Measurement of dissolved hydrogen distributions after ultrasonic peening of heat-affected zone of welded joint

V. A. Polyanskiy, A. K. Belyaev, D. G. Arseniev, Yu A. Yakovlev, A. M. Polyanskiy, M. Stoschka

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

2 Scopus citations

Abstract

The paper is concerned with a new effect of the Ultrasonic Peening treatment of the weld on the distribution of dissolved hydrogen over the binding energies. The study is carried out with the help of the hydrogen diagnostics. It is shown that a small local ultrasonic effect on the weld zone can lead to substantial hydrogen redistribution. The average binding energy of hydrogen increases, and it results in reducing its mobility and ability to form zones of local hydrogen embrittlement in both the weld and the welded material. The study of the samples after fatigue tests revealed the accumulation of hydrogen in welded joints subjected to mechanical loads. In this case, the reduction in hydrogen mobility is a good explanation for the sustainable positive effect of the periodic Ultrasonic Peening treatment of the heat affected zone during operation of structures with welded structural elements.

Original languageEnglish
Title of host publicationMechanics, Resource and Diagnostics of Materials and Structures, MRDMS 2016
Subtitle of host publicationProceedings of the 10th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures
EditorsEduard S. Gorkunov, Sunder Ramasubbu, Viktor E. Panin
PublisherAmerican Institute of Physics
ISBN (Electronic)9780735414471
DOIs
StatePublished - 18 Nov 2016
Event10th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures, MRDMS 2016 - Ekaterinburg, Russian Federation
Duration: 16 May 201620 May 2016

Publication series

NameAIP Conference Proceedings
Volume1785
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference10th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures, MRDMS 2016
CountryRussian Federation
CityEkaterinburg
Period16/05/1620/05/16

Scopus subject areas

  • Physics and Astronomy(all)

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