Fabrication and Response of Al₇₀Y₁₆Ni₁₀Co₄ Glass Reinforced Metal Matrix Composites

Abstract

Al₇₀Y₁₆Ni₁₀Co₄ glass was developed through powder metallurgy route. Al-based glass-reinforced metal matrix composites were produced by hot pressing and simultaneous extrusion of these powders.The consolidation parameters were selected from systematic calorimetric studies. The response of these composites is superior mechanical properties, and these properties increases with glassy reinforcement. Remarkable improvement in the wear properties were observed when subjected to abrasion test. The abrasive wear rate has been decreased from 2.46 × 10⁻⁴ m³/m for commercial Al-Mg-Si (6061) extruded alloy to 0.373 × 10⁻⁴ m³/m for 50 vol% glass reinforced 6061 composite. Similar improvements were observed with glass-reinforced aluminum matrix composites. Plowing as well as pullout of particles during abrasion tests corresponds to the wear of these composites.

Keywords:

• Amorphous
• Composites
• Glasses
• Wear

ACKNOWLEDGMENTS

The authors thank B. Bartusch, H. Schulze, H.-J. Klauß, and S. Shanthi for technical assistance, and K. B. Surreddi and M. Sakaliyska for stimulating discussions. K. G. Prashanth is grateful for the financial support provided by the “DAAD–IIT Masters Sandwich Program” for his stay at IFW Dresden. This work was supported by the German Science Foundation under grant Ec 111/16-2.