Linking acoustic emission signals to deformation mechanisms in magnesium
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F25%3A00642564" target="_blank" >RIV/61388998:_____/25:00642564 - isvavai.cz</a>
Result on the web
<a href="https://journals.aps.org/prmaterials/abstract/10.1103/jxws-jnf7" target="_blank" >https://journals.aps.org/prmaterials/abstract/10.1103/jxws-jnf7</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/jxws-jnf7" target="_blank" >10.1103/jxws-jnf7</a>
Alternative languages
Result language
angličtina
Original language name
Linking acoustic emission signals to deformation mechanisms in magnesium
Original language description
Nondestructive identification of deformation mechanisms at the microscopic scale is a significant challenge, yet it holds the potential to advance the understanding of damage evolution across many areas of materials mechanics. In this study, we combine spectral analysis of acoustic emission (AE) waveforms with dimensionality reduction to cluster individual AE events occurring during the deformation of a magnesium single crystal. Based on prior knowledge, according to which twinning is preferred at low stresses and slip is expected to become dominant when twinning is exhausted, we link these clusters to their related deformation mechanisms. This enables unsupervised classification of each AE event into the two deformation mechanisms. Furthermore, based on resonance ultrasound spectroscopy and modal calculations, we identify a frequency signature in AE signals, corresponding to one of the sample's resonant modes, and we associate it with slip. This allows us to define a single traceable, physically based classification parameter that performs comparably to the machine learning–based clustering. The results of both classification methods are consistent with each other and align with the expected deformation behavior and the shape of the loading curve. At the same time, they reveal detailed quantitative information at the level of individual AE events, which uncovers the evolution of the transition from twinning-dominant to slip-dominant behavior.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20501 - Materials engineering
Result continuities
Project
<a href="/en/project/GA24-10366S" target="_blank" >GA24-10366S: Coupled dissipative processes and deformation mechanisms in metastable titanium alloys</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review Materials
ISSN
2475-9953
e-ISSN
2475-9953
Volume of the periodical
9
Issue of the periodical within the volume
10
Country of publishing house
US - UNITED STATES
Number of pages
14
Pages from-to
103805
UT code for WoS article
001613255300002
EID of the result in the Scopus database
2-s2.0-105022974686