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δ-Hydride Habit Plane Determination in α-Zirconium at 298 K by Strain Energy Minimization Technique

Singh, R N ; Ståhle, Per LU ; Banks-Sills, Leslie LU ; Ristinmaa, Matti LU orcid and Banerjee, S (2008) In Defect and Diffusion Forum 279. p.105-110
Abstract
Hydrogen in excess of solid solubility precipitates as hydride phase of plate shaped morphology in hcp α-Zr with the broad face of the hydride plate coinciding with certain crystallographic plane of α-Zr crystal called habit plane. The objective of the present investigation is to predict the habit plane of δ-hydride precipitating in α-Zr at 298 K using strain energy minimization technique. The δ-hydride phase is modeled to undergo isotropic elasto-plastic deformation. The α-Zr phase was modeled to undergo transverse isotropic elastic deformation but isotropic plastic deformation. Accommodation strain energy of δ-hydride forming in α-Zr crystal was computed using initial strain method as a function of hydride nuclei orientation. Hydride was... (More)
Hydrogen in excess of solid solubility precipitates as hydride phase of plate shaped morphology in hcp α-Zr with the broad face of the hydride plate coinciding with certain crystallographic plane of α-Zr crystal called habit plane. The objective of the present investigation is to predict the habit plane of δ-hydride precipitating in α-Zr at 298 K using strain energy minimization technique. The δ-hydride phase is modeled to undergo isotropic elasto-plastic deformation. The α-Zr phase was modeled to undergo transverse isotropic elastic deformation but isotropic plastic deformation. Accommodation strain energy of δ-hydride forming in α-Zr crystal was computed using initial strain method as a function of hydride nuclei orientation. Hydride was modeled as disk with round edge. Contrary to several habit planes reported in literature for δ- hydrides precipitating in α-Zr crystal, the total accommodation energy minima at 298 K suggests only basal plane i.e. (0001) as the habit plane. (Less)
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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Defect and Diffusion Forum
volume
279
pages
105 - 110
publisher
Trans Tech Publications
external identifiers
  • scopus:53549123271
ISSN
1012-0386
DOI
10.4028/www.scientific.net/DDF.279.105
language
English
LU publication?
yes
id
faae6bd6-ca3a-4bbd-8681-b2ab323958de (old id 1278787)
date added to LUP
2016-04-04 13:57:08
date last changed
2022-03-31 21:43:27
@article{faae6bd6-ca3a-4bbd-8681-b2ab323958de,
  abstract     = {{Hydrogen in excess of solid solubility precipitates as hydride phase of plate shaped morphology in hcp α-Zr with the broad face of the hydride plate coinciding with certain crystallographic plane of α-Zr crystal called habit plane. The objective of the present investigation is to predict the habit plane of δ-hydride precipitating in α-Zr at 298 K using strain energy minimization technique. The δ-hydride phase is modeled to undergo isotropic elasto-plastic deformation. The α-Zr phase was modeled to undergo transverse isotropic elastic deformation but isotropic plastic deformation. Accommodation strain energy of δ-hydride forming in α-Zr crystal was computed using initial strain method as a function of hydride nuclei orientation. Hydride was modeled as disk with round edge. Contrary to several habit planes reported in literature for δ- hydrides precipitating in α-Zr crystal, the total accommodation energy minima at 298 K suggests only basal plane i.e. (0001) as the habit plane.}},
  author       = {{Singh, R N and Ståhle, Per and Banks-Sills, Leslie and Ristinmaa, Matti and Banerjee, S}},
  issn         = {{1012-0386}},
  language     = {{eng}},
  pages        = {{105--110}},
  publisher    = {{Trans Tech Publications}},
  series       = {{Defect and Diffusion Forum}},
  title        = {{δ-Hydride Habit Plane Determination in α-Zirconium at 298 K by Strain Energy Minimization Technique}},
  url          = {{http://dx.doi.org/10.4028/www.scientific.net/DDF.279.105}},
  doi          = {{10.4028/www.scientific.net/DDF.279.105}},
  volume       = {{279}},
  year         = {{2008}},
}