Antiwear and extreme pressure properties of hazelnut oil blended with ZDDP
Industrial Lubrication and Tribology
ISSN: 0036-8792
Article publication date: 5 November 2020
Issue publication date: 4 March 2021
Abstract
Purpose
The paper aims to investigate the effect of zinc dialkyldithiophosphate (ZDDP) on wear and extreme pressure (EP) capabilities of hazelnut oil.
Design/methodology/approach
A four-ball tribometer is used to study the effect of ZDDP on the antiwear (AW) and EP performance of hazelnut oil as a lubricant. The AW/EP tests are carried out following ASTM D4172 and ASTM D2783 standards. The wear mechanism of steel balls is studied by scanning electron microscope (SEM). The ZDDP is added in 1Wt.%, 2Wt.% and 3Wt.% concentration, and its presence on surfaces is indicated by Energy Dispersive X-Ray Analysis (EDX).
Findings
The maximum improvement in the wear properties for hazelnut oil is equal to 43.7% and 45.7% at 1Wt.% and 3Wt. % ZDDP, respectively. Also, the load wear index of hazelnut oil increases from 29 to 73.1 at 3Wt.% ZDDP. The improvement in AW and EP properties is attributed to the protective layer formation by ZDDP.
Originality/value
The paper is a novel study investigating the effect of ZDDP additive in hazelnut oil. The results could prove beneficial in making the hazelnut oil a viable replacement of mineral oils.
Peer review
The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-06-2020-0217/
Keywords
Citation
Shafi, W.K. and Charoo, M.S. (2021), "Antiwear and extreme pressure properties of hazelnut oil blended with ZDDP", Industrial Lubrication and Tribology, Vol. 73 No. 2, pp. 297-307. https://doi.org/10.1108/ILT-06-2020-0217
Publisher
:Emerald Publishing Limited
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