Microstructure and mechanical properties of B 4 C/6061Al neutron absorber composite tube fabricated by spark plasma sintering and hot spinning

Hong sheng Chen, Hui hui Nie, Jun Zhou, Wang xian Wang, Peng Zhang, Yu yang Zhang, Jin Feng Wang, Run feng Liu

Research output: Contribution to journalReview article

Abstract

In this study, a B 4 C/6061Al neutron absorber composite (NAC) tube containing 5 wt.% B 4 C particle was first fabricated by spark plasma sintering (SPS) followed by hot spinning (HS), then its microstructure and mechanical properties were experimentally investigated. It was found that, through spinning, B 4 C particles were better distributed in the 6061 Al matrix and the bonding of the B 4 C/6061Al matrix interface was improved. Dislocation pileups around B 4 C particles and dislocation loops were both observed. B 4 C particles could promote dynamic recrystallized nucleation and pin grain boundaries, resulting in grain refinement in the material. The yield strength (YS), ultimate tensile strength (UTS), and elongation of the spinned composite tube were found higher than that of the SPSed composite tube. The strength improvement of the fabricated B 4 C/6061Al neutron absorber composite tube was mainly due to the dislocation strengthening mechanism and grain refinement through spinning.

Original languageEnglish (US)
Pages (from-to)393-400
Number of pages8
JournalJournal of Nuclear Materials
Volume517
DOIs
StatePublished - Apr 15 2019

Fingerprint

neutron absorbers
Spark plasma sintering
sparks
metal spinning
sintering
Neutrons
mechanical properties
tubes
Mechanical properties
microstructure
Microstructure
composite materials
Grain refinement
Composite materials
Strengthening (metal)
yield strength
matrices
tensile strength
elongation
Yield stress

All Science Journal Classification (ASJC) codes

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

Cite this

Chen, Hong sheng ; Nie, Hui hui ; Zhou, Jun ; Wang, Wang xian ; Zhang, Peng ; Zhang, Yu yang ; Wang, Jin Feng ; Liu, Run feng. / Microstructure and mechanical properties of B 4 C/6061Al neutron absorber composite tube fabricated by spark plasma sintering and hot spinning In: Journal of Nuclear Materials. 2019 ; Vol. 517. pp. 393-400.
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abstract = "In this study, a B 4 C/6061Al neutron absorber composite (NAC) tube containing 5 wt.{\%} B 4 C particle was first fabricated by spark plasma sintering (SPS) followed by hot spinning (HS), then its microstructure and mechanical properties were experimentally investigated. It was found that, through spinning, B 4 C particles were better distributed in the 6061 Al matrix and the bonding of the B 4 C/6061Al matrix interface was improved. Dislocation pileups around B 4 C particles and dislocation loops were both observed. B 4 C particles could promote dynamic recrystallized nucleation and pin grain boundaries, resulting in grain refinement in the material. The yield strength (YS), ultimate tensile strength (UTS), and elongation of the spinned composite tube were found higher than that of the SPSed composite tube. The strength improvement of the fabricated B 4 C/6061Al neutron absorber composite tube was mainly due to the dislocation strengthening mechanism and grain refinement through spinning.",
author = "Chen, {Hong sheng} and Nie, {Hui hui} and Jun Zhou and Wang, {Wang xian} and Peng Zhang and Zhang, {Yu yang} and Wang, {Jin Feng} and Liu, {Run feng}",
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Microstructure and mechanical properties of B 4 C/6061Al neutron absorber composite tube fabricated by spark plasma sintering and hot spinning . / Chen, Hong sheng; Nie, Hui hui; Zhou, Jun; Wang, Wang xian; Zhang, Peng; Zhang, Yu yang; Wang, Jin Feng; Liu, Run feng.

In: Journal of Nuclear Materials, Vol. 517, 15.04.2019, p. 393-400.

Research output: Contribution to journalReview article

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T1 - Microstructure and mechanical properties of B 4 C/6061Al neutron absorber composite tube fabricated by spark plasma sintering and hot spinning

AU - Chen, Hong sheng

AU - Nie, Hui hui

AU - Zhou, Jun

AU - Wang, Wang xian

AU - Zhang, Peng

AU - Zhang, Yu yang

AU - Wang, Jin Feng

AU - Liu, Run feng

PY - 2019/4/15

Y1 - 2019/4/15

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AB - In this study, a B 4 C/6061Al neutron absorber composite (NAC) tube containing 5 wt.% B 4 C particle was first fabricated by spark plasma sintering (SPS) followed by hot spinning (HS), then its microstructure and mechanical properties were experimentally investigated. It was found that, through spinning, B 4 C particles were better distributed in the 6061 Al matrix and the bonding of the B 4 C/6061Al matrix interface was improved. Dislocation pileups around B 4 C particles and dislocation loops were both observed. B 4 C particles could promote dynamic recrystallized nucleation and pin grain boundaries, resulting in grain refinement in the material. The yield strength (YS), ultimate tensile strength (UTS), and elongation of the spinned composite tube were found higher than that of the SPSed composite tube. The strength improvement of the fabricated B 4 C/6061Al neutron absorber composite tube was mainly due to the dislocation strengthening mechanism and grain refinement through spinning.

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