Surface Design and the Seizure Resistance Evaluation of Al Alloy for Automotive Piston

Abstract

Seizure resistance of these surface modification methods for the engine sliding parts have not been not sufficiently evaluated. In this study, the specimens with a new surface modification methods were investigated to evaluate the friction properties, running-in and seizure behaviour. As a result, an aluminum alloy with a new surface modification shows low friction properties and good running-in behaviour, seizure resistance was also improved. It was found that the bonding strength of MoS₂ to the Al alloy matrix was improved when shot peening with a tin ball was treated to the matrix.