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Title: Development of ultrafine grain aluminium-graphite metal matrix composite by equal channel angular pressing
Authors: Saravanan, M
Pillai, R M
Ravi, K R
Pai, B C
Brahmakumar, M
Keywords: Metal–matrix composites
Issue Date: 2007
Publisher: Elsevier
Citation: Composites Science and Technology 67(6):1275-1279;May 2007
Abstract: A1-5 vol% graphite particulate composite was subjected to equal channel angular pressing (ECAP) at room temperature up to four passes. A significant grain refinement, down to the submicron level of similar to 300 nm was achieved. Hardness enhancement of more than two fold was observed with only a marginal difference along the perpendicular and parallel directions of pressing. Further, the strength of the composites was increased by more than two folds. ECAP at room temperature has resulted in a more rapid and significant grain refinement and strengthening in A1-graphite composite.
ISSN: 0266-3538
Appears in Collections:2007

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