Microstructure changes during non-conventional heat treatment of thin Ni?Ti wires by pulsed electric current studied by transmissionelectron microscopy

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F10%3A00354464" target="_blank" >RIV/68378271:_____/10:00354464 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Microstructure changes during non-conventional heat treatment of thin Ni?Ti wires by pulsed electric current studied by transmissionelectron microscopy

Original language description

Transmission electron microscopy, electrical resistivity measurements and mechanical testing were employed to investigate the evolution of microstructure and functional superelastic properties of 0.1 mm diameter as-drawn Ni?Ti wires subjected to a non-conventional heat treatment by controlled electric pulse currents. This method enables a better control of the recovery and recrystallization processes taking place during the heat treatment and accordingly a better control on the final microstructure. Using a stepwise approach of millisecond pulse annealing, it is shown how the microstructure evolves from a severely deformed state with no functional properties to an optimal nanograined microstructure (20?50 nm) that is partially recovered through polygonization and partially recrystallized and that has the best functional properties.

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/IAA200100627" target="_blank" >IAA200100627: Stability and elastic properties of martensitic phases in shape memory alloys</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2010

Confidentiality

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

Name of the periodical

Acta Materialia

ISSN

1359-6454

e-ISSN

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Volume of the periodical

58

Issue of the periodical within the volume

13

Country of publishing house

GB - UNITED KINGDOM

Number of pages

13

Pages from-to

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UT code for WoS article

000279787100020

EID of the result in the Scopus database

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