Role of layered structure in ductility improvement of Ti-B4C/Al composite fabricated by pulse current sintering

H. S. Chen; W. X. Wang; H. H. Nie; T. M. Sun; T. Yang; J. Zhou

doi:10.1080/09276440.2020.1728119

Role of layered structure in ductility improvement of Ti-B₄C/Al composite fabricated by pulse current sintering

H. S. Chen, W. X. Wang, H. H. Nie, T. M. Sun, T. Yang, J. Zhou

School of Engineering (Behrend)

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

1 Scopus citations

Abstract

In this study, a novel structure of layered Ti-B₄C/AA6061 composite with different B₄C particles contents was designed and fabricated by pulse current sintering, and its microstructure and mechanical properties were investigated. It is found that the heterogeneous interface bonds well without voids and cracks and the B₄C particles exhibit a homogenous distribution in AA6061matrix. The intermetallic compounds (Ti _x Al _y) are observed with a thickness of about 1.5 μm between Ti and B₄C/AA6061 layers. The yield strength, ultimate tensile strength and elongation to fracture of the layered Ti-B₄C/AA6061 composite are obviously enhanced. In addition, the Ti layers and the B₄C particles embedded in the matrix play an important role in strengthening mechanisms of the layered composite, and the crack propagation is constrained by layered structure.

Original language	English (US)
Pages (from-to)	115-127
Number of pages	13
Journal	Composite Interfaces
Volume	28
Issue number	2
DOIs	https://doi.org/10.1080/09276440.2020.1728119
State	Published - 2021

All Science Journal Classification (ASJC) codes

Ceramics and Composites
General Physics and Astronomy
Surfaces, Coatings and Films

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10.1080/09276440.2020.1728119

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title = "Role of layered structure in ductility improvement of Ti-B4C/Al composite fabricated by pulse current sintering",

abstract = "In this study, a novel structure of layered Ti-B4C/AA6061 composite with different B4C particles contents was designed and fabricated by pulse current sintering, and its microstructure and mechanical properties were investigated. It is found that the heterogeneous interface bonds well without voids and cracks and the B4C particles exhibit a homogenous distribution in AA6061matrix. The intermetallic compounds (Ti x Al y) are observed with a thickness of about 1.5 μm between Ti and B4C/AA6061 layers. The yield strength, ultimate tensile strength and elongation to fracture of the layered Ti-B4C/AA6061 composite are obviously enhanced. In addition, the Ti layers and the B4C particles embedded in the matrix play an important role in strengthening mechanisms of the layered composite, and the crack propagation is constrained by layered structure.",

author = "Chen, {H. S.} and Wang, {W. X.} and Nie, {H. H.} and Sun, {T. M.} and T. Yang and J. Zhou",

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year = "2021",

doi = "10.1080/09276440.2020.1728119",

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T1 - Role of layered structure in ductility improvement of Ti-B4C/Al composite fabricated by pulse current sintering

AU - Chen, H. S.

AU - Wang, W. X.

AU - Nie, H. H.

AU - Sun, T. M.

AU - Yang, T.

AU - Zhou, J.

PY - 2021

Y1 - 2021

N2 - In this study, a novel structure of layered Ti-B4C/AA6061 composite with different B4C particles contents was designed and fabricated by pulse current sintering, and its microstructure and mechanical properties were investigated. It is found that the heterogeneous interface bonds well without voids and cracks and the B4C particles exhibit a homogenous distribution in AA6061matrix. The intermetallic compounds (Ti x Al y) are observed with a thickness of about 1.5 μm between Ti and B4C/AA6061 layers. The yield strength, ultimate tensile strength and elongation to fracture of the layered Ti-B4C/AA6061 composite are obviously enhanced. In addition, the Ti layers and the B4C particles embedded in the matrix play an important role in strengthening mechanisms of the layered composite, and the crack propagation is constrained by layered structure.

AB - In this study, a novel structure of layered Ti-B4C/AA6061 composite with different B4C particles contents was designed and fabricated by pulse current sintering, and its microstructure and mechanical properties were investigated. It is found that the heterogeneous interface bonds well without voids and cracks and the B4C particles exhibit a homogenous distribution in AA6061matrix. The intermetallic compounds (Ti x Al y) are observed with a thickness of about 1.5 μm between Ti and B4C/AA6061 layers. The yield strength, ultimate tensile strength and elongation to fracture of the layered Ti-B4C/AA6061 composite are obviously enhanced. In addition, the Ti layers and the B4C particles embedded in the matrix play an important role in strengthening mechanisms of the layered composite, and the crack propagation is constrained by layered structure.

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Role of layered structure in ductility improvement of Ti-B₄C/Al composite fabricated by pulse current sintering

Abstract

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