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Effect of ECAP and extrusion on particle distribution in Al-nano–Al2O3 composite

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Abstract

In this study equal channel angular pressing (ECAP) and conventional extrusion were used as two different techniques for consolidation of attritioned aluminium powder (45 μm) with varying concentrations of nanoalumina powders (35 nm). The evolution of the homogeneity of the particle distribution in the material during ECAP and conventional extrusion was investigated by the quadrat method with image analysis software. The frequency histograms of the number of alumina particles per quadrat, N q, for each investigated condition were plotted and the effect of particle distribution on fracture surface and wear resistance of the composite was investigated.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, Shiraz Branch, Islamic Azad University, Shiraz, Iran

    R DERAKHSHANDEH HAGHIGHI

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  1. R DERAKHSHANDEH HAGHIGHI
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Correspondence to R DERAKHSHANDEH HAGHIGHI.

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HAGHIGHI, R.D. Effect of ECAP and extrusion on particle distribution in Al-nano–Al2O3 composite. Bull Mater Sci 38, 1205–1212 (2015). https://doi.org/10.1007/s12034-015-1001-1

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  • DOI: https://doi.org/10.1007/s12034-015-1001-1

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