A novel neutron shielding AA6061/ B4C laminar composite fabricated by powder metallurgy:“SPS-HER”

Hongsheng Chen; Huihui Nie; Wenxian Wang; Jun Zhou; Runfeng Liu

doi:10.1016/j.jallcom.2019.07.133

A novel neutron shielding AA6061/ B₄C laminar composite fabricated by powder metallurgy:“SPS-HER”

Hongsheng Chen, Huihui Nie, Wenxian Wang, Jun Zhou, Runfeng Liu

School of Engineering (Behrend)

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

In this study, novel-structured (Type A and Type B) laminar A6061/B₄C neutron absorber composites were designed and fabricated using spark plasma sintering followed by hot extrusion and rolling (SPS-HER). It was found that B₄C particles were evenly distributed in the fabricated composites. The interfaces between particle/matrix and different layers were bonded well. After hot rolling, regions containing large orientation gradient and high dislocation density were found near the B₄C particles, which helped dynamic recrystallization (DRX) and grain refinement in the composite. Compared with that of the as-extruded AA6061/B₄C laminar composite, yield and ultimate tensile strengths of the as-rolled AA6061/B₄C laminar composite are clearly improved. Two yield points were noticed in the material during the tensile test. The composite containing high B₄C particle content was found easy to fracture and the fracture mode was ductile.

Original language	English (US)
Pages (from-to)	1445-1452
Number of pages	8
Journal	Journal of Alloys and Compounds
Volume	806
DOIs	https://doi.org/10.1016/j.jallcom.2019.07.133
State	Published - Oct 25 2019

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.jallcom.2019.07.133

Cite this

@article{8fe4dd5598444cdca1de231d2c67c45f,

title = "A novel neutron shielding AA6061/ B4C laminar composite fabricated by powder metallurgy:“SPS-HER”",

abstract = "In this study, novel-structured (Type A and Type B) laminar A6061/B4C neutron absorber composites were designed and fabricated using spark plasma sintering followed by hot extrusion and rolling (SPS-HER). It was found that B4C particles were evenly distributed in the fabricated composites. The interfaces between particle/matrix and different layers were bonded well. After hot rolling, regions containing large orientation gradient and high dislocation density were found near the B4C particles, which helped dynamic recrystallization (DRX) and grain refinement in the composite. Compared with that of the as-extruded AA6061/B4C laminar composite, yield and ultimate tensile strengths of the as-rolled AA6061/B4C laminar composite are clearly improved. Two yield points were noticed in the material during the tensile test. The composite containing high B4C particle content was found easy to fracture and the fracture mode was ductile.",

author = "Hongsheng Chen and Huihui Nie and Wenxian Wang and Jun Zhou and Runfeng Liu",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2019",

month = oct,

day = "25",

doi = "10.1016/j.jallcom.2019.07.133",

language = "English (US)",

volume = "806",

pages = "1445--1452",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - A novel neutron shielding AA6061/ B4C laminar composite fabricated by powder metallurgy:“SPS-HER”

AU - Chen, Hongsheng

AU - Nie, Huihui

AU - Wang, Wenxian

AU - Zhou, Jun

AU - Liu, Runfeng

PY - 2019/10/25

Y1 - 2019/10/25

N2 - In this study, novel-structured (Type A and Type B) laminar A6061/B4C neutron absorber composites were designed and fabricated using spark plasma sintering followed by hot extrusion and rolling (SPS-HER). It was found that B4C particles were evenly distributed in the fabricated composites. The interfaces between particle/matrix and different layers were bonded well. After hot rolling, regions containing large orientation gradient and high dislocation density were found near the B4C particles, which helped dynamic recrystallization (DRX) and grain refinement in the composite. Compared with that of the as-extruded AA6061/B4C laminar composite, yield and ultimate tensile strengths of the as-rolled AA6061/B4C laminar composite are clearly improved. Two yield points were noticed in the material during the tensile test. The composite containing high B4C particle content was found easy to fracture and the fracture mode was ductile.

AB - In this study, novel-structured (Type A and Type B) laminar A6061/B4C neutron absorber composites were designed and fabricated using spark plasma sintering followed by hot extrusion and rolling (SPS-HER). It was found that B4C particles were evenly distributed in the fabricated composites. The interfaces between particle/matrix and different layers were bonded well. After hot rolling, regions containing large orientation gradient and high dislocation density were found near the B4C particles, which helped dynamic recrystallization (DRX) and grain refinement in the composite. Compared with that of the as-extruded AA6061/B4C laminar composite, yield and ultimate tensile strengths of the as-rolled AA6061/B4C laminar composite are clearly improved. Two yield points were noticed in the material during the tensile test. The composite containing high B4C particle content was found easy to fracture and the fracture mode was ductile.

UR - https://www.scopus.com/pages/publications/85070062516

UR - https://www.scopus.com/inward/citedby.url?scp=85070062516&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2019.07.133

DO - 10.1016/j.jallcom.2019.07.133

M3 - Article

AN - SCOPUS:85070062516

SN - 0925-8388

VL - 806

SP - 1445

EP - 1452

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

A novel neutron shielding AA6061/ B₄C laminar composite fabricated by powder metallurgy:“SPS-HER”

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this