Coupling of ultrasounds with the Portevin–Le Chatelier serrations as observed in aluminium-magnesium alloy in mini-samples tensile tests

Tomasz Brynk , Krzysztof Kurzydłowski


This work presents the first observation of ultrasound and eddy currents coupling with Portevin–Le Chatelier serrations during tensile straining of aluminium-magnesium alloy small-size samples, of a gauge section 5.0 × 0.8 × 0.6 mm3. Significant changes in serration characteristics were detected and quantified using Fast Fourier Transform analyses in the 120–160 MPa stress range under the influence of 2.5 and 5.0 MHz ultrasound, and a 60 kHz eddy current. Digital Image Correlation measurements showed that the change in singular slip bands movement is surprisingly regular all along the sample gauge sections accompanied with a reduction in the serrations' frequency.
Author Tomasz Brynk (FMSE / DMD)
Tomasz Brynk,,
- Division of Materials Design
, Krzysztof Kurzydłowski (FMSE / DMD) - [Bialystok University of Technology (PB)]
Krzysztof Kurzydłowski,,
- Division of Materials Design
- Politechnika Białostocka
Journal seriesScripta Materialia, [Scripta Metallurgica et Materialia], ISSN 1359-6462, [0036-9748]
Issue year2020
Publication size in sheets0.5
Keywords in EnglishAluminium alloys Portevin–Le Chatelier effect, Dynamic strain ageing, Acoustic methods, Eddy current
ASJC Classification2200 General Engineering; 2500 General Materials Science; 3104 Condensed Matter Physics
Languageen angielski
2020-Coupling of ultrasounds with the Portevin–Le Chatelier serrations.pdf 3.54 MB
Score (nominal)140
Score sourcejournalList
ScoreMinisterial score = 140.0, 07-05-2020, ArticleFromJournal
Publication indicators WoS Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2016 = 1.696; WoS Impact Factor: 2018 = 4.539 (2) - 2018=4.559 (5)
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