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Microstructure and mechanical properties of nanocrystalline high strength Al-Mg-Si (AA6061) alloy by high energy ball milling and spark plasma sintering

Version 2 2024-06-04, 03:53
Version 1 2016-10-13, 14:43
journal contribution
posted on 2024-06-04, 03:53 authored by JK Rana, D Sivaprahasam, K Seetharama Raju, V Subramanya Sarma
In the present paper, the microstructure and mechanical properties of nanostructured Al-Mg-Si based AA6061 alloy obtained by high energy ball milling and spark plasma sintering were reported. Gas atomized microcrystalline powder of AA6061 alloy was ball milled under wet condition at room temperature to obtain nanocrystalline powder with grain size of ∼30 nm. The nanocrystalline powder was consolidated to fully dense compacts by spark plasma sintering (SPS) at 500 °C. The grain size after SPS consolidation was found to be ∼85 nm. The resultant SPS compacts exhibited microhardness of 190-200 HV 100 g , compressive strength of ∼800 MPa and strain to fracture of ∼15%. © 2009 Elsevier B.V. All rights reserved.

History

Journal

Materials Science and Engineering: A

Volume

527

Pagination

292-296

ISSN

0921-5093

Publication classification

CN.1 Other journal article

Copyright notice

2009, Elsevier

Issue

1-2

Publisher

Elsevier

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