High Temperature Oxidation and Corrosion of Metals

This book is concerned with providing a fundamental basis for understanding the alloy-gas oxidation and corrosion reactions observed in practice and in the laboratory. Starting with a review of the enabling thermodynamic and kinetic theory, it analyzes reacting systems of increasing complexity. It considers in turn corrosion of a pure metal by a single oxidant and by multi-oxidant gases, followed by corrosion of alloys producing a single oxide then multiple reaction products. The concept of 'diffusion paths" is used in describing the distribution of products in reacting systems, and diffusion data is used to predict reaction rates whenever possible.

• Provides a logical and expert treatment of the subject for use as a guide for advanced-level academics, researchers and practitioners
• Text is well supported by numerous micrographs, phase diagrams and tabulations of relevant thermodynamic and kinetic data
• Combines physical chemistry and materials science methodologies

David Young was educated at the University of Melbourne then worked in Canada for 9 years (University of Toronto, McMaster University, National Research Council of Canada) on high temperature metal-gas reactions. Returning to Australia, he worked for BHP Steel Research then joined the University of New South Wales. There he led the School of Materials Science & Engineering for 15 years, and has carried out extensive work on high temperature corrosion in mixed gas atmospheres.
His work has led to over 350 publications, including the books Diffusion in the Condensed State (with J.S. Kirkaldy), Institute of Metals (1988) and High Temperature Oxidation and Corrosion of Metals, 1st ed., Elsevier (2008). It has been recognized by his election to the Australian Academy of Technological Sciences and Engineering, the U. R. Evans Award, Institute of Corrosion Science & Technology, UK, the High Temperature Materials Outstanding Achievement Award, Electrochemical Society, USA and election as Fellow, Electrochemical Society.

Autorentext

David Young was educated at the University of Melbourne then worked in Canada for 9 years (University of Toronto, McMaster University, National Research Council of Canada) on high temperature metal-gas reactions. Returning to Australia, he worked for BHP Steel Research then joined the University of New South Wales. There he led the School of Materials Science & Engineering for 15 years, and has carried out extensive work on high temperature corrosion in mixed gas atmospheres.His work has led to over 350 publications, including the books Diffusion in the Condensed State (with J.S. Kirkaldy), Institute of Metals (1988) and High Temperature Oxidation and Corrosion of Metals, 1st ed., Elsevier (2008). It has been recognized by his election to the Australian Academy of Technological Sciences and Engineering, the U. R. Evans Award, Institute of Corrosion Science & Technology, UK, the High Temperature Materials Outstanding Achievement Award, Electrochemical Society, USA and election as Fellow, Electrochemical Society.

Leseprobe

High Temperature Oxidation and Corrosion of Metals, Vol. 1, No. suppl (C) - 2008

ISSN: 1875-9491

doi: 10.1016/S1875-9491(08)00018-5

Glossary of Symbols Greek symbols Explanation for symbol Coefficient of thermal expansion Enrichment factor for metal in internal oxidation zone Ferrite, body-centred cubic metal phase d Deviation from stoichiometry in oxide d Thickness of gas phase boundary layer i Electrochemical potential of component i g Viscosity of gas Gamma Austenite, face-centred cubic metal phase Gamma Surface tension, free energy per unit surface area Gammai Activity coefficient of component i Interplanar distance, jump distance x/t*1/2, for parametric solutions to Fick's equation µi Chemical potential of component i *ni Stoichiometric coefficient in chemical reaction or compound nig Kinematic viscosity of gas niiv Kinetic frequency term nip Poisson's ratio Electrostatic potential Density s Mechanical stress th Fraction of surface sites Extent of reaction Mole fraction of oxide BO in solid solution Ai-zetaBzetaO c Critical strain for mechanical failure of scale or scale-alloy interface ik Wagner interaction coefficients for solute compounds i and k OX Mechanical strain in oxide Symbol Explanation for symbol A Surface area of oxidizing metal a**i Chemical activity of component i a'o, a''o Boundary values of oxygen activity at metal-scale and scale-gas interfaces B**i Mobility of species i Ci Concentration of component i C', C'' Boundary values of concentration at metal-scale and scale-gas interfaces D Diffusion coefficient D Grain boundary width DA Intrinsic diffusion coefficient for species A D*AB Gas phase diffusion coefficient for binary mixture A-B *D*A Tracer or self-diffusion coefficient of species A *D*ij Diffusion coefficient relating flux of component i to concentration gradient in component j

Inhalt

1. THE NATURE OF HIGH TEMPERATURE OXIDATION
   
   2. ENABLING THEORY
   3. OXIDATION OF PURE METALS
   4. MIXED GAS CORROSION OF PURE METALS
   5. ALLOY OXIDATION I: SINGLE-PHASE SCALES
   6. ALLOY OXIDATION II: INTERNAL OXIDATION
   7. ALLOY OXIDATION III: MULTI-PHASE SCALES
   8. CORROSION BY SULPHUR
   9. CORROSION BY CARBON
   10. EFFECTS OF WATER VAPOUR ON OXIDATION
   11. CYCLIC OXIDATION
   12. ALLOY DESIGN
       APPENDICES