STUDY ON MECHANICAL PROPERTIES OF HOT EXTRUDED AZ91-MWCNT COMPOSITES FABRICATED BY STIR CASTING

Authors

  • Suhas B. Savant PG Student,Department Of Mechanical Engineering,University of Pune, Pune, Maharashtra-413801,India.
  • Jayaraman Jayakumar Associate Professor, Dept. of Mechanical Engineering, PDVVP College of Engg., Ahmednagar, Maharashtra, India.

Keywords:

THE PROCESSING OF MAGNESIUM MATRIX COMPOSITES

Abstract

Magnesium alloys have been increasingly used in the automotive industry in recent years due to their lightweight. The density of magnesium is approximately two third of that of aluminium, one quarter of zinc, and one fifth of steel.Carbon nanotubes (CNTs) are promising reinforcements for light weight and high strength composites due to their exceptional properties. Experimental results have indicated their extraordinary strength up to 150 GPa and Young’s modulus up to 1 TPa. The main problem for Mg-CNT composites is to obtain homogenous dispersion in the matrix material. However the problem of homogeneous dispersion has been overcome through ball milling process by milling the CNTs with Mg-metal and alloy materials in powder form. Hot extrusion almost eliminated this particle aggregation and improved the particle distribution of the composites. The results show that hot extrusion significantly improves the mechanical properties of the composites. In the as-extruded composite, with the increase of MWCNT contents, the strength and elastic modulus increase. In this study we have used low cost stir casting processing technique for synthesis of the composites with an objective to achieve homogeneous distribution and alignment of carbon nanotubes in the Mg matrix using hot extrusion.

Downloads

Published

2021-03-27

Issue

2015: ICITDCEME

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0 DEED).

You are free to:

  1. Share — copy and redistribute the material in any medium or format
  2. The licensor cannot revoke these freedoms as long as you follow the license terms.

Under the following terms:

  1. Attribution — You must give appropriate credit , provide a link to the license, and indicate if changes were made . You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  2. NonCommercial — You may not use the material for commercial purposes .
  3. NoDerivatives — If you remix, transform, or build upon the material, you may not distribute the modified material.
  4. No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.

Notices:

You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation .

No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.

 

Rights of Authors

Authors retain the following rights:
1. Copyright and other proprietary rights relating to the article, such as patent rights,
2. the right to use the substance of the article in future works, including lectures and books,
3. the right to reproduce the article for own purposes, provided the copies are not offered for sale,
4. the right to self-archive the article.