Microstructure, Mechanical Characteristics, Wear Behaviour, and Machine Operation of AZ91D-B4C-ZrO₂ Blended Composites

DOI

10.2991/978-94-6463-662-8_41How to use a DOI?

Keywords

Stir Casting; Tensile; Wear; Impact; MRR; Surface Roughness

Abstract

Hybrid composites of AZ91D magnesium alloy with boron carbide (B4C) and zirconia (ZrO2) were created using the stir casting technique. The microstructure of the composites showed that the distribution of reinforcing phases was heterogeneous. To study the tribological properties of the manufactured composites, including wear and friction coefficient in dry sliding situations, a pin-on-disc test was performed. The dispersion of the reinforcement caused the composites to exhibit increased hardness. When compared to the other specimens, the composite containing 2 wt.% ZrO2 + 3 wt.% B4C showed much improved yield and tensile strengths. The AZ91D alloy’s wear resistance was enhanced by the addition of B4C and ZrO2, as seen by the reduced wear rate. The specimen with the best wear resistance was the composite reinforced with 2 weight percent ZrO2 and 3 weight percent B4C. Combining Multiple Design-of-Experiment Methods with the L9 Array. Several WEDM process parameters for AZ91D, B4C, and ZrO2 optimisation with respect to minimum surface roughness and material removal rate (MRR) have been identified in this study. Surface roughness increases, B4C proportions, and ZrO2 proportions must have contributed independently to the material removal rate (MRR) decrease. In order to produce HMMC of AZ91D, B4C, and ZrO2 at different weight percentages, the study’s results are utilised to establish the most efficient and accurate WEDM process parameters. This study concludes that improving the mechanical characteristics, MRR, surface roughness, and wear parameters of AZ91 composites by adding B4C and ZrO2 is a viable option.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Chilakamarri L. Aslesha
AU  - A. Seshappa
AU  - P. Prasanna
AU  - K. Anil
AU  - K. Deepak
AU  - K. Prudhvi Raj
PY  - 2025
DA  - 2025/03/17
TI  - Microstructure, Mechanical Characteristics, Wear Behaviour, and Machine Operation of AZ91D-B4C-ZrO₂ Blended Composites
BT  - Proceedings of the International Conference on Advanced Materials, Manufacturing and Sustainable Development (ICAMMSD 2024)
PB  - Atlantis Press
SP  - 508
EP  - 524
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-662-8_41
DO  - 10.2991/978-94-6463-662-8_41
ID  - Aslesha2025
ER  -