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Title: Enhancing properties of aerospace alloy Elektron 21 using boron carbide nanoparticles as reinforcement
Authors: Tekumalla, S. 
Yuan, N.J.
Haghshenas, M.
Gupta, M. 
Keywords: Boron carbide nanoparticles
Elektron 21
Issue Date: 2019
Publisher: MDPI AG
Citation: Tekumalla, S., Yuan, N.J., Haghshenas, M., Gupta, M. (2019). Enhancing properties of aerospace alloy Elektron 21 using boron carbide nanoparticles as reinforcement. Applied Sciences (Switzerland) 9 (24) : 5470. ScholarBank@NUS Repository.
Rights: Attribution 4.0 International
Abstract: In this study, the effect of nano-B4C addition on the property profile of Elektron 21 (E21) alloys is investigated. E21 reinforced with different amounts of nano-size B4C particulates was synthesized using the disintegrated melt deposition technique followed by hot extrusion. Microstructural characterization of the developed E21-B4C composites revealed refined grains with the progressive addition of boron carbide nanoparticles. The evaluation of mechanical properties indicated a significant improvement in the yield strength of the nanocomposites under compressive loading. Further, the E21-2.5B4C nanocomposites exhibited the best damping characteristics, highest young's modulus, and highest resistance to ignition, thus featuring all the characteristics of a material suitable for several aircraft applications besides the currently allowed seat frames. The superior mechanical properties of the E21-B4C nanocomposites are attributed to the refined grain sizes, uniform distribution of the nanoparticles, and the thermal insulating effects of nano-B4C particles. © 2019 by the authors.
Source Title: Applied Sciences (Switzerland)
ISSN: 20763417
DOI: 10.3390/app9245470
Rights: Attribution 4.0 International
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