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

Tomasz Brynk , Krzysztof Kurzydłowski

Abstract

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
Tomasz Brynk,,
-
, Krzysztof Kurzydłowski (FME / DMPE)
Krzysztof Kurzydłowski,,
- Department of Material and Production Engineering
Journal seriesScripta Materialia, [Scripta Metallurgica et Materialia], ISSN 1359-6462, [0036-9748], (N/A 140 pkt)
Issue year2020
Vol174
Pages14-18
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
DOIDOI:10.1016/j.scriptamat.2019.08.024
URL https://www.sciencedirect.com/science/article/pii/S1359646219304944
Internal identifierROC 19-20
Languageen angielski
LicenseJournal (articles only); published final; Other open licence; with publication
Score (nominal)140
Score sourcejournalList
ScoreMinisterial score = 140.0, 14-02-2020, ArticleFromJournal
Publication indicators 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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