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Surface integrity of Mg-based nanocomposite produced by Abrasive Water Jet Machining (AWJM)

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Open access
Authors
Mardi, K.
Dixit, A.
Mallick, A.
Pramanik, Alokesh
Ballokova, B.
Hvizdos, P.
Foldyna, J.
Scucka, J.
Hlavacek, P.
Zelenak, M.
Date
2017
Type
Journal Article

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Mardi, K. and Dixit, A. and Mallick, A. and Pramanik, A. and Ballokova, B. and Hvizdos, P. and Foldyna, J. et al. 2017. Surface integrity of Mg-based nanocomposite produced by Abrasive Water Jet Machining (AWJM). Materials and Manufacturing Processes. 32 (15): pp. 1707-1714.
Source Title
Materials and Manufacturing Processes
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Department of Mechanical Engineering
Remarks

This is an Author's Original Manuscript of an article published by Taylor & Francis in Journal of Materials and Manufacturing Processes on 8/02/2017 available online at http://www.tandfonline.com/ 10.1080/10426914.2017.1279306

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Abstract

This paper investigates the influence of jet traverse speed on the surface integrity of 0.66 wt% Al2O3 nanoparticle reinforced metal matrix composite (MMC) generated by Abrasive Water Jet Machining (AWJM). Surface morphology, surface topography, and surface roughness (SR) of the AWJ surface were analyzed. The machined surfaces of the nanocomposites were examined by laser confocal microscope and field emission scanning electron microscope (FESEM). Microhardness and elasticity modulus measurement by nanoindentation testing were also performed across thickness of the samples to see depth of the zone, affected by AWJ cutting. The result reveals that extent of grooving by abrasive particle and irregularity in AWJ machined surface increases as the traverse speed increased. Similarly, the rise in value of surface roughness parameters with traverse speed was also seen. In addition, nanoindentation testing represents the lower hardness and elastic modulus due to softening occurs in AWJ surface.