion corrosion on materials often used in fluidized beds. It is the first in a series, which aim is to give a description of the erosion corrosion mechanism