Systematic Literature Review on AZ91-CNT Magnesium Nanocomposites: Microstructure, Mechanical and Thermal Performance
Husna Mat Salleh, Nur Hidayah Ahmad Zaidi, Nur Maizatulshima Adzali, Siti Hasanah Osman, Sinar Arzuria Adnan, Ahmad Mujahid Ahmad Zaidi
Abstract. This paper reviews recent progress on enhancing AZ91 magnesium alloys through carbon nanotube (CNT) reinforcement to meet industrial demands for lightweight, high-strength materials. Following the PRISMA 2020 guidelines, twenty-three peer-reviewed studies (2010–2025) were analyzed to evaluate fabrication methods, microstructural evolution, and resulting property improvements. Powder metallurgy and spark plasma sintering produced the most significant enhancements, achieving up to 36 % higher tensile strength and 86 % greater elongation. Surface coatings such as Ni, MgO, and Pt improved CNT dispersion and interfacial bonding.. Enhanced thermal conductivity and corrosion resistance further broaden application potential in aerospace and automotive sectors. However, limited standardization, scalability issues, and insufficient long-term data remain major challenges. Future research should focus on optimizing processing parameters, hybrid reinforcements, and cost-effective manufacturing to advance AZ91–CNT composite technology.
Keywords
AZ91 Magnesium Alloy, Carbon Nanotubes (CNTs), Powder Metallurgy, Mechanical Properties, Thermal Conductivity
Published online 1/15/2026, 7 pages
Copyright © 2026 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Husna Mat Salleh, Nur Hidayah Ahmad Zaidi, Nur Maizatulshima Adzali, Siti Hasanah Osman, Sinar Arzuria Adnan, Ahmad Mujahid Ahmad Zaidi, Systematic Literature Review on AZ91-CNT Magnesium Nanocomposites: Microstructure, Mechanical and Thermal Performance, Materials Research Proceedings, Vol. 60, pp 101-107, 2026
DOI: https://doi.org/10.21741/9781644903971-14
The article was published as article 14 of the book Frontiers of Chemical and Materials Engineering
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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