Transmission electron microscopy study of microstructural evolution in nanograined Ni-Ti microwires heat treated by electric pulse

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F11%3A00365169" target="_blank" >RIV/68378271:_____/11:00365169 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.4028/www.scientific.net/SSP.172-174.682" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/SSP.172-174.682</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/SSP.172-174.682" target="_blank" >10.4028/www.scientific.net/SSP.172-174.682</a>

Result language

angličtina

Original language name

Transmission electron microscopy study of microstructural evolution in nanograined Ni-Ti microwires heat treated by electric pulse

Original language description

Transmission electron microscopy and mechanical testing were employed to investigate the evolution of microstructure and functional superelastic properties of 0.1mm diameter as-drawn Ni-Ti wires subjected to a non-conventional heat treatment by controlled electric pulse current. This method enables a finer control of the recovery and recrystallisation processes taking place during the heat treatment and accordingly a better control on the final microstructure. The best functional properties were obtained for heat-treated Ni-Ti wires having a nanograined microstructure (20-50 nm) partially recovered through polygonization and partially recrystallized. Such microstructure is highly resistant against dislocation slip upon cycling, while microstructures annealed for longer time and showing mostly recrystallized grains were prone to dislocation slip, particularly as the grain size exceeds 100 nm.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

<a href="/en/project/LA10010" target="_blank" >LA10010: Membership in the European Synchrotron Radiation Facility</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2011

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Solid State Phenomena

ISSN

1012-0394

e-ISSN

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Volume of the periodical

172-174

Issue of the periodical within the volume

6

Country of publishing house

CH - SWITZERLAND

Number of pages

6

Pages from-to

682-687

UT code for WoS article

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EID of the result in the Scopus database

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