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Processing Routes, Mechanical, and Tribological Properties of Light Metal Matrix Nanocomposites

Processing Routes, Mechanical, and Tribological Properties of Light Metal Matrix Nanocomposites
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Author(s): S. Jayalakshmi (Bannari Amman Institute of Technology, India) and R. Arvind Singh (Bannari Amman Institute of Technology, India)
Copyright: 2017
Pages: 47
Source title: Materials Science and Engineering: Concepts, Methodologies, Tools, and Applications
Source Author(s)/Editor(s): Information Resources Management Association (USA)
DOI: 10.4018/978-1-5225-1798-6.ch040

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Abstract

The chapter highlights the various processing/synthesizing routes of Light Metal Matrix Nanocomposites (LMMNCs), their microstructural characteristics, mechanical behaviour, and tribological properties. LMMNCs are advanced materials, in which nano-sized ceramic particles are reinforced into Al/Mg matrices. In conventional Metal Matrix Composites (MMCs), the incorporation of micron sized reinforcements in the matrix usually results in a considerable improvement in hardness and ultimate strength when compared to the unreinforced base material. However, most of these composites do not show plastic deformation (little or no yield) and exhibit drastic reduction in ductility. This poses a major limitation for MMCs to be used in real-time applications. In order to overcome this drawback, Al/Mg composites with nano-scale reinforcements have been developed. Based on numerous research works, it has been established that LMMNCs are better materials that possess superior properties, wherein both strength and ductility improvements along with excellent wear resistance can be achieved.

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