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|Title:||Enhancing strength and hardness of AZ31B through simultaneous addition of nickel and nano-Al2O3 particulates||Authors:||Nguyen, Q.B.
|Issue Date:||25-Jan-2011||Citation:||Nguyen, Q.B., Tun, K.S., Chan, J., Kwok, R., Kuma, J.V.M., Gupta, M. (2011-01-25). Enhancing strength and hardness of AZ31B through simultaneous addition of nickel and nano-Al2O3 particulates. Materials Science and Engineering A 528 (3) : 888-894. ScholarBank@NUS Repository. https://doi.org/10.1016/j.msea.2010.10.021||Abstract:||In the present study, AZ31B-Al2O3-Ni composites are developed by the addition of different amounts of Ni particulates into AZ31B-1.5Al2O3 using disintegrated melt deposition technique followed by hot extrusion. The AZ31B-1.5Al2O3 nano-composite is known to exhibit excellent ductility (∼30%) matching with that of pure aluminum but its strength levels are compromised. The composites developed in the current study show a homogeneous microstructure and significant improvement in mechanical characteristics. The results of mechanical properties characterization reveal that addition of Ni led to a simultaneous improvement in 0.2% YS (up to 25%), UTS (up to 13%) and hardness (up to 62%). The ductility, however, stayed almost similar to the ductility of monolithic AZ31B in the case of AZ31B-1.5Al2O3-1.5Ni composite while it was compromised for AZ31B-1.5Al2O3-3.19Ni. The results clearly reveal the superior capability of AZ31B-Al2O3-Ni formulations in terms of overall mechanical response when compared to monolithic AZ31B. © 2010 Elsevier B.V.||Source Title:||Materials Science and Engineering A||URI:||http://scholarbank.nus.edu.sg/handle/10635/84578||ISSN:||09215093||DOI:||10.1016/j.msea.2010.10.021|
|Appears in Collections:||Staff Publications|
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