STP1278: Studies on the Characterization and Tribological Behavior of Self-Propagating High-Temperature Synthesis (SHS) Coatings of Chromium Cermet

    Li, L
    Assistant professor and professor, Lanzhou Institute of Chemical Physics, Lanzhou,

    Qunji, X
    Assistant professor and professor, Lanzhou Institute of Chemical Physics, Lanzhou,

    Pages: 14    Published: Jan 1996


    Abstract

    A chromium cermet coating, about 150 μm thick, was formed on carbon steel with the gas transport self-propagating high-temperature synthesis (SHS) coating process. The present paper is concerned with the preparation method, property evaluation, and abrasive wear behavior of the SHS coatings. The experiment reveals that there is excellent adhesion between the coating and the substrate, with less matrix damage and good abrasive wear resistance compared with chemical vapor deposition (CVD)-Cr7C3 coatings. Investigations indicated that an intense metallurgical interaction, gradient composition distribution, and unique forming process are the major reasons for the superior performance of the SHS coatings. It is analytically shown that there is a relationship between the size of the abrasive, the coating thickness, and the abrasive wear resistance.

    Keywords:

    surface coatings, surface treatments, wear testing, combustion synthesis, gas transport, cermet coatings, diffusion, coating bonding, abrasion resistance, abrasion wear


    Paper ID: STP16107S

    Committee/Subcommittee: G02

    DOI: 10.1520/STP16107S


    CrossRef ASTM International is a member of CrossRef.