Number of the records: 1
Correlation between acoustic emission and stress evolution during single twin boundary motion in Ni–Mn–Ga magnetic shape memory single crystal
- 1.
SYSNO ASEP 0570383 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Correlation between acoustic emission and stress evolution during single twin boundary motion in Ni–Mn–Ga magnetic shape memory single crystal Author(s) Perevertov, Alexej (FZU-D) RID
Ševčík, Martin (UT-L) ORCID
Heczko, Oleg (FZU-D) RID, ORCIDNumber of authors 3 Article number 2200245 Source Title Physica Status Solidi : Rapid Research Letters. - : Wiley - ISSN 1862-6254
Roč. 17, č. 3 (2023)Number of pages 7 s. Language eng - English Country DE - Germany Keywords acoustic methods ; ferromagnetic shape memory alloy ; mechanical properties ; power law ; twinning Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) Subject RIV - cooperation Institute of Thermomechanics - Acoustics R&D Projects EF16_019/0000760 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GA19-09882S GA ČR - Czech Science Foundation (CSF) GA20-12624S GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support FZU-D - RVO:68378271 ; UT-L - RVO:61388998 UT WOS 000892550500001 EID SCOPUS 85143276600 DOI 10.1002/pssr.202200245 Annotation Stress evolution and related acoustic emission (AE) in modulated 10M martensite are simultaneously studied during compression forced motion of Type I and Type II single twin boundary (TB) resulting in microstructure reorientation and large deformation. The single TB of both types is formed in the same sample and traveled the same volume. The single boundary exhibits random jerky movement and for Type I the stress fluctuation can be directly correlated to AE signal. The AE during the single TB motion is an avalanche-like process surmounting the obstacles – crystal defects. The amplitudes of AE are approximately five times higher for Type I compared to Type II. The energy amplitudes of AE events follow the universal power law with different coefficients for Type I and Type II TB. The peak rate well correlates with stress fluctuation during TB motion. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2024 Electronic address https://doi.or/10.1002/pssr.202200245
Number of the records: 1