BOWL RIM AND ROOT PROTECTION FOR ALUMINUM PISTONS

摘要

A piston including a piston crown, the piston crown having a combustion surface that further defines a combustion bowl rim area and a bowl root area. A thermal spray coating is applied to the bowl rim and/or the bowl root area of the piston to increase the resistance of the piston to thermal mechanical fatigue. The thermal spray coating may be metal or alloy based and may be applied using any suitable process.