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Ultrasonic Impact Treatment of Surface of Structures and Constructions

Work number - P 29 FILED

Presented by G.V.Kurdyumov Institute for Metal Physics of NAS of Ukraine

Authors: Mordyuk Bohdan Mykolayovych, Prokopenko Georgiy Ivanovych, Solovei Sergiy Oleksandrovych, Klochkov Illya Mykolayovych, Voloshko Svitlana Mykhailivna, Lynnyk Georgiy Olegovych, Krasovskiy Taras Anatoliyovych, Volochai Valeriy Volodymyrovych

The purpose of the work is to increase the bearing capacity and resource of industrial products, welded structures and constructions owing to formationby ultrasonic impact treatment technology, which, severe deformation along with the (UIT) the surface layer of superior physical and mechanical properties.

On the base of theoretical and experimental studies the mechanisms of the structure-phase evolution and nanostructuring in the modified layers of metallic materials were established. Scientific bases for ultrasonic impact hardening of metallic surfaces are created. Industrial portable equipment for ultrasonic impact treatment was developed and manufactured.

The underlying conceptual principles for increasing the resource of new and prolonged exploited products, welded structures and constructions by modifying their surface are developed on the basis of modern approaches to prolongation of the fatigue crack initiation stage and prevention of the crack development. The instrumental methods for establishing the effective technological parameters of UIT and for controlling the treatment quality are offered.

UIT was implemented at PJSC "Kryukiv Carriage Works" in the manufacture rout of the components and constructions of passenger carriage/ UIT is actively used in accordance with the regulatory documents of JSC "Ukrzaliznytsya" at repair and restoration works of the welded runways of the railway bridges to increase their operational resource.

Some of the authors’ developments have no analogues or complied with the best foreign counterparts. The obtained results implemented at the mentioned and other enterprises of various industries of Ukraine gave a comparative economic benefit of 2000millionuah, and a direct one of 225.53millionuah.

Number of publications: 258, including 5 monographs, 2 regulatory documents 230 articles (44 - in foreign journals). Total number of the authors publications citations according to the Scopusdatabase is 909, h-index – 15; total number of links in the Google Scholar database is 1561, h-index – 20. Novelty and competitive ability of the technical solutions were protected by 21 patents. 4 Doctoraland10 Ph.D. dissertationswereprepared.