Development and characterization of Al–Al3Ni–Sn metal matrix composite

Z. Gxowa-Penxa; P. Daswa; R. Modiba; M. N. Mathabathe; A. S. Bolokang

doi:10.1016/j.matchemphys.2020.124027

Development and characterization of Al–Al₃Ni–Sn metal matrix composite

Z. Gxowa-Penxa, P. Daswa, R. Modiba, M. N. Mathabathe, A. S. Bolokang

Council for Scientific and Industrial Research

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

21 Citations (Scopus)

Abstract

The Al–Al₃Ni–Sn composite was developed using a powder compassion and sintering metallurgical processing route. Microstructures of the sintered samples revealed the combination of a globular, chain-like and elliptic (raindrop) Al₃Ni phases. The differential scanning calorimetry (DSC) analysis confirmed the high temperature stability of the composite. After heat treatment conducted at 500 °C, the Al₃Ni chain-like phase in the matrix transformed to raindrop particles. The presence of the Al₃Ni intermetallic compound had a positive effect on the hardness since the Al–Al₃Ni–Sn composite was harder in comparison to the A356 aluminium alloy. Microstructures were analysed using the LEO 1525 field-emission scanning electron microscope (FE-SEM). The XPS scanned spectra of the A356-Ni-Sn alloy revealed the Al2p, Si2p, C1s, Sn3d5, O1s, Ni2p3 and Mg1s intensity peaks.

Original language	English
Article number	124027
Journal	Materials Chemistry and Physics
Volume	259
DOIs	https://doi.org/10.1016/j.matchemphys.2020.124027
Publication status	Published - 1 Feb 2021
Externally published	Yes

Keywords

AlNi
Alloy development
Al–AlNi–Sn composite
Morphology

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics

Access to Document

10.1016/j.matchemphys.2020.124027

Cite this

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title = "Development and characterization of Al–Al3Ni–Sn metal matrix composite",

abstract = "The Al–Al3Ni–Sn composite was developed using a powder compassion and sintering metallurgical processing route. Microstructures of the sintered samples revealed the combination of a globular, chain-like and elliptic (raindrop) Al3Ni phases. The differential scanning calorimetry (DSC) analysis confirmed the high temperature stability of the composite. After heat treatment conducted at 500 °C, the Al3Ni chain-like phase in the matrix transformed to raindrop particles. The presence of the Al3Ni intermetallic compound had a positive effect on the hardness since the Al–Al3Ni–Sn composite was harder in comparison to the A356 aluminium alloy. Microstructures were analysed using the LEO 1525 field-emission scanning electron microscope (FE-SEM). The XPS scanned spectra of the A356-Ni-Sn alloy revealed the Al2p, Si2p, C1s, Sn3d5, O1s, Ni2p3 and Mg1s intensity peaks.",

keywords = "AlNi, Alloy development, Al–AlNi–Sn composite, Morphology",

author = "Z. Gxowa-Penxa and P. Daswa and R. Modiba and Mathabathe, {M. N.} and Bolokang, {A. S.}",

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doi = "10.1016/j.matchemphys.2020.124027",

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T1 - Development and characterization of Al–Al3Ni–Sn metal matrix composite

AU - Gxowa-Penxa, Z.

AU - Daswa, P.

AU - Modiba, R.

AU - Mathabathe, M. N.

AU - Bolokang, A. S.

PY - 2021/2/1

Y1 - 2021/2/1

N2 - The Al–Al3Ni–Sn composite was developed using a powder compassion and sintering metallurgical processing route. Microstructures of the sintered samples revealed the combination of a globular, chain-like and elliptic (raindrop) Al3Ni phases. The differential scanning calorimetry (DSC) analysis confirmed the high temperature stability of the composite. After heat treatment conducted at 500 °C, the Al3Ni chain-like phase in the matrix transformed to raindrop particles. The presence of the Al3Ni intermetallic compound had a positive effect on the hardness since the Al–Al3Ni–Sn composite was harder in comparison to the A356 aluminium alloy. Microstructures were analysed using the LEO 1525 field-emission scanning electron microscope (FE-SEM). The XPS scanned spectra of the A356-Ni-Sn alloy revealed the Al2p, Si2p, C1s, Sn3d5, O1s, Ni2p3 and Mg1s intensity peaks.

AB - The Al–Al3Ni–Sn composite was developed using a powder compassion and sintering metallurgical processing route. Microstructures of the sintered samples revealed the combination of a globular, chain-like and elliptic (raindrop) Al3Ni phases. The differential scanning calorimetry (DSC) analysis confirmed the high temperature stability of the composite. After heat treatment conducted at 500 °C, the Al3Ni chain-like phase in the matrix transformed to raindrop particles. The presence of the Al3Ni intermetallic compound had a positive effect on the hardness since the Al–Al3Ni–Sn composite was harder in comparison to the A356 aluminium alloy. Microstructures were analysed using the LEO 1525 field-emission scanning electron microscope (FE-SEM). The XPS scanned spectra of the A356-Ni-Sn alloy revealed the Al2p, Si2p, C1s, Sn3d5, O1s, Ni2p3 and Mg1s intensity peaks.

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KW - Alloy development

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KW - Morphology

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