Metal Matrix Composites (MMCs) have been widely investigated
and used in automobile and aerospace industries due to their advantages of
improved strength, stiffness and increased wear resistance over monolithic
alloys. Also considering limited reports on the study of weight % influence on
wear characteristics of Al-6061-Boron Carbide (B4Cp) composites. This study
presents the effect of weight % of B4Cp in Al-6061 alloy matrix on wear loss
during dry sliding wear in pin-on-disc tribometer at different wear parameters
against oil-hardened non-shrinking (OHNS) steel disk at room temperature. The
composites are prepared by the stir casting technique. Taguchi is a statistical
tool for acquiring data in a controlled way and is used to analyze the
influence of process variables through the design of experimentation.
Tribological investigations were examined according to the L9 orthogonal array
of Taguchi. The influence of % of reinforcement along with load, speed and
distance were examined for the wear loss of composites. The results, analysed
using Taguchi and Response Surface Method to understand the significance of
considered parameters (percentage of reinforcement, speed, time and load) on
wear loss, revealed increased wear resistance of composite with increasing B4C
particles. The observed results have been explained based on the
microstructural behaviour and response surface of wear-tested composites. The
study concludes that it is possible to prepare Al 6061-B4C composites using the
stir casting technique, which exhibits improved hardness, wear resistance, and
tensile strength with increasing reinforcement content.
Author(s) Details:
Dr. B. Manjunatha,
Department of Mechanical Engineering, Acharya Institute of
Technology, Soldevanahalli, Hesaraghatta Main Road, Bangalore-560090, India.
Dr. H. B. Niranjan
Department of Mechanical Engineering, Sambhram Institute of Technology,
Lakshmipura Cross, MS Palya, Jalahalli East, Bangalore-560097, India.
Dr. S. Raghavendra
Department of Mechanical Engineering, Sai Vidya Institute of Technology,
Bangalore-560 064, India.
Please see the link here: https://stm.bookpi.org/CICMS-V9/article/view/14333
No comments:
Post a Comment