STP467: Surface Treatments for Fatigue Strengthening

    Benson, DK
    Senior physicist, Midwest Research Institute, Kansas City, Mo.

    Pages: 21    Published: Jan 1970


    Abstract

    Three broad categories of surface treatments are considered: discrete coatings, surface diffusion treatments, and thermomechanical treatments. From the standpoints of reliability and versatility, surface diffusion treatments appear to be best suited for fatigue strengthening. A surface treatment which truly strengthens must not, on the other hand, increase the susceptibility to other forms of damage such as wear, corrosion, and oxidation. It is shown that surface diffusion coatings have the potential capability of providing an increased resistance to all of these forms of damage. Some guidelines are developed for the design of such all-around protective treatments.

    Keywords:

    surface finishing, fatigue (materials), oxidation, corrosion, cracking (fracturing), diffusion coating, wear, evaluation, fatigue crack


    Paper ID: STP26846S

    Committee/Subcommittee: E08.01

    DOI: 10.1520/STP26846S


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