Abstract

Metal matrix nanocomposites (MMnCs) comprise a metal matrix filled with nanosized reinforcements with physical and mechanical properties that are very different from those of the matrix. In ZA-27 alloy-based nanocomposites, the metal matrix provides ductility and toughness, while usually used ceramic reinforcements give high strength and hardness. Tested ZA-27 alloy-based nanocomposites, reinforced with different types (SiC and Al2O3), amounts (0.2 wt.%, 0.3 wt.%, and 0.5 wt.%) and sizes (25 nm, 50 nm, and 100 nm) of nanoparticles were produced through the compocasting process with mechanical alloying pre-processing (ball milling). It was previously shown that the presence of nanoparticles in ZA-27 alloy-based nanocomposites led to the formation of a finer structure in the nanocomposites matrix and an improvement in the basic mechanical properties (hardness and compressive yield strength) through the enhanced dislocation density strengthening mechanism. Solid particle erosive wear testing demonstrated that these improvements were followed with an increase in the erosive wear resistance of tested nanocomposites, as well. Additionally, by analyzing the influences of type, amount, and size of nanoparticles on the erosive wear resistance of nanocomposites, it was demonstrated that there is an optimal amount of nanoparticles, which in our case is 0.3 wt.%, and that the presence of SiC nanoparticles and smaller nanoparticles in nanocomposites had more beneficial influence on erosive wear resistance.

Details

Title
Erosive wear properties of ZA-27 alloy-based nanocomposites: Influence of type, amount, and size of nanoparticle reinforcements
Author
Vencl, Aleksandar 1 ; Bobić, Ilija 2 ; Bobić, Biljana 3 ; Jakimovska, Kristina 4 ; Svoboda, Petr 5 ; Kandeva, Mara 6 

 Faculty of Mechanical Engineering, University of Belgrade, Belgrade, Serbia 
 Institute of Nuclear Sciences “Vinca”, University of Belgrade, Belgrade, Serbia 
 Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Belgrade, Serbia 
 Faculty of Mechanical Engineering in Skopje, Ss. Cyril and Methodius University, Skopje, Macedonia 
 Faculty of Mechanical Engineering, Brno University of Technology, Brno, Czech Republic 
 Faculty of Industrial Technology, Technical University of Sofia, Sofia, Bulgaria 
Pages
340-350
Publication year
2019
Publication date
Aug 2019
Publisher
Springer Nature B.V.
ISSN
22237690
e-ISSN
22237704
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2112947797
Copyright
Friction is a copyright of Springer, (2018). All Rights Reserved., © 2018. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.