Stress corrosion crack growth in pipe grade steels in near neutral pH environment

Byoung-Ho Choi, Alexander Chudnovsky

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

This paper is concerned with an accelerated testing and modeling of stress corrosion cracking (SCC) phenomena in pipe grade steels in near neutral pH environment. In modeling of SCC, the authors adopt the crack layer theory that provides formalism to account for contributions to crack growth rate such processes as electro-chemical corrosion, hydrogen embrittlement and mechanical loading. Special attention is paid to the hydrogen diffusion, a precursor to hydrogen embrittlement. The energy-momentum tensor (Eshelby's tensor) is employed to evaluate the thermodynamic forces responsible for SC crack growth. Griffith' crack equilibrium condition is used to derive a quasi-equilibrial SC crack growth equation. A parametric study and comparison with the experimental results of corrosion fatigue tests for various maximal stress, stress ratio and electric potential are performed to examine the validity of the proposed model.

Original languageEnglish
JournalInternational Journal of Fracture
Volume116
Issue number3
Publication statusPublished - 2002 Aug 1
Externally publishedYes

Fingerprint

Crack Growth
Corrosion
Crack propagation
Steel
Hydrogen embrittlement
Pipe
Stress corrosion cracking
Hydrogen
Tensors
Cracking
Griffith cracks
Crack
Electrochemical corrosion
Corrosion fatigue
Accelerated Testing
Crack Growth Rate
Energy-momentum Tensor
Electric Potential
Momentum
Modeling

ASJC Scopus subject areas

  • Computational Mechanics
  • Mechanics of Materials

Cite this

Stress corrosion crack growth in pipe grade steels in near neutral pH environment. / Choi, Byoung-Ho; Chudnovsky, Alexander.

In: International Journal of Fracture, Vol. 116, No. 3, 01.08.2002.

Research output: Contribution to journalArticle

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