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Environmental assisted fracture for 4340 steel in water and air of various humidities

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Abstract

This paper reports on measurements of crack growth by environmental assisted fracture (EAF) for 4340 steel in water and in air at various relative humidities. Of most interest is the observation of slow crack propagation in dry air. Fractographic analysis leads to the strong suggestion that this slow crack propagation is due to hydrogen cracking caused by internal hydrogen in solid solution inside the sample material.

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Authors and Affiliations

  1. Department of Mining, Minerals and Materials Engineering, The University of Queensland, Brisbane, Qld 4072, Australia

    A. Oehlert

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  1. A. Oehlert
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  2. A. Atrens
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Oehlert, A., Atrens, A. Environmental assisted fracture for 4340 steel in water and air of various humidities. Journal of Materials Science 32, 6519–6523 (1997). https://doi.org/10.1023/A:1018659226945

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  • DOI: https://doi.org/10.1023/A:1018659226945

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