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    Wear-Resistance Assessment for Heavy-Duty Internal Combustion Engine Valvetrain Materials Application

    Published: 2013

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    The effects of pre-oxidation on the wear resistance of valve/valve-seat insert pairs for heavy-duty internal combustion engines were investigated using a reciprocating pin-on-plate testing procedure. This procedure, which is based on ASTM G133 [2010, “Standard Test Method for Linearly Reciprocating Ball-on-Flat Sliding Wear,” Annual Book of ASTM Standards, Vol. 03.02, ASTM International, West Conshohocken, PA], successfully ranked the wear resistance of four valve/valve-seat insert material pairs from 100°C to 550°C in 50°C increments. Wear of the pin and plate varied with temperature, but results suggest that promising improvements can be made in performance when one of the surfaces is pre-oxidized. Further research is needed to fully explore the friction and wear benefits of pre-oxidation treatments on the performance of valve and valve-seat alloys.


    wear resistance, pre-oxidation treatment, tribo-oxidation, valve and valve-seat insert alloys, heavy-duty IC engines, pin-on-plate test

    Author Information:

    Qiao, C. Paul
    Chief Metallurgist, L.E. Jones Company, Menominee, MI

    Committee/Subcommittee: G02.40

    DOI: 10.1520/STP156320120053