Registration Number
0225U000736,
(0122U001893)
, R & D reports
Title
Investigation of methods to increase the corrosion fatigue resistance of welded joints of structural steels with a yield strength of more than 350 MPa with a given level of accumulated fatigue damage
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Дослідження способів підвищення опору корозійній втомі зварних з’єднань конструкційних сталей з границею текучості понад 350 МПа з заданим рівнем накопичених втомних пошкоджень
Head
Vitalii V. Knysh, Доктор юридичних наук
Registration Date
17-01-2025
Organization
E. O. Paton Elektric Welding Institute National Academy of scinces of Ukraine
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Research of methods of intensive plastic deformation of the surface to increase the resistance to corrosion fatigue of welded joints of structural steels with a yield strength of more than 350 MPa with a given level of accumulated fatigue damage.
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The combined effects of severe plastic deformation induced by high-frequency mechanical impact (HFMI) treatment and the electric discharge surface alloying (EDSA) with chromium on the corrosion fatigue life of welded joints with and without accumulated fatigue damage was investigated. The effect of 3% NaCl solution on reducing the fatigue resistance characteristics of as-welded and treated by HFMI joints of 09G2S and 15KHSND steels was established. The effectiveness of using HFMI technology to increase the fatigue life of welded joints in a 3% NaCl solution at the manufacturing stage and after long-term operation (with accumulated fatigue damage) was studied. The possibility of using HFMI technology to increase the fatigue life of welded joints in a 3% NaCl solution after the initiation of surface fatigue cracks in the weld toe was investigated. The peculiarities of the structure and chemical composition of the metal in various combinations of EDSA with chromium and HFMP were revealed, the advantages of using the combined processing of HFMI+ EDSA in comparison with processing only with HFMI were shown.
Product Description
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Bulash Volodymyr M.
Voronin Serhii O.
Hnatenko Oleksii O.
Hryshanov Arkadii O.
Dyman Marianna M.
Kadyshev Andrii A.
Kadyshev Andrii Yu.
Katok Oleh A.
Klochkov Illia M.
Kovalchuk Oksana V.
Kozmina Iryna V.
Kot Volodymyr H.
Lenkova Natalia V.
Lohinova Yuliia V.
Mirianin Volodymyr M.
Malinova Larysa V.
Malhin Mykhailo H.
Martynenko Serhii І.
Moltasov Andrii V.
Mordiuk Bohdan M.
Motrunich Sviatoslav I.
Nahorna Nadiia I.
Parneta Anton I.
Parkhomenko Oleh I.
Postryhan Viktor A.
Serhieiev Oleksii O.
Solovei Serhii O.
Stoliarova Tetiana O.
Tkach Iryna H.
Tkach Pavlo M.
Tsysar Maksym O.
Chala Lidiia A.
Yushyn Viktor M.
Yavdoshсhyna Olena F.
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2025-01-17
