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Synthesis, characterization and mechanical properties of nano alumina particulate reinforced magnesium based bulk metallic glass composites
Sch. of Mech. & Aerospace Eng., Nanyang Technological University, Singapore.
Department of Mechanical Engineering, National University of Singapore.
Sch. of Mech. & Aerospace Eng., Nanyang Technological University, Singapore.ORCID iD: 0000-0002-0101-0062
Sch. of Mech. & Aerospace Eng., Nanyang Technological University, Singapore.
2011 (English)In: Materials Science & Engineering: A, ISSN 0921-5093, Vol. 528, no 18, 6045-6050 p.Article in journal (Refereed) Published
Abstract [en]

Mg67Zn28Ca5 bulk metallic glass reinforced with 0.66-1.5vol% of nano alumina particulates were successfully synthesized using disintegrated melt deposition technique. Microstructural characterization revealed reasonably uniform distribution of alumina particulates in a metallic glass matrix. The reinforced particles have no significant effect on the glass forming ability of the monolithic glass matrix. Mechanical characterization under compressive loading showed improved micro hardness, fracture strength and failure strain with increase in nano alumina particulate reinforcement. The best combination of strength, hardness and ductility was observed in Mg/1.5vol% alumina composite with fracture strength of 780MPa and 2.6% failure strain.

Place, publisher, year, edition, pages
2011. Vol. 528, no 18, 6045-6050 p.
Keyword [en]
Bulk amorphous alloys, Failure, Fracture, Magnesium alloys, Shear bands, X-ray diffraction, Alumina composites, Alumina particulates, Bulk metallic glass, Bulk metallic glass composites, Compressive loading, Disintegrated melt deposition technique, Failure strain, Fracture strengths, Glass forming ability, Mechanical characterizations, Metallic glass matrix, Micro-structural characterization, Monolithic glass, Nano-alumina particulates, Reinforced particles, Uniform distribution, Amorphous alloys, Characterization, Glass, Hardness, Magnesium, Metallic glass, Particle reinforced composites, X ray diffraction
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:hj:diva-16626DOI: 10.1016/j.msea.2011.03.103OAI: oai:DiVA.org:hj-16626DiVA: diva2:454335
Available from: 2011-11-07 Created: 2011-11-07 Last updated: 2015-06-01Bibliographically approved

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CiteExportLink to record
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