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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 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
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 Ltd
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
2009-02-13 11:40:27
date last changed
2016-10-13 04:58:47
@misc{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    = {ARRAY(0xaf021c8)},
  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},
  volume       = {279},
  year         = {2008},
}