Wear and seizure of aluminium-silicon-based IC engine component materials

The focus of this paper is on the tribological interaction of aluminum-silicon-based alloys with steel. The study is useful for internal combustion engine materials design and selection. The problem is studied initially in unidirectional sliding under nominally dry conditions and under pressure. Stepwise complexities are introduced into the tests through additions to and heat treatment of the alloys, the introduction of reciprocation to the interaction, and by extending the speed and load ranges to include scuffing and seizure. The classification and mechanism of wear are addressed, as well as the mechanism of seizure. The effect of silicon and alloying elements on wear and seizure are examined as well. (AIAA)