Effect of Nano B4C on the Tribological Behaviour of Magnesium Alloy Prepared Through Powder Metallurgy

Authors

  • Sankar CHINTHAMANI PSN College of Engineering and Technology, Department of Mechanical Engineering, Tirunelveli-627152, Tamilnadu, India.
  • Gangatharan KANNAN PSN College of Engineering and Technology, Department of Mechanical Engineering, Tirunelveli-627152, Tamilnadu, India.
  • Glan Devadhas GEORGE
  • Christopher Ezhil Singh SREEDHARAN Vimal Jyothi engineering college
  • Krishna Sharma RAJAGOPAL

DOI:

https://doi.org/10.5755/j01.ms.26.3.21556

Keywords:

AZ91, B4C, coefficient of friction, sliding wear, hardness

Abstract

In this present study, the particle size of as received magnesium alloy (AZ91) and B4C powders was reduced through high energy ball mills. The combination of AZ91 (both 10 µm and 60 µm) reinforced with nano B4C particles were fabricated by powder metallurgy technique. The incorporation of nano B4C particles to the Mg matrix was done at various weight % such as 5, 10, 15 and 20. The AZ91 composites were fabricated in a suitable die set assembly and the green compacts were sintered in an electric muffle furnace at 500 °C with argon atmosphere for a dwell time of 1 h. The density of the composites was estimated using Archimedes principle. Micro hardness test was carried out for the prepared specimens and dry sliding wear test was conducted by using pin-on-disc apparatus at room temperature with varying loads and sliding velocities by keeping a constant Sliding Distance (SD). Among the various specimens, the composite with 10 µm size attained a higher Vickers hardness value as well as better wear resistant property. Worn surface analysis of the prepared composites was studied using Scanning Electron Microscope (SEM).

Author Biographies

Sankar CHINTHAMANI, PSN College of Engineering and Technology, Department of Mechanical Engineering, Tirunelveli-627152, Tamilnadu, India.

Research Scholar,

Department of Mechanical Engineering,

PSN College of Engineering and Technology,

Tirunelveli-627152, Tamilnadu, India.

Gangatharan KANNAN, PSN College of Engineering and Technology, Department of Mechanical Engineering, Tirunelveli-627152, Tamilnadu, India.

Professor,

Department of Mechanical Engineering,

PSN College of Engineering and Technology,

Tirunelveli-627152, Tamilnadu, India.

Christopher Ezhil Singh SREEDHARAN, Vimal Jyothi engineering college

Professor,

Mechanical Engineering Department,

Vimal Jyothi Engineering College,

Chemperi. Kannur, Kerala,

India

Downloads

Published

2020-09-01

Issue

Section

METALS, ALLOYS, COATINGS