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Computational Model of Crack Propagation in Bimetallic Materials for High Concentrations of Hydrogen and High Temperatures

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Materials Science Aims and scope

We proposed a computational model for the determination of the kinetics of propagation of hydrogen cracks in a body caused by high pressures in these cracks formed due to ultrahigh hydrogen concentrations in the body. The model is based on the deformation criterion of fracture mechanics with regard for the hydrogen concentration, the mechanism of jumplike propagation of hydrogen cracks, and the Fick laws of heat and mass transfer. Using this model, we investigate the kinetics of propagation of a hydrogen crack over the surface of fusion of the base materia with protective coating in the shell of an oilhydrocracking reactor.

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Authors and Affiliations

  1. I. Franko L’viv National University, Lviv, Ukraine

    O. E. Andreikiv & N. V. Yavors’ka

  2. Luts’k National Technical University, Luts’k, Ukraine

    L. N. Dobrovol’s’ka

Authors
  1. O. E. Andreikiv
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  2. L. N. Dobrovol’s’ka
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  3. N. V. Yavors’ka
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Correspondence to N. V. Yavors’ka.

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Translated from Fizyko-Khimichna Mekhanika Materialiv, Vol. 51, No. 1, pp. 71–79, January–February, 2015.

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Andreikiv, O.E., Dobrovol’s’ka, L.N. & Yavors’ka, N.V. Computational Model of Crack Propagation in Bimetallic Materials for High Concentrations of Hydrogen and High Temperatures. Mater Sci 51, 76–87 (2015). https://doi.org/10.1007/s11003-015-9812-1

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  • DOI: https://doi.org/10.1007/s11003-015-9812-1

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