STP888

    Effects of Specimen Thickness and Grain Size on the Mechanical Properties of Types 304 and 316 Austenitic Stainless Steel

    Published: Jan 1986


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    Abstract

    The mechanical properties of thin foil specimens of Types 304 and 316 austenitic stainless steels (thickness: 18 to 350 µm) have been investigated at room temperature. The 0.2% proof stress, ultimate tensile strength, work hardening exponent, and total elongation generally decrease with decreasing specimen thickness at a constant grain size. The effect of grain size on the 0.2% proof stress of the 316 stainless steel is smaller than that of the 304 stainless steel. The fracture mode of the specimens is ductile fracture and does not depend on the specimen thickness.

    Keywords:

    Type 304 austenitic stainless steel, Type 316 austenitic stainless steel, thin foil specimen, mechanical properties, 0.2% proof strength, total elongation, work hardening exponent, grain size effect, specimen thickness effect, Hall-Petch relation


    Author Information:

    Igata, N
    University of Tokyo, Tokyo,

    Miyahara, K
    University of Tokyo, Tokyo,

    Uda, T
    University of Tokyo, Tokyo,

    Asada, S
    University of Tokyo, Tokyo,


    Paper ID: STP33000S

    Committee/Subcommittee: E10.02

    DOI: 10.1520/STP33000S


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