Issues »  Volume 39, Issue 4

Hydrogen Grain Boundary Segregation and Migration in the Alpha-Iron

V. G. Gavriljuk, S. M. Teus

G.V. Kurdyumov Institute for Metal Physics, NAS of Ukraine, 36 Academician Vernadsky Blvd., UA-03680 Kyiv-142, Ukraine

Received: 15.03.2017. Download: PDF

Based on the difference in diffusion mechanisms of substitutional and interstitial atoms and using molecular dynamics simulation of hydrogen migration, it is shown that accelerated hydrogen flux in the polycrystalline iron observed during cathodic charging cannot originate from the enhanced hydrogen grain-boundary diffusion. A possible role of grain-boundary cracking is supposed.

Key words: hydrogen diffusion, grain boundaries, molecular dynamics simulation.

URL: http://mfint.imp.kiev.ua/en/abstract/v39/i04/0457.html

DOI: https://doi.org/10.15407/mfint.39.04.0457

PACS: 61.43.Bn, 61.72.J-, 61.72.Mm, 66.30.J-, 67.63.Cd, 67.63.Gh

Citation: V. G. Gavriljuk and S. M. Teus, Hydrogen Grain Boundary Segregation and Migration in the Alpha-Iron, Metallofiz. Noveishie Tekhnol., 39, No. 4: 457—464 (2017)

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