Tensile and wear properties of aluminum composites

Beryl/Al–Si–Mg composites containing 2.0–10.0% of beryl particles have been fabricated by squeeze casting. Pressure of 80 MPa was maintained during solidification in a specially designed die and punch maintained at 400 °C. The tensile and wear properties have been evaluated and compared with gravity...

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Bibliographic Details
Published in:Wear 2003-08, Vol.255 (1), p.638-642
Main Authors: Suresh, K.R., Niranjan, H.B., Jebaraj, P.Martin, Chowdiah, M.P.
Format: Article
Language:English
Subjects:
Applied sciences
Beryl
Contact of materials. Friction. Wear
Exact sciences and technology
Friction, wear, lubrication
Machine components
Mechanical engineering. Machine design
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
Particle composites
Squeeze casting
Wear
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Summary:Beryl/Al–Si–Mg composites containing 2.0–10.0% of beryl particles have been fabricated by squeeze casting. Pressure of 80 MPa was maintained during solidification in a specially designed die and punch maintained at 400 °C. The tensile and wear properties have been evaluated and compared with gravity cast beryl–aluminum composites. The squeeze cast composites show a peak strength of 216 MPa showing an increase of 11.6% in tensile strength. The new composites also have improved wear resistance when compared to gravity cast composites. Squeeze cast composites with 6 wt.% of beryl particles showed almost 1.2 times reduced adhesive wear rate at 2400 m sliding distance when compared to that at 600 m.
ISSN:0043-1648
1873-2577
DOI:10.1016/S0043-1648(03)00292-8