Mechanical properties of CO2 corrosion product scales and their relationship to corrosion rates

In order to evaluate the protective ability of CO2 corrosion scale to steel under flow conditions at various CO2 partial pressures, the mechanical properties of the scale, i.e., Young's modulus, fracture toughness, interfacial fracture toughness and adhesion strength between the scale and steel...

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Published inCorrosion science Vol. 50; no. 10; pp. 2796 - 2803
Main Authors Gao, Kewei, Yu, Fang, Pang, Xiaolu, Zhang, Guoan, Qiao, Lijie, Chu, Wuyang, Lu, Minxu
Format Journal Article
LanguageEnglish
Published Kidlington Elsevier 01.10.2008
Subjects
Applied sciences
Corrosion
Corrosion environments
Exact sciences and technology
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
Corrosion
A. Steel
Carbon dioxide
Mass loss
Mechanical properties
C. Interface
Corrosion rate
Corrosion product
B. Weight loss
Interface
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Summary:In order to evaluate the protective ability of CO2 corrosion scale to steel under flow conditions at various CO2 partial pressures, the mechanical properties of the scale, i.e., Young's modulus, fracture toughness, interfacial fracture toughness and adhesion strength between the scale and steel were determined by nano-indentation, Vickers' indentation and tensile test. The influences of flow rate and CO2 partial pressure on these mechanical properties as well as the correlations between the properties and corrosion rates were investigated. The interfacial fracture toughness between the scale and steel can evaluate the protective ability of the scale to steel effectively.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0010-938X
1879-0496
DOI:10.1016/j.corsci.2008.07.016