Please use this identifier to cite or link to this item: https://scidar.kg.ac.rs/handle/123456789/15345
Title: Enhancing of ZA-27 alloy wear characteristics by addition of small amount of SiC nanoparticles and its optimisation applying Taguchi method
Authors: Vencl, Aleksandar
Stojanovic, Blaza
Gojković, Ranka
Klančnik, Simon
Czifra, Árpád
Jakimovska, Kristina
Harničárová, Marta
Issue Date: 2022
Abstract: The objective of this work was to investigate the influence of the addition of a small amount of SiC nanoparticles on the mechanical characteristics and wear resistance of ZA-27 alloy. The ZA-27 alloy-based nanocomposites were produced by a relatively cheap compocasting process preceded by mechanical alloying. Reinforcing elements were the silicon carbide (SiC) nanoparticles with an average size lower than 50 nm and in very small amounts of 0.2, 0.3 and 0.5 wt. %. Wear tests were realized on a block-on-disc tribometer under lubricated sliding conditions, at two sliding speeds (0.25 and 1 m/s), two normal loads (40 and 100 N) and a sliding distance of 1000 m. Optimisation of the SiC amount was performed by applying the Taguchi method, showing that the SiC amount of 0.5 wt. % is optimal for the given testing conditions. Prediction of the results and wear maps were also conducted. The analysis of variance showed that the SiC amount has the greatest influence on wear rate (70.8 %), followed by the normal load (19.8 %), and the sliding speed (3.9 %), while the influences of all interactions between these factors did not have any significant influence.
URI: https://scidar.kg.ac.rs/handle/123456789/15345
Type: article
DOI: 10.46793/tribomat.2022.014
ISSN: 2812-9717
Appears in Collections:Faculty of Engineering, Kragujevac

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