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Softening of Shear Elastic Coefficients in Shape Memory Alloys Near the Martensitic Transition: A Study by Laser-Based Resonant Ultrasound Spectroscopy
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SYSNO ASEP 0535891 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Softening of Shear Elastic Coefficients in Shape Memory Alloys Near the Martensitic Transition: A Study by Laser-Based Resonant Ultrasound Spectroscopy Author(s) Sedlák, Petr (UT-L) RID, ORCID
Janovská, Michaela (UT-L) RID, ORCID
Bodnárová, Lucie (UT-L) RID, ORCID
Heczko, Oleg (FZU-D) RID, ORCID
Seiner, Hanuš (UT-L) RID, ORCIDNumber of authors 5 Article number 1383 Source Title Metals. - : MDPI
Roč. 10, č. 10 (2020)Number of pages 13 s. Publication form Online - E Language eng - English Country CH - Switzerland Keywords shape memory alloys ; martensitic transitions ; phonon softening ; resonant ultrasound spectroscopy ; laser-ultrasound ; elastic constants Subject RIV BI - Acoustics OECD category Acoustics Subject RIV - cooperation Institute of Physics - Acoustics R&D Projects EF15_003/0000493 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GA20-12624S GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support UT-L - RVO:61388998 ; FZU-D - RVO:68378271 UT WOS 000585338300001 EID SCOPUS 85092546605 DOI 10.3390/met10101383 Annotation We discuss the suitability of laser-based resonant ultrasound spectroscopy (RUS) for the characterization of soft shearing modes in single crystals of shape memory alloys that are close to the transition temperatures. We show, using a numerical simulation, that the RUS method enables the accurate determination of the c‘ shear elastic coefficient, even for very strong anisotropy, and without being sensitive to misorientations of the used single crystal. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2021 Electronic address https://www.mdpi.com/2075-4701/10/10/1383
Number of the records: 1