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 | |||||
| Journal series | Scripta Materialia, [Scripta Metallurgica et Materialia], ISSN 1359-6462, [0036-9748] | ||||
| Issue year | 2020 | ||||
| Vol | 174 | ||||
| Pages | 14-18 | ||||
| Publication size in sheets | 0.5 | ||||
| Keywords in English | Aluminium alloys Portevin–Le Chatelier effect, Dynamic strain ageing, Acoustic methods, Eddy current | ||||
| ASJC Classification | ; ; | ||||
| DOI | DOI:10.1016/j.scriptamat.2019.08.024 | ||||
| URL | https://www.sciencedirect.com/science/article/pii/S1359646219304944 | ||||
| Language | en angielski | ||||
| File |
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| Score (nominal) | 140 | ||||
| Score source | journalList | ||||
| Score | = 140.0, 07-05-2020, ArticleFromJournal | ||||
| Publication indicators | = 0; : 2016 = 1.696; : 2018 = 4.539 (2) - 2018=4.559 (5) | ||||
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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