Tribological and microstructural investigation of hybrid AA8011/ZrB2-Si3N4 nanomaterials for service life improvement

The effect of ZrB2-Si3N4 particle reinforcement on the tribological behavior and microstructure of AA8011 alloy has been studied. ZrB2-Si3N4 particles were varied from 0 wt% to 20 wt% with an interval of 5 wt%. Dry sliding pin-on-disc tests at a room temperature condition were conducted to investiga...

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Bibliographic Details
Published in:Results in physics 2019-09, Vol.14, p.102469, Article 102469
Main Authors: Fayomi, J., Popoola, A.P.I., Popoola, O.M., Oladijo, O.P., Fayomi, O.S.I.
Format: Article
Language:English
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Summary:The effect of ZrB2-Si3N4 particle reinforcement on the tribological behavior and microstructure of AA8011 alloy has been studied. ZrB2-Si3N4 particles were varied from 0 wt% to 20 wt% with an interval of 5 wt%. Dry sliding pin-on-disc tests at a room temperature condition were conducted to investigate the wear performances of the aluminium alloy/ ZrB2-Si3N4 composites. The tests were conducted at varying loads, from 20 to 40 N. The results depicted that the wear rates of the AA8011 alloy/ZrB2-Si3N4 composites are lower than that of the AA8011 and further decreases with increasing ZrB2-Si3N4 content, Also, the friction coefficient of the matrix alloy is higher than that of the composites and decreases with increasing ZrB2-Si3N4 content. This established the unique efficacy of ZrB2-Si3N4 effect on performance characteristics of aluminium series in application. Keywords: Stir casting, AA8011, Metal matrix composites, Tribological properties
ISSN:2211-3797
2211-3797
DOI:10.1016/j.rinp.2019.102469