Abstract
We present some findings of the analysis of experimental data on the influence of the type of stress state on radiation swelling in austenitic steels. A constitutive equation has been derived which provides a description of the effect of triaxial stress state on swelling in austenitic steels allowing for the contributions of spherical and deviatoric stress components. The authors put forward a physical interpretation of the derived relationship between radiation swelling and stress state. The dependence of radiation creep on swelling has been defined more accurately taking into account the stress state. The values of the coefficients involved in the constitutive equation and radiation creep dependence have been determined.
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