Effect of metallic reinforcement and mechanically mixed layer on the tribological characteristics of Al-Zn-Mg alloy matrix composites under T6 treatment

Shetty, Raviraj J; Hindi, Jamaluddin; Gurumurthy, B M; Hegde, Ananda; Shivaprakash, Y M; Sharma, Sathyashankara; A, Amar Murthy; Muralishwara, K

doi:10.1080/23311916.2023.2200900

Cited by 4 publications

(1 citation statement)

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“…The wear of the steel disc is mainly caused by the presence of the protruded SiC hard particles (Spectrum 3). The oxidized worn iron particles and matrix material formed a mechanically mixed layer (MML) [23][24], which was confirmed by the EDS analysis (Spectrum 1). in the composite with 3 wt.% Gr, where the coefficient of friction has the highest values.…”

Section: Discussionmentioning

confidence: 66%

Comparative Analysis of Hybrid Composites Based on A356 and ZA-27 Alloys regarding Their Tribological Behaviour

Stojаnović¹,

Gajević²,

Miloradović³

et al. 2023

Komunikácie

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The comparative analysis of the two hybrid composites, obtained by the compocasting process, based on A356 and ZA-27 alloys and reinforced with 10 wt. % SiC and 0, 1 and 3 wt. % graphite (Gr) is presented. Optimisation of their tribological behaviour was performed by the Taguchi method and the artificial neural network (ANN). Tribological tests were performed on a block-on-disk tribometer, at three sliding speeds, three normal loads and a sliding distance of 600 m, without lubrication. Results obtained by the ANOVA showed that the hybrid composites based on A356 alloy have the better wear resistance and that the composite reinforced with 10 wt. % SiC and 1 wt. % Gr has the lowest wear rate. The lowest coefficient of friction was obtained for a composite based on ZA-27 alloy reinforced with 10 wt. % SiC, at a normal load of 10 N and sliding speed of 1 m/s.

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Section: Discussionmentioning

confidence: 66%