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Hydrogen accommodation in Zr second phase particles: Implications for H pick-up and hydriding of Zircaloy-2 and Zircaloy-4

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Hydrogen accommodation in Zr second phase particles : Implications for H pick-up and hydriding of Zircaloy-2 and Zircaloy-4. / Burr, P. A.; Murphy, S. T.; Lumley, S. C.; Wenman, M. R.; Grimes, R. W.

In: Corrosion Science, Vol. 69, 04.2013, p. 1-4.

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Burr, P. A. ; Murphy, S. T. ; Lumley, S. C. ; Wenman, M. R. ; Grimes, R. W. / Hydrogen accommodation in Zr second phase particles : Implications for H pick-up and hydriding of Zircaloy-2 and Zircaloy-4. In: Corrosion Science. 2013 ; Vol. 69. pp. 1-4.

Bibtex

@article{049b5486994846c4931b7c5c3e5b3ecc,
title = "Hydrogen accommodation in Zr second phase particles: Implications for H pick-up and hydriding of Zircaloy-2 and Zircaloy-4",
abstract = "Ab-initio computer simulations have been used to predict the energies associated with the accommodation of H atoms at interstitial sites in alpha,beta-Zr and Zr-M intermetallics formed with common alloying additions (M = Cr, Fe, Ni). Intermetallics that relate to the Zr-2(Ni,Fe) second phase particles (SPPs) found in Zircaloy-2 exhibit favourable solution enthalpies for H. The intermetallic phases that relate to the Zr(Cr,Fe)(2) SPPs, found predominantly in Zircaloy-4, do not offer favourable sites for interstitial H. It is proposed that Zr(Cr,Fe)(2) particles may act as bridges for the migration of H through the oxide layer, whilst the Zr-2(Ni,Fe)-type particles will trap the migrating H until these are dissolved or fully oxidised. (C) 2012 Elsevier Ltd. All rights reserved.",
keywords = "Zirconium, Intermetallics, Hydrogen absorption, TRANSMISSION ELECTRON-MICROSCOPY, ZIRCONIUM ALLOYS, CORROSION, SOLUBILITY, ABSORPTION, MECHANISM, SYSTEM",
author = "Burr, {P. A.} and Murphy, {S. T.} and Lumley, {S. C.} and Wenman, {M. R.} and Grimes, {R. W.}",
year = "2013",
month = apr,
doi = "10.1016/j.corsci.2012.11.036",
language = "English",
volume = "69",
pages = "1--4",
journal = "Corrosion Science",
issn = "0010-938X",
publisher = "National Assoc. of Corrosion Engineers International",

}

RIS

TY - JOUR

T1 - Hydrogen accommodation in Zr second phase particles

T2 - Implications for H pick-up and hydriding of Zircaloy-2 and Zircaloy-4

AU - Burr, P. A.

AU - Murphy, S. T.

AU - Lumley, S. C.

AU - Wenman, M. R.

AU - Grimes, R. W.

PY - 2013/4

Y1 - 2013/4

N2 - Ab-initio computer simulations have been used to predict the energies associated with the accommodation of H atoms at interstitial sites in alpha,beta-Zr and Zr-M intermetallics formed with common alloying additions (M = Cr, Fe, Ni). Intermetallics that relate to the Zr-2(Ni,Fe) second phase particles (SPPs) found in Zircaloy-2 exhibit favourable solution enthalpies for H. The intermetallic phases that relate to the Zr(Cr,Fe)(2) SPPs, found predominantly in Zircaloy-4, do not offer favourable sites for interstitial H. It is proposed that Zr(Cr,Fe)(2) particles may act as bridges for the migration of H through the oxide layer, whilst the Zr-2(Ni,Fe)-type particles will trap the migrating H until these are dissolved or fully oxidised. (C) 2012 Elsevier Ltd. All rights reserved.

AB - Ab-initio computer simulations have been used to predict the energies associated with the accommodation of H atoms at interstitial sites in alpha,beta-Zr and Zr-M intermetallics formed with common alloying additions (M = Cr, Fe, Ni). Intermetallics that relate to the Zr-2(Ni,Fe) second phase particles (SPPs) found in Zircaloy-2 exhibit favourable solution enthalpies for H. The intermetallic phases that relate to the Zr(Cr,Fe)(2) SPPs, found predominantly in Zircaloy-4, do not offer favourable sites for interstitial H. It is proposed that Zr(Cr,Fe)(2) particles may act as bridges for the migration of H through the oxide layer, whilst the Zr-2(Ni,Fe)-type particles will trap the migrating H until these are dissolved or fully oxidised. (C) 2012 Elsevier Ltd. All rights reserved.

KW - Zirconium

KW - Intermetallics

KW - Hydrogen absorption

KW - TRANSMISSION ELECTRON-MICROSCOPY

KW - ZIRCONIUM ALLOYS

KW - CORROSION

KW - SOLUBILITY

KW - ABSORPTION

KW - MECHANISM

KW - SYSTEM

U2 - 10.1016/j.corsci.2012.11.036

DO - 10.1016/j.corsci.2012.11.036

M3 - Journal article

VL - 69

SP - 1

EP - 4

JO - Corrosion Science

JF - Corrosion Science

SN - 0010-938X

ER -