Abstract
The friction behavior of a 60-μm-thick anodic aluminum oxide (AAO) film having cylindrical nanopores of 45-nm diameter was investigated as a function of impregnated oil viscosity ranging from 3.4 to 392.6 cSt. Reciprocating ball-on-flat sliding friction tests using a 1-mm-diameter steel ball as the counterpart were carried out with normal load ranging from 0.1 to 1 N in an ambient environment. The friction coefficient significantly decreased with an increase in the oil viscosity. The boundary lubrication film remained effectively under all test conditions when high-viscosity oil was impregnated, whereas it was easily destroyed when low-viscosity oil was impregnated. Thin plastic deformed layer patches were formed on the worn surface with high-viscosity oil without evidence of tribochemical reaction and transfer of counterpart material.
| Original language | English |
|---|---|
| Pages (from-to) | 625-630 |
| Number of pages | 6 |
| Journal | Transactions of the Korean Society of Mechanical Engineers, A |
| Volume | 37 |
| Issue number | 5 |
| DOIs | |
| State | Published - May 2013 |
Keywords
- Anodic Aluminum Oxide Film
- Boundary Lubrication
- Friction and Wear
- Impregnated Oil
- Kinematic Viscosity
- Nanopores