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Effect Of Processing Conditions On Transient liquid Phase Sintering Of Premixed Aluminium alloy Powders

N. B. Dhokey, V. A. Athavale, N. Narkhede, M. Kamble

Volume 4, Issue 3, Page 235-240, Year 2013 | DOI: 10.5185/amlett.2012.8402

Keywords: Powder metallurgy; aluminium alloys; mixing time; compacting pressure.

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. Copyright © 2013 VBRI press.

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