Grain structure and impact toughness of Al-Li alloy joints formed by friction stir welding

A. V. Eremin, A. V. Byakov, T. A. Kalashnikova, M. V. Burkov, S. V. Panin

Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции


The paper presents the investigation of the grain structure of initial homogeneous aluminum alloy AA8090 and welded specimen using friction stir welding. An optical microscopic study reveals four zones in the welding seam. In order to evaluate deformation and fracture behavior, Charpy V-notch impact tests were performed with the recording of emitted acoustic signals (acoustic emission) and capturing of loading diagrams by the instrumented striker. The formation of a large area of grain boundaries in welded specimen leads to a significant increase in the energy required for the initiation and propagation of a crack under impact loading, while initial alloy demonstrates low impact toughness. Registered acoustic signal was further analyzed by means of wavelet spectrum.

Язык оригиналаАнглийский
Название основной публикацииOil and Gas Engineering, OGE 2019
РедакторыAlexander V. Myshlyavtsev, Vladimir A. Likholobov, Vladimir L. Yusha
ИздательAmerican Institute of Physics Inc.
ISBN (электронное издание)9780735418844
СостояниеОпубликовано - 28 авг 2019
СобытиеOil and Gas Engineering Conference, OGE 2019 - Omsk, Российская Федерация
Продолжительность: 26 фев 201928 фев 2019

Серия публикаций

НазваниеAIP Conference Proceedings
ISSN (печатное издание)0094-243X
ISSN (электронное издание)1551-7616


КонференцияOil and Gas Engineering Conference, OGE 2019
СтранаРоссийская Федерация

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Plant Science
  • Physics and Astronomy(all)
  • Nature and Landscape Conservation

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