Broad review of “White Etching Crack” failure in wind turbine gearbox bearings: Main factors and experimental investigations

FJ López-Uruñuela, B Fernández-Díaz… - International Journal of …, 2021 - Elsevier
Subsurface crack networks surrounded by microstructural alterations, named as “White
Etching Cracks”(WEC), lead to wind turbine gearbox bearing (WTGB) premature failures …

Synergistic effects between phosphonium-alkylphosphate ionic liquids and zinc dialkyldithiophosphate (ZDDP) as lubricant additives

J Qu, WC Barnhill, H Luo, HM Meyer III, DN Leonard… - Advanced Materials, 2015 - osti.gov
Unique synergistic effects between phosphonium-alkylphosphate ionic liquids and zinc
dialkyldithiophosphate (ZDDP) are discovered when used together as lubricant additives …

Recent advancements in understanding of growth and properties of antiwear tribofilms derived from zinc dialkyl dithiophosphate additives under nanoscale sliding …

J Soni, NN Gosvami - Langmuir, 2024 - ACS Publications
Zinc dialkyl dithiophosphate (ZDDP) is a key antiwear additive in lubricants that forms robust
phosphate glass-based tribofilms to mitigate wear on rubbing surfaces. The quest to unravel …

On the crystallinity and durability of ZDDP tribofilm

M Ueda, A Kadiric, H Spikes - Tribology Letters, 2019 - Springer
The current trend for using lower-viscosity lubricants with the aim of improving fuel economy
of mechanical systems means that machine components are required to operate for longer …

An investigation on the lubrication effectiveness of MoS2 and BN layered materials as oil additives using block-on-ring tests

H Wu, S Yin, Y Du, L Wang, H Wang - Tribology International, 2020 - Elsevier
The commonly accepted interlayer shear mechanism for layered materials as oil additives
remains a challenge with the emergence of two-dimensional materials. In this work, the …

Ultralow boundary lubrication friction by three-way synergistic interactions among ionic liquid, friction modifier, and dispersant

W Li, C Kumara, H Luo, HM Meyer III, X He… - … applied materials & …, 2020 - ACS Publications
Interactions among antiwear additives (AWs), friction modifiers (FMs), and dispersant in a
lubricating oil are critical for tribological performance. This study investigates compatibilities …

Polyether-based block co (ter) polymers as multifunctional lubricant additives

FT Hong, V Ladelta, R Gautam… - ACS Applied Polymer …, 2021 - ACS Publications
A series of polyether-based diblock copolymers were synthesized by sequential
organocatalytic ring-opening polymerization (ROP) of either hexene oxide (HO) or octene …

[HTML][HTML] The effect of over-based calcium sulfonate detergent additives on white etching crack (WEC) formation in rolling contact fatigue tested 100Cr6 steel

AD Richardson, MH Evans, L Wang, M Ingram… - Tribology …, 2019 - Elsevier
Over-based calcium sulfonate (OBCaSul) additives in oils are considered potentially critical
in driving WEC formations, this 'driving'effect being unclear. Rolling contact fatigue testing of …

Molecular simulations of surfactant adsorption on iron oxide from hydrocarbon solvents

PN Acero, S Mohr, M Bernabei, C Fernández… - Langmuir, 2021 - ACS Publications
The performance of organic friction modifiers (OFMs) depends on their ability to adsorb onto
surfaces and form protective monolayers. Understanding the relationship between OFM …

The influence of slide–roll ratio on ZDDP tribofilm formation

Y Shimizu, HA Spikes - Tribology Letters, 2016 - Springer
The anti-wear performance and action mechanisms of zinc dithiophosphate (ZDDP) have
been investigated under various test conditions. The Mini Traction Machine–Space Layer …