A Mechanics-Based Analysis of Stress-Corrosion Cracking of Line-Pipe Steel in a Carbonate-Bicarbonate Environment

    Published: Jan 1990

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    A model for stress-corrosion cracking (SCC) crack initiation and early growth has been developed and used to rationalize the SCC susceptibility observed in tapered-tension tests of line-pipe steels that have been tested at a high maximum stress, with a small amplitude load-controlled cyclic component in a carbonate-bicarbonate environment. Results presented here indicated a good correlation between the observed susceptibility and that predicted with the model. The main conclusion is that SCC models can be used to rationalize experimentally observed cracking behavior and as such can be used to identify conditions for cracking or mitigation beyond the scope of the test conditions, including line pipe applications.


    stress corrosion cracking (SCC), initiation, propagation, free surfaces, models, prediction, slow-strain-rate test, tapered-tension test, line pipe steels, dissolution, creep, plasticity, fatigue (materials), cracking, environmental effects

    Author Information:

    Leis, BN
    Research leader and research scientist, Battelle, Columbus, OH

    Walsh, WJ
    Research leader and research scientist, Battelle, Columbus, OH

    Committee/Subcommittee: G01.06

    DOI: 10.1520/STP24069S

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