Multicyclic fatigue of stainless steel treated by a high-intensity electron beam: surface layer structure |
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| Authors: | Yu F Ivanov N N Koval S V Gorbunov S V Vorobyov S V Konovalov V E Gromov |
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| Institution: | 1.Institute of High Current Electronics of the Siberian Branch of the Russian Academy of Sciences,Tomsk,Russia;2.Siberian State Industrial University,Novokuznetsk,Russia |
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| Abstract: | It is shown that an electron-beam treatment of the 08X18H10T steel specimens under the condition of melting of the ~5 μm surface
layer (electron beam energy density 25 J/cm2) increases their fatigue life by a factor of 3.5. The structural-phase states and defect substructure of this steel are studied
by the methods of optical, scanning and transmission electron microscopy, and the factors responsible for its increased fatigue
life are revealed. |
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