THE INFLUENCE OF Zr+ ION-BEAM PROCESSING ON STRUCTURE AND FATIGUE DURABILITY OF 30CrMnSiNi2 STEEL
https://doi.org/10.17073/0368-0797-2014-12-56-62
Abstract
The structure of a surface layer of highstrength 30CrMnSiNi2 steel modified by means of ion beam treatment was investigated by optical, scanning electron and transmission electron microscopy as well as X-ray diffraction analysis. Formation of softened surface layer with depth up to 100 μm was revealed due to the specimens heating in the course of treatment. Cyclic and static tension tests have been carried out for steel specimens in assupplied state and after surface irradiation by Zr+ ion beam. It is revealed that modified surface layer during cyclic loading inhibits initiation and development of a fatigue crack, resulting in a more uniform strain distribution along the working part of the specimen. Differences of the specimen deformation behavior and changes of their mechanical properties are analyzed. Displacement vectors and strain distribution fields were constructed according to micrographs obtained during tests, which illustrate regularities of fatigue crack growth in specimens without treatment and after irradiation..
About the Authors
I. V. Vlasov
Institute of strength physics and materials science SB RAS (2/4, Akademicheskii pr., Tomsk, 634036, Russia)
National Research Tomsk Polytechnic University (30, Lenina pr., Tomsk, 634036, Russia)
Russian Federation
Russian Federation
Technician of laboratory of Physical Meso-mechanics and non-destructive testing, Engineer
S. V. Panin
Institute of strength physics and materials science SB RAS (2/4, Akademicheskii pr., Tomsk, 634036, Russia)
National Research Tomsk Polytechnic University (30, Lenina pr., Tomsk, 634036, Russia)
Russian Federation
Dr. Sci. (Eng.), Professor, Deputy Director on research, Professor
Russian Federation
Dr. Sci. (Eng.), Professor, Deputy Director on research, Professor
V. P. Sergeev
Institute of strength physics and materials science SB RAS (2/4, Akademicheskii pr., Tomsk, 634036, Russia)
National Research Tomsk Polytechnic University (30, Lenina pr., Tomsk, 634036, Russia)
Russian Federation
Dr. Sci. (Eng.), Professor, Deputy Director on research and development, Professor
Russian Federation
Dr. Sci. (Eng.), Professor, Deputy Director on research and development, Professor
Sunder Ramasubbu
National Research Tomsk Polytechnic University (30, Lenina pr., Tomsk, 634036, Russia)
Russian Federation
Cand. Sci., Assist. Professor
Russian Federation
Cand. Sci., Assist. Professor
P. O. Marushchyak
I. Pulyi Ternopil State Technical University (56, Russkaya st., Ternopol’, 46001, Ukraine)
Ukraine
Dr. Sci. (Eng.), Professor
Ukraine
Dr. Sci. (Eng.), Professor
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For citations:
Vlasov I.V., Panin S.V., Sergeev V.P., Ramasubbu S., Marushchyak P.O. THE INFLUENCE OF Zr+ ION-BEAM PROCESSING ON STRUCTURE AND FATIGUE DURABILITY OF 30CrMnSiNi2 STEEL. Izvestiya. Ferrous Metallurgy. 2014;57(12):56-62. (In Russ.) https://doi.org/10.17073/0368-0797-2014-12-56-62
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