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Title of Journal: Oxid Met

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Abbravation: Oxidation of Metals

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Kluwer Academic Publishers-Plenum Publishers

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DOI

10.1002/rnc.1711

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1573-4889

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Corrosion of Three Commercial Steels Under ZnClSu

Authors: T J Pan C L Zeng Y Niu
Publish Date: 2007/01/19
Volume: 67, Issue: 1-2, Pages: 107-127
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Abstract

The corrosion of three commercial steels in a reducing atmosphere containing HCl plus H2S in the presence of ZnCl2–KCl deposits has been investigated at 400–500°C and compared with the corrosion of the same materials in a similar gas mixture free from H2S The presence of H2S in the gas accelerated the corrosion of the three commercial steels beneath ZnCl2–KCl deposits All materials suffered from severe corrosion with partial detachment and spalling of the external scales Degradation of the steels resulted from the penetration of chlorinecontaining species through the scale formed initially down to the metal matrix because chorinerich species were detected close to the alloy/scale interface Although the corrosion resistance generally increased with increasing Cr content even the highCr stainless steel SS304 is still unable to provide good corrosion resistance against the ZnCl2–KCl deposits in the presence of H2S due to the bad adherence of the scales to the alloy The mechanisms of attack are discussed on the basis of thermodynamic considerations and of the activeoxidation model


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Other Papers In This Journal:

  1. Beneficial Effect of Pt and of Pre-Oxidation on the Oxidation Behaviour of an NiCoCrAlYTa Bond-Coating for Thermal Barrier Coating Systems
  2. Improving the Physicochemical Properties of Fe–25Cr Ferritic Steel for SOFC Interconnects via Y-Implantation and Y 2 O 3 -Deposition
  3. Oxidation of Heat-resistant Alloys
  4. Evaluation of High Temperature Corrosion in Simulated Waste Incinerator Environments
  5. An Improved Treatment of the Kinetics of Coupled Internal Oxidation by a Single Oxidant of the Two Most-Reactive Components of Ternary Alloys and of the Conditions for the Transition to Their External Oxidation
  6. An Improved Treatment of the Kinetics of Coupled Internal Oxidation by a Single Oxidant of the Two Most-Reactive Components of Ternary Alloys and of the Conditions for the Transition to Their External Oxidation
  7. Comparative Study on High Temperature Oxidation of T92 Steel in Dry and Wet Oxyfuel Environments
  8. Quantification of Adherence of Thermal Oxide Scale on Low Carbon Steel Using Tensile Test
  9. The Effect of Different SO 2 /SO 3 Catalytic Media on High-Temperature Corrosion Processes (Hot Corrosion, Fireside Corrosion, Sulfidation–Oxidation)
  10. Isothermal Oxidation Behavior of Ti-50Al Alloy with Y Additions at 800 and 900°C
  11. Isothermal Phase Diagrams of Binary Alloys and Two Oxidants
  12. Corrosion of Cr 2 AlC in Ar/1%SO 2 Gas Between 900 and 1200 °C
  13. Photoelectrochemistry of Oxidation Layers: A Novel Approach to Analyze Photocurrent Energy Spectra
  14. Influence of Chromium Carbides on the High Temperature Oxidation Behavior and on Chromium Diffusion in Nickel-Base Alloys
  15. The Mechanism of Phase Transformation in Thermally-Grown FeO Scale Formed on Pure-Fe in Air

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