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@article{Ueda:2021:10.1016/j.wear.2021.203869,
author = {Ueda, M and Kadiric, A and Spikes, H},
doi = {10.1016/j.wear.2021.203869},
journal = {Wear},
pages = {1--10},
title = {Wear of hydrogenated DLC in MoDTC-containing oils},
url = {http://dx.doi.org/10.1016/j.wear.2021.203869},
volume = {474-475},
year = {2021}
}
TY - JOUR
AB - This paper describes a study of the effect on MoDTC-promoted a-C:H DLC wear of adding various surface-active additives used in engine lubricants, including ZDDP, an ashless EP additive, Ca detergents, dispersants, an OFM and a PAMA, to an MoDTC solution. Tribofilms formed on wear tracks on steel were analysed using SLIM, TEM, STEM-EDX, Raman spectroscopy and XPS. Relevant mechanisms by which these additives reduce the impact of MoDTC on DLC wear have also been suggested. DLC wear in PAO+Mo can be reduced by the presence of other surface-active additives in three ways. Firstly, asperity contact between DLC and steel can be mitigated by forming thick antiwear tribofilms. Secondly, other additives can increase the ratio of MoS2:MoO3, reducing the amount of wear-enhancing MoO3 in the tribofilm. Thirdly, the amount of MoDTC tribofilm including MoO3 can be reduced by the competitive adsorption of other surface-active additives. This study has practical implications for ways in which DLC surfaces can be protected by lubricant formulation.
AU - Ueda,M
AU - Kadiric,A
AU - Spikes,H
DO - 10.1016/j.wear.2021.203869
EP - 10
PY - 2021///
SN - 0043-1648
SP - 1
TI - Wear of hydrogenated DLC in MoDTC-containing oils
T2 - Wear
UR - http://dx.doi.org/10.1016/j.wear.2021.203869
UR - https://www.sciencedirect.com/science/article/pii/S0043164821002581?via%3Dihub
UR - http://hdl.handle.net/10044/1/87491
VL - 474-475
ER -