During this phase of boundary lubrication, metal-to-metal contact can occur between the crankshaft surface and the bearing s sliding surface.
2.
It encompasses the entire gamut of tribological regimes, including elastohydrodynamic lubrication ( EHL ), parched EHL, transient EHL, boundary lubrication, and mixed lubrication.
3.
Although the twist-compression test does not simulate an actual process, it has been demonstrated to correlate well with processes where boundary lubrication predominates and lubricant depletion occurs.
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