The role of MoDTC tribochemistry in engine tribology performance. A Raman microscopy investigation

Abstract

In order to tackle the new challenges towards the reduction of carbon emissions in transport industry, the present work aims to understand the effect of the friction modifier (FM) molybdenum dithiocarbamate (MoDTC) on the performance of an automobile engine. A petrol engine has undergone motored test trials, measuring the friction torque reduction when the FM additive is blended into a fully formulated SAE 5W30 oil. Moreover, the engine has been dismantled after the test, investigating the tribochemistry of MoDTC at different key engine components undergoing boundary lubrication, using Raman microscopy. This work demonstrates that materials and contact pressure play a crucial role in MoDTC tribochemistry to form a low friction tribofilm, contributing to global engine friction reduction.

Metadata

Authors/Creators:	Espejo, C Wang, C https://orcid.org/0000-0002-4301-3974 Thiébaut, B Charrin, C Neville, A Morina, A https://orcid.org/0000-0001-8868-2664
Copyright, Publisher and Additional Information:	© 2020 Elsevier Ltd. This is an author produced version of a paper published in Tribology International. Uploaded in accordance with the publisher's self-archiving policy.
Dates:	Accepted: 8 April 2020 Published (online): 14 April 2020 Published: October 2020
Institution:	The University of Leeds
Academic Units:	The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Mechanical Engineering (Leeds) > Institute of Functional Surfaces (Leeds)
Depositing User:	Symplectic Publications
Date Deposited:	06 May 2020 15:32
Last Modified:	14 Apr 2021 00:38
Status:	Published
Publisher:	Elsevier
Identification Number:	https://doi.org/10.1016/j.triboint.2020.106366

CORE (COnnecting REpositories)

The role of MoDTC tribochemistry in engine tribology performance. A Raman microscopy investigation

Abstract

Metadata

Download

Accepted Version

Export

Statistics