Elastic Constants of Single-Crystalline NiTi Studied by Resonant Ultrasound Spectroscopy
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F25%3A00642536" target="_blank" >RIV/61388998:_____/25:00642536 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/25:00642536
Result on the web
<a href="https://link.springer.com/article/10.1007/s40830-025-00534-z" target="_blank" >https://link.springer.com/article/10.1007/s40830-025-00534-z</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s40830-025-00534-z" target="_blank" >10.1007/s40830-025-00534-z</a>
Alternative languages
Result language
angličtina
Original language name
Elastic Constants of Single-Crystalline NiTi Studied by Resonant Ultrasound Spectroscopy
Original language description
Contactless, laser-based resonant ultrasound spectroscopy was utilized to monitor changes in elastic properties in single-crystalline NiTi shape memory alloy. It was observed that the elastic behavior of the temperature-induced B19 ' martensite, which is formed by a fine mixture of variants, adopts the symmetry elements of the parent austenite phase and thus, the changes over the transformation temperature can be represented by the temperature evolution of three cubic elastic coefficients. The experiments confirm that the transition during the cooling run is preceded by pronounced softening of the c(44) elastic coefficient, which leads to nearly complete vanishing of elastic anisotropy prior to the transition. Below the transition, this coefficient remains soft, and the character of anisotropy switches from c(44)/c ' > 1 to c(44)/c ' < 1. We rationalize this behavior from the mechanical instability of the B19 ' lattice with respect to shears along the (001)B19 ' plane, which is known from first-principles calculations.
Czech name
—
Czech description
—
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
Result was created during the realization of more than one project. More information in the Projects tab.
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
Shape Memory and Superelasticity
ISSN
2199-384X
e-ISSN
2199-3858
Volume of the periodical
11
Issue of the periodical within the volume
2
Country of publishing house
CH - SWITZERLAND
Number of pages
9
Pages from-to
230-238
UT code for WoS article
001455757200001
EID of the result in the Scopus database
2-s2.0-105001484252