Behavior of Viscosity Index Improver-Containing Oils in Non-Steady State Contacts
982579
10/19/1998
- Event
- Content
- A study has been made of the lubricant film-forming properties of viscosity index improver-containing oils in non-steady state, high-pressure contacts. Two types of non-steady speed condition have been investigated, sudden halting of motion and cyclically-varying entrainment speed. Film thickness has been measured in a ball on flat contact using ultra-thin film interferometry. It has been shown that viscosity index improver polymers in solution exhibit an enhanced squeeze behavior during halting and a viscoelastic response to acceleration/deceleration.
- Pages
- 44
- Citation
- Gunsel, S., Smeeth, M., and Spikes, H., "Behavior of Viscosity Index Improver-Containing Oils in Non-Steady State Contacts," SAE Technical Paper 982579, 1998, https://doi.org/10.4271/982579.