Performance Assessment of Vegetable Oil and mineral oil blends during heat treatment of Medium Carbon Steel
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Date
2016
Authors
Agboola, J.B.
Abubakre, O.K.
Edeki, M.
Adeyemi, M.B
Journal Title
Journal ISSN
Volume Title
Publisher
International Journal of Microstructure and Materials Properties
Abstract
A comparative study was carried out to investigate the suitability of some selected Nigerian vegetable oils as alternative quenchant to SAE40 engine oil for industrial heat treatment of Medium Carbon steels. The study involved the characterization of physicochemical properties and fatty acid profile of cottonseed oil, palm kernel oil, neem seed oil and palm oil. The quenching performance of these vegetable oils was conducted at quenchant bath temperatures of 34˚C, 50˚C, 70˚C, and 100˚C. SAE40 engine oil (Standard quenchant) and tap water served as control. The effect of cooling rates of the quenching media on mechanical properties and microstructure of the quenched
steel samples were investigated. The results obtained show that the different vegetable oils have
different viscosity and viscosity-temperature behaviour just as their molecular structures were
different. The mechanical properties of the as-quenched specimens in these oils show that the
hardness of steel quenched in palm kernel oil was highest at 40.85HRC. As received sample absorbed
the highest amount of energy (183 J) before fracture while the sample quenched in water absorbs
the least energy (28 J). Hence vegetable oil is suitable as an alternative quenchant to petroleum-based
SAE40 engine oil for quenching medium carbon steels, without cracking or distortion, the most
suitable among them being palm kernel oil.
Description
Scholarly articles
Keywords
Research Subject Categories::TECHNOLOGY , Quenching , Vegetable Oil , Fatty Acid , Mechanical Properties , Microstructure
Citation
Agboola, J.B., Abubakre, O.K., Mudiare, E. and Adeyemi, M.B. (2016) ‘Performance assessment of vegetable oil and mineral oil blends during heat treatment of medium carbon steel’, Int. J. Microstructure and Materials Properties, Vol. 11, Nos. 3/4, pp.203–213.