Thermal shock behavior of W–ZrC/Sc2O3 composites under two different transient events by electron and laser irradiation

Hong Yu Chen, Lai Ma Luo, Xiang Zan, Qiu Xu, Kazutoshi Tokunaga, Jia Qin Liu, Xiao Yong Zhu, Ji Gui Cheng, Yu Cheng Wu

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The transient thermal shock behaviors of W–ZrC/Sc2O3 composites with different ZrC contents were evaluated using transient thermal shock test by electron and laser beams. The effects of different ZrC doping contents on the surface morphology and thermal shock resistance of W–ZrC/Sc2O3 composites were then investigated. Similarity and difference between effects of electron and laser beam transient heat loading were also discussed in this study. Repeated heat loading resulted in thermal fatigue of the irradiated W–ZrC/Sc2O3 samples by thermal stress, leading to the rough surface morphologies with cracks. After different transient thermal tests, significant surface roughening, cracks, surface melting, and droplet ejection occurred. W–2vol.%Sc2O3 sample has superior thermal properties and greater resistance to surface modifications under transient thermal shock, and with the increasing ZrC content in W alloys, thermal shock resistance of W–Zr/Sc2O3 sample tends to be unsatisfied.

Original languageEnglish
Pages (from-to)248-255
Number of pages8
JournalJournal of Nuclear Materials
Volume499
DOIs
Publication statusPublished - Feb 1 2018

Fingerprint

thermal shock
Electron irradiation
Thermal shock
Laser beam effects
electron irradiation
irradiation
composite materials
Composite materials
shock resistance
lasers
Laser beams
Surface morphology
Electron beams
shock tests
laser beams
electron beams
Cracks
thermal fatigue
heat
Thermal fatigue

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Materials Science(all)

Cite this

Thermal shock behavior of W–ZrC/Sc2O3 composites under two different transient events by electron and laser irradiation. / Chen, Hong Yu; Luo, Lai Ma; Zan, Xiang; Xu, Qiu; Tokunaga, Kazutoshi; Liu, Jia Qin; Zhu, Xiao Yong; Cheng, Ji Gui; Wu, Yu Cheng.

In: Journal of Nuclear Materials, Vol. 499, 01.02.2018, p. 248-255.

Research output: Contribution to journalArticle

Chen, Hong Yu ; Luo, Lai Ma ; Zan, Xiang ; Xu, Qiu ; Tokunaga, Kazutoshi ; Liu, Jia Qin ; Zhu, Xiao Yong ; Cheng, Ji Gui ; Wu, Yu Cheng. / Thermal shock behavior of W–ZrC/Sc2O3 composites under two different transient events by electron and laser irradiation. In: Journal of Nuclear Materials. 2018 ; Vol. 499. pp. 248-255.
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AU - Xu, Qiu

AU - Tokunaga, Kazutoshi

AU - Liu, Jia Qin

AU - Zhu, Xiao Yong

AU - Cheng, Ji Gui

AU - Wu, Yu Cheng

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