Development of nano-ZrO2 reinforced magnesium nanocomposites with significantly improved ductility

S. F. Hassan; M. J. Tan; M. Gupta

doi:10.1179/174328407X236913

Development of nano-ZrO₂ reinforced magnesium nanocomposites with significantly improved ductility

S. F. Hassan
, M. J. Tan^*
, M. Gupta

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

Nano-ZrO₂ particulates containing magnesium nanocomposites were synthesised using blend press sinter hot extrusion technique. Microstructural characterisation showed reasonably uniform distribution of reinforcement, significant grain refinement of magnesium matrix, and the presence of minimal porosity. Mechanical testing revealed that the presence of nano-ZrO₂ reinforcement leads to improvement in microhardness and 0-2% yield strength, and significant increase in ductility and work of fracture of magnesium matrix. Fracture surface of Mg matrix exhibited mixed mode (brittle ductile) fracture in the cases of Mg-ZrO₂ nanocomposites.

Original language	English
Pages (from-to)	1309-1312
Number of pages	4
Journal	Materials Science and Technology (United Kingdom)
Volume	23
Issue number	11
DOIs	https://doi.org/10.1179/174328407X236913
State	Published - Nov 2007
Externally published	Yes

Keywords

Ductility
Mg nanocomposites
Nano-ZrO
Work of fracture

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1179/174328407X236913

Cite this

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abstract = "Nano-ZrO2 particulates containing magnesium nanocomposites were synthesised using blend press sinter hot extrusion technique. Microstructural characterisation showed reasonably uniform distribution of reinforcement, significant grain refinement of magnesium matrix, and the presence of minimal porosity. Mechanical testing revealed that the presence of nano-ZrO2 reinforcement leads to improvement in microhardness and 0-2\% yield strength, and significant increase in ductility and work of fracture of magnesium matrix. Fracture surface of Mg matrix exhibited mixed mode (brittle ductile) fracture in the cases of Mg-ZrO2 nanocomposites.",

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AU - Tan, M. J.

AU - Gupta, M.

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N2 - Nano-ZrO2 particulates containing magnesium nanocomposites were synthesised using blend press sinter hot extrusion technique. Microstructural characterisation showed reasonably uniform distribution of reinforcement, significant grain refinement of magnesium matrix, and the presence of minimal porosity. Mechanical testing revealed that the presence of nano-ZrO2 reinforcement leads to improvement in microhardness and 0-2% yield strength, and significant increase in ductility and work of fracture of magnesium matrix. Fracture surface of Mg matrix exhibited mixed mode (brittle ductile) fracture in the cases of Mg-ZrO2 nanocomposites.

AB - Nano-ZrO2 particulates containing magnesium nanocomposites were synthesised using blend press sinter hot extrusion technique. Microstructural characterisation showed reasonably uniform distribution of reinforcement, significant grain refinement of magnesium matrix, and the presence of minimal porosity. Mechanical testing revealed that the presence of nano-ZrO2 reinforcement leads to improvement in microhardness and 0-2% yield strength, and significant increase in ductility and work of fracture of magnesium matrix. Fracture surface of Mg matrix exhibited mixed mode (brittle ductile) fracture in the cases of Mg-ZrO2 nanocomposites.

KW - Ductility

KW - Mg nanocomposites

KW - Nano-ZrO

KW - Work of fracture

UR - https://www.scopus.com/pages/publications/36549081848

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M3 - Article

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JO - Materials Science and Technology (United Kingdom)

JF - Materials Science and Technology (United Kingdom)

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