Grishin A., Talskikh K., Safariants A., Los A.

ANTON GRISHIN, Engineer, e-mail: antoxa.o_o@mail.ru
KRISTINA TALSKIKH, Engineer, e-mail: catswild@mail.ru
ALEXANDER SAFARIANTS, Student, e-mail: sanya.sinister@gmail.com
Department of Welding, School of Engineering
Far Eastern Federal University
8 Sukhanova St., Vladivostok, 690091, Russia
ANDREY LOS, Head of Non-Destructive Testing Laboratory
Engineering Systems Diagnostics Regional Center LLC., e-mail: rcdis2004@mail.ru
3-а, Karl Liebknecht St., Vladivostok, 690001, Russia

Effect of high-frequency vibration on the steel 20 welded joints structure

Abstract: Technological pipeline systems are used at various industrial enterprises for transportation of raw materials, manufactured products, as well as hazardous flammable chemicals; therefore it is extremely important to ensure their safe operation. However, during operation, these systems may be in conditions that drastically reduce their durability. This is largely due to the occurrence of variable high-frequency loads related to interfacing with pump-compressor equipment. This article describes the results of high-frequency fatigue tests of welded specimens from pipe steel 20, which have previously undergone non-destructive X-ray inspection, and presents the main results and conclusions of the studies performed and structural analysis.

Keywords: technological pipeline, steel 20, high-frequency tests, welded joint, microstructure, microhardness, radiographic control.

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