Структура, механические свойства и усталостная долговечность стали 30ХГСН2А подвергнутая ионно-лучевой обработке ионами Zr{+}

Abstract

The structure of modified surface layer of the high-strength 30CrMnSiNi2 steel was investigated by optical, scanning electron and transmission electron microscopy as well as X-ray diffraction methods. The tests on static and cyclic tension were performed for 30CrMnSiNi2 steel specimens in as supplied state and after subsurface layer modification by Zr{+} ion beam treatment. Differences of the specimen deformation behavior and changes of their mechanical properties are analyzed. The reason for fatigue life increase of the samples after the treatment is discussed.