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Title: Tensile and Compressive Responses of Ceramic and Metallic Nanoparticle Reinforced Mg Composites
Authors: Tun, K.S. 
Wong, W.L.E.
Nguyen, Q.B.
Gupta, M.
Keywords: Mechanical properties
Metal matrix composites
Microwave sintering
Scanning electron microscopy
X-ray diffraction
Issue Date: 2013
Citation: Tun, K.S., Wong, W.L.E., Nguyen, Q.B., Gupta, M. (2013). Tensile and Compressive Responses of Ceramic and Metallic Nanoparticle Reinforced Mg Composites. Materials 6 (5) : 1826-1839. ScholarBank@NUS Repository.
Abstract: In the present study, room temperature mechanical properties of pure magnesium, Mg/ZrO2 and Mg/(ZrO2 + Cu) composites with various compositions are investigated. Results revealed that the use of hybrid (ZrO2 + Cu) reinforcements in Mg led to enhanced mechanical properties when compared to that of single reinforcement (ZrO2). Marginal reduction in mechanical properties of Mg/ZrO2 composites were observed mainly due to clustering of ZrO2 particles in Mg matrix and lack of matrix grain refinement. Addition of hybrid reinforcements led to grain size reduction and uniform distribution of hybrid reinforcements, globally and locally, in the hybrid composites. Macro- and micro- hardness, tensile strengths and compressive strengths were all significantly increased in the hybrid composites. With respect to unreinforced magnesium, failure strain was almost unchanged under tensile loading while it was reduced under compressive loading for both Mg/ZrO2 and Mg/(ZrO2 + Cu) composites. © 2013 by the authors; licensee MDPI, Basel, Switzerland.
Source Title: Materials
ISSN: 19961944
DOI: 10.3390/ma6051826
Appears in Collections:Staff Publications

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