Tailoring the tensile/compressive response of magnesium alloy ZK60A using [Al.sub.2][O.sub.3] nanoparticles

ZK60A nanocomposites containing [Al.sub.2][O.sub.3] nanoparticle reinforcement were fabricated using solidification processing followed by hot extrusion and T5 heat treatment. Agglomeration of [Al.sub.2][O.sub.3] nanoparticles was observed in the nanocomposites. However, in the case of ZK60A/1.0 vol...

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Bibliographic Details
Published in:Journal of materials science 2010-03, Vol.45 (5), p.1170
Main Authors: Jayaramanavar, P, Paramsothy, M, Balaji, A, Gupta, M
Format: Article
Language:English
Subjects:
Comparative analysis
Magnesium alloys
Mechanical properties
Nanoparticles
Online Access:Get full text
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Summary:ZK60A nanocomposites containing [Al.sub.2][O.sub.3] nanoparticle reinforcement were fabricated using solidification processing followed by hot extrusion and T5 heat treatment. Agglomeration of [Al.sub.2][O.sub.3] nanoparticles was observed in the nanocomposites. However, in the case of ZK60A/1.0 vol%[Al.sub.2][O.sub.3] nanocomposite (compared to monolithic ZK60A), increase in tensile strength (up to 14%) without significant decrease in ductility and simultaneous increase in compressive strength (up to 12%) and ductility (+23%) were observed. Here, the strength of ZK60A was increased without significant decrease in ductility. On the other hand, in the case of ZK60A/1.5 vol%[Al.sub.2][O.sub.3] nanocomposite (compared to monolithic ZK60A), simultaneous increase in tensile strength (up to 6%) and ductility (+26%), but decrease in compressive strength (up to 40%) with increase in ductility (+43%) were observed. Here, the ductility of ZK60A was significantly increased without significant increase in strength. This tailoring of tensile and compressive properties of ZK60A via integration with [Al.sub.2][O.sub.3] nanoparticles are investigated in this article.
ISSN:0022-2461
DOI:10.1007/s10853-009-4059-6