On the Influence of Carbon Nanotubes and Processing on Tensile Response and Fracture Behavior of a Magnesium Alloy

Abstract:

Carbon nanotube (CNT) reinforced magnesium alloy (AZ31)-based composite was fabricated using the technique of solidification processing followed by hot extrusion. In this paper is presented and briefly discussed the conjoint influence of reinforcement and processing on microstructural development, microhardness, tensile deformation and final fracture behavior of the magnesium alloy composite and comparisons made with the unreinforced alloy (AZ31). The interactive influences of the CNT reinforcement and processing in governing engineering stress versus engineering strain response and tensile properties is neatly presented and discussed. The macroscopic fracture mode and intrinsic microscopic mechanisms governing quasi-static deformation and fracture behavior of both the CNT reinforced and unreinforced magnesium alloy is both elaborated and rationalized in light of the specific role played by presence of reinforcing phase in the magnesium alloy metal matrix, intrinsic microstructural effects and nature of loading.

• Periodical: Advanced Materials Research (Volume 410)
• Pages: 133-141
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.410.133
• Online since: November 2011
• Authors: Tirumalai S. Srivatsan, C. Godbole, Muralidharan Paramsothy, Manoj Gupta
• Keywords: Carbon Nanotube (CN), Composite Material, Fracture, Magesium Alloy, Tensile Response

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