Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1609997 | Journal of Alloys and Compounds | 2015 | 8 Pages |
Abstract
The present study illustrates the structural and mechanical properties of magnesium composites containing Ni50Ti50 metallic glass reinforcement particles. Novel Mg-composites containing 3, 6 and 10Â vol.%Ni50Ti50 amorphous particulates were synthesized using the microwave assisted rapid sintering technique followed by hot extrusion. The developed Mg-composite materials were investigated for their microstructural and mechanical properties. Microstructural studies revealed the retention of amorphous structure of Ni50Ti50 reinforcement and its fair distribution in developed Mg/Ni50Ti50 composites. Mechanical property evaluation under indentation and compression loads showed significant enhancement in strength properties (microhardness:+78%, 0.2CYS:+79%, UCS:+70%, 0.2TYS:+95%, UTS:+50%) without compromising the compressive ductility. For the first time, tensile properties of such amorphous particles reinforced Mg-composites were studied and the results showed â¼98% increase in 0.2TYS and â¼50% increase in UTS. The tensile ductility was adversely affected. However, the obtained values are comparable to that of conventional Mg-composites. The observed mechanical response discussed in terms of structure-property relationship highlights the efficacy of amorphous Ni50Ti50 reinforcement particles and the energy efficient microwave sintering approach to produce high performance magnesium composites.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
S. Sankaranarayanan, V. Hemanth Shankar, S. Jayalakshmi, Nguyen Quy Bau, Manoj Gupta,