Cover Page March-2013-Advanced Materials Letters

Advanced Materials Letters

Volume 4, Issue 3, Pages 235-240, March 2013
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Effect Of Processing Conditions On Transient liquid Phase Sintering Of Premixed Aluminium alloy Powders

N. B. Dhokey1*, V. A. Athavale1, N. Narkhede2, M. Kamble2

1Department of Metallurgical Engineering, Govt. College of Engineering Pune 411005, India

2Aluminium Sintered Products Pvt. Ltd., Chakan, Pune, India

Adv. Mater. Lett., 2013, 4 (3), pp 235-240

DOI: 10.5185/amlett.2012.8402

Publication Date (Web): Jan 21, 2013

E-mail: nbdhokey@yahoo.co.in

Abstract

Aluminium powder metallurgy is attracting attention of many researchers for making near net shape components by replacing conventional process of liquid metallurgy. In the present work, sintering response of a 2xxx series aluminium powder premix, containing 4.5Cu-1Si-0.8Mg (by wt %) blended without any lubricant in a mixer with a ball to powder ratio of 10:1 (by wt) has been studied. The higher mixing time of 6 hours and compacting pressure of 450 MPa gave 90% theoretical sintered density and hardness of 91 HRH with uniform distribution of alloying elements and optimal dimensional growth.

Keywords

Powder metallurgy, aluminium alloys, mixing time, compacting pressure.

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