Friction stir processing of AZ91 hybrid composites with exfoliated multi-layered graphene: A Taguchi-Grey relational analysis

Marode, R.V. and Awang, M. and Lemma, T.A. and Pedapati, S.R. and Hassan, A. and Janga, V.S.R. and Alam, M.A. and Loyte, A. and Devarajan, Y. (2024) Friction stir processing of AZ91 hybrid composites with exfoliated multi-layered graphene: A Taguchi-Grey relational analysis. Journal of Alloys and Compounds, 972.

Full text not available from this repository.
Official URL:


Friction Stir Processing (FSP) involves the use of Silicon Carbide (SiC) and Graphite (Gr) nanoparticles as reinforcements to enhance the properties of AZ91 Mg alloy composites. The relationship between FSP processing parameters and surface properties of Mg alloy composites with SiC and Gr nanoparticles is poorly understood. The present study addresses this and investigates the impact of SiC and Gr volume percentages (vol), tool traverse speed (TTS), and tool rotational speed (TRS) on the corrosion behavior and microhardness of AZ91 alloy composites. FSP turns graphite into layered graphene, making it more corrosion-resistant and stronger through various strengthening mechanisms. Taguchi optimization yielded optimal settings in runs H7 (1500 rpm-20 mm/min-13 vol) and H8 (1500 rpm-40 mm/min-7 vol) for high microhardness and low corrosion rate. Conversely, runs H1 (500 rpm-20 mm/min-7 vol) and H3 (500 rpm-60 mm/min-13 vol) resulted in reduced microhardness and increased corrosion rate. Integrating Taguchi and Grey Relational Analysis (GRA) optimized the multi-objective enhancement of microhardness and corrosion resistance, achieving 3rd-level values for TRS, TTS, and vol. Notably, the reinforcement percentage, followed by TRS and TTS, simultaneously improved these responses. © 2023 Elsevier B.V.

Item Type: Article
Impact Factor: cited By 0
Uncontrolled Keywords: Corrosion rate; Corrosion resistance; Corrosion resistant alloys; Corrosive effects; Friction; Friction stir welding; Graphene; Graphite; Hybrid composites; Magnesium alloys; Nanoparticles; Reinforcement; Silicon carbide; Taguchi methods; Thermal conductivity, reductions; Alloy composites; Friction stir processing; Hybrid composites; Multi-layered graphene; Rotational speed; Technology; Thermal; Thermal cycle; Traverse speed, Microhardness
Depositing User: Mr Ahmad Suhairi Mohamed Lazim
Date Deposited: 11 Dec 2023 03:17
Last Modified: 11 Dec 2023 03:17

Actions (login required)

View Item
View Item