Stress corrosion cracking (SCC) is a complex phenomenon that involves various interacting physical and chemical processes. There is a combination of determinism and stochasticity that results in SCC colony evolution. A statistical model that generates a random field of corrosion pits and crack initiation at randomly selected pits is proposed in this work. A thermodynamic model of individual SC crack growth has been recently developed within the framework of the Crack Layer theory. Mathematical realization of the SC crack growth model is presented in the form of relations between the crack growth, hydrogen diffusion and corrosion rates on one hand and corresponding thermodynamic forces on the other. Experimental program for determination of the kinetic coefficients employed in crack growth equations is briefly reported. Finally, application of the individual crack growth law to random configuration of multiple cracks results in a simulation of SCC colony evolution, including a stage of the large-scale crack interaction. The solution of the crack interaction problem via FRANC2D Finite Element Methods results in a computer simulation of multi-crack cluster formation within the colony.
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2000 3rd International Pipeline Conference
October 1–5, 2000
Calgary, Alberta, Canada
Conference Sponsors:
- Pipeline Division
ISBN:
978-0-7918-4025-2
PROCEEDINGS PAPER
Theoretical and Experimental Study of Stress Corrosion Cracking of Pipeline Steel in Near Neutral pH Environment
B. Zhang,
B. Zhang
University of Illinois at Chicago, Chicago, IL
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J. Fan,
J. Fan
University of Illinois at Chicago, Chicago, IL
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Y. Gogotsi,
Y. Gogotsi
Drexel University, Philadelphia, PA
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A. Chudnovsky,
A. Chudnovsky
University of Illinois at Chicago, Chicago, IL
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A. Teitsma
A. Teitsma
Gas Technology Institute, Chicago, IL
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B. Zhang
University of Illinois at Chicago, Chicago, IL
J. Fan
University of Illinois at Chicago, Chicago, IL
Y. Gogotsi
Drexel University, Philadelphia, PA
A. Chudnovsky
University of Illinois at Chicago, Chicago, IL
A. Teitsma
Gas Technology Institute, Chicago, IL
Paper No:
IPC2000-225, V002T06A045; 8 pages
Published Online:
October 21, 2016
Citation
Zhang, B, Fan, J, Gogotsi, Y, Chudnovsky, A, & Teitsma, A. "Theoretical and Experimental Study of Stress Corrosion Cracking of Pipeline Steel in Near Neutral pH Environment." Proceedings of the 2000 3rd International Pipeline Conference. Volume 2: Integrity and Corrosion; Offshore Issues; Pipeline Automation and Measurement; Rotating Equipment. Calgary, Alberta, Canada. October 1–5, 2000. V002T06A045. ASME. https://doi.org/10.1115/IPC2000-225
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