This paper is the first international publication on the effect of start-stop transient sliding velocities on the friction and wear behaviour of a light-weight aluminium - silicon hyper-eutectic alloy used as an automotive cylinder liner material. The work has used focused ion beam - secondary ion mass spectrometry to shown how green start-stop technology can reduce the thickness of lubricating surface tribo-layers formed on the surface of aluminium cylinder liner materials due to repeated velocity interruption. This could have implications for the use of these light-weight materials in start-stop engines and is the beginning of a much broader research effort
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