Effect of pre-hydriding on the burst behavior of the zirconium gadding under loss-of-cooiant accident condition

Do Wan Lim, Dong Jun Park, Jeong Yong Park, Ho Jang, Jong Sung Yoo, Yong Kyoon Mok, Jung Min Suh, Kang Moon Lee

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

To investigate the effects of hydrogen on the rupture behavior and mechanical property of ballooned-zirconium cladding after a loss-of-coolant accident, simulated loss-of-coolant-accident tests were carried out using pressurized-zirconium-tube samples with and without hydrogen pre-charging. A prehydrided cladding sample showed lower deformation in the ballooned area and lower rupture temperature than the as-received cladding sample. Ballooned cladding without hydrogen charging showed no significant difference in mechanical property, in spite of a wide range of values for circumferential strain and of a different balloon shape caused by a different heating rate. Pre-hydrided cladding, however, showed an increase in maximum load with increasing heating-rate. The strong relationship between hydrogen content and burst behavior during the loss-of-coolant accident was analyzed and the mechanism by which hydrogen hardens zirconium alloy was explained.

Original languageEnglish
Pages (from-to)493-502
Number of pages10
JournalJournal of Korean Institute of Metals and Materials
Volume52
Issue number7
DOIs
Publication statusPublished - 2014 Jan 1

Fingerprint

Burst
Accidents
Zirconium
Hydrogen
Loss of coolant accidents
Rupture
Heating rate
Mechanical Properties
Heating
Zirconium alloys
Mechanical properties
Balloon
Balloons
Tube
Range of data
Temperature

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Metals and Alloys
  • Surfaces, Coatings and Films
  • Modelling and Simulation

Cite this

Effect of pre-hydriding on the burst behavior of the zirconium gadding under loss-of-cooiant accident condition. / Lim, Do Wan; Park, Dong Jun; Park, Jeong Yong; Jang, Ho; Yoo, Jong Sung; Mok, Yong Kyoon; Suh, Jung Min; Lee, Kang Moon.

In: Journal of Korean Institute of Metals and Materials, Vol. 52, No. 7, 01.01.2014, p. 493-502.

Research output: Contribution to journalArticle

Lim, Do Wan ; Park, Dong Jun ; Park, Jeong Yong ; Jang, Ho ; Yoo, Jong Sung ; Mok, Yong Kyoon ; Suh, Jung Min ; Lee, Kang Moon. / Effect of pre-hydriding on the burst behavior of the zirconium gadding under loss-of-cooiant accident condition. In: Journal of Korean Institute of Metals and Materials. 2014 ; Vol. 52, No. 7. pp. 493-502.
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