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Synthesis and characterisation of hot extruded aluminium-based MMC developed by powder metallurgy route

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Abstract
Background: Improvement of the mechanical and tribological properties due to extrusion can be attributed to the
improved density and excellent bond strength due to high compressive stress.
Methods: To avoid the product defects mathematically contoured cosine profiled die was used for the
thermomechanical treatment. Improvement of mechanical characterization like density, hardness, compression test
and three-point-bend test was inquired. Two body dry sliding wear behaviour of the prepared AMCs before and
after extrusion were investigated by using a pin-on-disc wear testing method by varying the variable parameters
like load (N), track diameter (mm) and RPM of the counter disc.
Results: The effect of hot extrusion on mechanical and tribological characteristics of aluminium matrix composites
(AMCs) developed by powder metallurgy route followed by double axial cold compaction and controlled
atmospheric sintering was studied.
Conclusion: Shearing of the fine distributed graphite particles at the tribosurface acts as a solid lubricant and
decreases wear rate. At higher loading and sliding velocity condition a mixed type of wear mechanism was
observed.

: AMCs, Extrusion, Density, Wear, P/M

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Informasi Detail

Judul Seri

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No. Panggil

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Penerbit

: Springer Singapore., 2017

Deskripsi Fisik

International Journal of Mechanical and Materials Engineering

Bahasa

English

ISBN/ISSN

2198-2791

Klasifikasi

NONE

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

Volume 12, Issue 1, December 2017

Subjek

TEKNIK MESIN

Info Detail Spesifik

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Pernyataan Tanggungjawab

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