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Hydrogen absorption cracking of zirconium alloy in the application of nuclear industry

The hydrogen absorption cracking behavior of Zr-4 has been investigated based on the microstructure, hydrogen absorption amount as well as residual stress. The results show that the grain size has a pronounced effect on the hydrogen absorption cracking, with the increase of grain size from 30 μm to... Full description

Journal Title: International Journal of Hydrogen Energy 21 August 2013, Vol.38(25), pp.10903-10911
Main Author: Zhao, Chao
Other Authors: Song, Xiping , Yang, Yun , Zhang, Bei
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0360-3199 ; E-ISSN: 1879-3487 ; DOI: 10.1016/j.ijhydene.2013.01.009
Link: https://www.sciencedirect.com/science/article/pii/S036031991300061X
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recordid: elsevier_sdoi_10_1016_j_ijhydene_2013_01_009
title: Hydrogen absorption cracking of zirconium alloy in the application of nuclear industry
format: Article
creator:
  • Zhao, Chao
  • Song, Xiping
  • Yang, Yun
  • Zhang, Bei
subjects:
  • Zirconium Alloys
  • Hydrogen Absorption Amount
  • Microstructure
  • Cracking
  • Engineering
ispartof: International Journal of Hydrogen Energy, 21 August 2013, Vol.38(25), pp.10903-10911
description: The hydrogen absorption cracking behavior of Zr-4 has been investigated based on the microstructure, hydrogen absorption amount as well as residual stress. The results show that the grain size has a pronounced effect on the hydrogen absorption cracking, with the increase of grain size from 30 μm to 500 μm, the cracks vary from small cracks of independence to large cracks that connect with each other along the radial direction. The unsaturated hydrogen absorption samples which consist of γ- and δ-hydrides present a crack-free surface while the saturated hydrogen absorption samples which consist of ɛ-hydride exhibit not only large cracks but also bulges on the surface. The hydride decomposition temperatures of ɛ → δ and δ → α during dehydriding are determined to be about 600 °C and 700 °C respectively. In the unsaturated hydrogen absorption samples, both the thickness expansion and radial residual stress present a positive liner correlation with the hydrogen absorption amount. Based...
language: eng
source:
identifier: ISSN: 0360-3199 ; E-ISSN: 1879-3487 ; DOI: 10.1016/j.ijhydene.2013.01.009
fulltext: no_fulltext
issn:
  • 0360-3199
  • 03603199
  • 1879-3487
  • 18793487
url: Link


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titleHydrogen absorption cracking of zirconium alloy in the application of nuclear industry
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subjectZirconium Alloys ; Hydrogen Absorption Amount ; Microstructure ; Cracking ; Engineering
descriptionThe hydrogen absorption cracking behavior of Zr-4 has been investigated based on the microstructure, hydrogen absorption amount as well as residual stress. The results show that the grain size has a pronounced effect on the hydrogen absorption cracking, with the increase of grain size from 30 μm to 500 μm, the cracks vary from small cracks of independence to large cracks that connect with each other along the radial direction. The unsaturated hydrogen absorption samples which consist of γ- and δ-hydrides present a crack-free surface while the saturated hydrogen absorption samples which consist of ɛ-hydride exhibit not only large cracks but also bulges on the surface. The hydride decomposition temperatures of ɛ → δ and δ → α during dehydriding are determined to be about 600 °C and 700 °C respectively. In the unsaturated hydrogen absorption samples, both the thickness expansion and radial residual stress present a positive liner correlation with the hydrogen absorption amount. Based...
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The hydrogen absorption cracking behavior of Zr-4 has been investigated based on the microstructure, hydrogen absorption amount as well as residual stress. The results show that the grain size has a pronounced effect on the hydrogen absorption cracking, with the increase of grain size from 30 μm to 500 μm, the cracks vary from small cracks of independence to large cracks that connect with each other along the radial direction. The unsaturated hydrogen absorption samples which consist of γ- and δ-hydrides present a crack-free surface while the saturated hydrogen absorption samples which consist of ɛ-hydride exhibit not only large cracks but also bulges on the surface. The hydride decomposition temperatures of ɛ → δ and δ → α during dehydriding are determined to be about 600 °C and 700 °C respectively. In the unsaturated hydrogen absorption samples, both the thickness expansion and radial residual stress present a positive liner correlation with the hydrogen absorption amount. Based...

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The hydrogen absorption cracking behavior of Zr-4 has been investigated based on the microstructure, hydrogen absorption amount as well as residual stress. The results show that the grain size has a pronounced effect on the hydrogen absorption cracking, with the increase of grain size from 30 μm to 500 μm, the cracks vary from small cracks of independence to large cracks that connect with each other along the radial direction. The unsaturated hydrogen absorption samples which consist of γ- and δ-hydrides present a crack-free surface while the saturated hydrogen absorption samples which consist of ɛ-hydride exhibit not only large cracks but also bulges on the surface. The hydride decomposition temperatures of ɛ → δ and δ → α during dehydriding are determined to be about 600 °C and 700 °C respectively. In the unsaturated hydrogen absorption samples, both the thickness expansion and radial residual stress present a positive liner correlation with the hydrogen absorption amount. Based...

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lad01International Journal of Hydrogen Energy
date2013-08-21