STP700: Evaluation of C* for the Characterization of Creep-Crack-Growth Behavior in 304 Stainless Steel

    Saxena, A
    reader, Banaras Hindu University, Varanasi,

    Pages: 21    Published: Jan 1980


    Abstract

    An experimental program to characterize the creep-crack-growth behavior of 304 stainless steel at several temperatures was conducted. Crack growth rates, da/dt, obtained from center crack tension and compact type specimens were correlated by the energy rate line integral, C*. Experimental data indicate that minor differences in chemistry and microstructure do not significantly influence da/dt versus C* relationship. Also, in the range of 538 to 705°C (1000 to 1300°F), the da/dt versus C* relationship is not significantly affected by temperature. Simple analytical methods of estimating C* are also evaluated.

    Keywords:

    creep, crack, propagation, 304 stainless steel, fracture mechanics, static loading, fractures (materials)


    Paper ID: STP36968S

    Committee/Subcommittee: E08.08

    DOI: 10.1520/STP36968S


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