Stress analysis for the high-temperature gaseous corrosion of metal tubes

Stress analysis for the high-temperature gaseous corrosion of metal tubes is presented. The mechanical stresses arising from the difference in thermal expansion coefficients and volumes of a metal and its oxide can result in cracking of the oxide scale and in an increase of the oxidation rate. The m...

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Bibliographic Details
Published inCorrosion science Vol. 37; no. 12; pp. 1991 - 2001
Main Authors Rosenband, V., Gany, A.
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 01.12.1995
Elsevier Science
Subjects
Applied sciences
Corrosion
Corrosion environments
Exact sciences and technology
Metals. Metallurgy
Stress analysis
Experimental test
Tube
Oxide layer
Growth
Corrosion rate
Modeling
Tantalum
Mechanical stress
Thermal expansion coefficient
Gas corrosion
Oxidation
High temperature corrosion
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Summary:Stress analysis for the high-temperature gaseous corrosion of metal tubes is presented. The mechanical stresses arising from the difference in thermal expansion coefficients and volumes of a metal and its oxide can result in cracking of the oxide scale and in an increase of the oxidation rate. The model interprets the different behavior of oxide scale growths on outer versus inner tube surfaces. The oxidation behavior of tantalum tubes at temperatures of 825 °C and 930 °C is calculated based on this analysis. Results of the calculations are in good agreement with observed experimental data.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0010-938X
1879-0496
DOI:10.1016/0010-938X(95)00087-Z