Improving Compressive Strength and Oxidation Resistance of AZ31B Magnesium Alloy by Addition of Nano-Al2O3 Particulates and Ca-Reference-Cited by-同舟云学术

Improving Compressive Strength and Oxidation Resistance of AZ31B Magnesium Alloy by Addition of Nano-Al2O3 Particulates and Ca

Published:2009-10-12 Issue:7 Volume:44 Page:883-896
ISSN:0021-9983
Container-title:Journal of Composite Materials
language:en
Short-container-title:Journal of Composite Materials

Author:

Quy Bau Nguyen ¹,Gupta Manoj²

Affiliation:

1. Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576

2. Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576,

Abstract

In the present study, new light weight nanocomposites (AZ311.5Al2 O3-Ca) based on magnesium alloy AZ31B are developed using disintegrated melt deposition technique. Microstructural characterization studies revealed equiaxed grain structure, minimal porosity, and good matrix-reinforcement interfacial integrity. The results also showed that addition of both nano-Al 2O3 and Ca led to a simultaneous improvement in 0.2% yield compressive strength (0.2% YCS), ultimate compressive strength (UCS), and work of fracture (WoF) of the AZ31B magnesium alloy while failure strain was slightly compromised. Moreover, excellent oxidation resistance of this composite was realized when compared to AZ31B up to 500°C. The results suggest that this composite formulation can be used in diverse engineering applications requiring light weight structural materials.

Publisher

SAGE Publications

Subject

Materials Chemistry,Mechanical Engineering,Mechanics of Materials,Ceramics and Composites

Link

http://journals.sagepub.com/doi/pdf/10.1177/0021998309349551

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