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Role of microstructure in susceptibility to hydrogen embrittlement of X70 microalloyed steel

Journal Article


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Abstract


  • The effect of phases and steel processing on hydrogen uptake (diffusible and residual),

    surface and internal damage were evaluated using optical and scanning electron microscopy. The

    results have shown the fastest formation of blisters in ferrite-pearlite microstructure of strip,

    followed by equaixed ferrite-pearlite microstructure in normalised condition, then by ferrite-bainite

    microstructure. No blistering was observed in heat affected zone samples for up to 24 hrs charging.

    Analysis of hydrogen-induced cracking using electron back scattering diffraction has revealed that

    crack propagation has predominantly intragranular character without a clear preference on {001},

    {110}, {112} and {123} planes and is independent of the steel microstructure and prior processing.

Publication Date


  • 2014

Citation


  • Hejazi, D., Saleh, A., Haq, A., Dunne, D., Calka, A., Gazder, A. A. & Pereloma, E. V. (2014). Role of microstructure in susceptibility to hydrogen embrittlement of X70 microalloyed steel. Materials Science Forum, 783-786 961-966.

Scopus Eid


  • 2-s2.0-84902245832

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3441&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/2432

Number Of Pages


  • 5

Start Page


  • 961

End Page


  • 966

Volume


  • 783-786

Abstract


  • The effect of phases and steel processing on hydrogen uptake (diffusible and residual),

    surface and internal damage were evaluated using optical and scanning electron microscopy. The

    results have shown the fastest formation of blisters in ferrite-pearlite microstructure of strip,

    followed by equaixed ferrite-pearlite microstructure in normalised condition, then by ferrite-bainite

    microstructure. No blistering was observed in heat affected zone samples for up to 24 hrs charging.

    Analysis of hydrogen-induced cracking using electron back scattering diffraction has revealed that

    crack propagation has predominantly intragranular character without a clear preference on {001},

    {110}, {112} and {123} planes and is independent of the steel microstructure and prior processing.

Publication Date


  • 2014

Citation


  • Hejazi, D., Saleh, A., Haq, A., Dunne, D., Calka, A., Gazder, A. A. & Pereloma, E. V. (2014). Role of microstructure in susceptibility to hydrogen embrittlement of X70 microalloyed steel. Materials Science Forum, 783-786 961-966.

Scopus Eid


  • 2-s2.0-84902245832

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3441&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/2432

Number Of Pages


  • 5

Start Page


  • 961

End Page


  • 966

Volume


  • 783-786