Počet záznamů: 1
Microstructure changes during non-conventional heat treatment of thin Ni–Ti wires by pulsed electric current studied by transmissionelectron microscopy
- 1.
SYSNO ASEP 0354464 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Microstructure changes during non-conventional heat treatment of thin Ni–Ti wires by pulsed electric current studied by transmissionelectron microscopy Tvůrce(i) Delville, R. (BE)
Malard, B. (FR)
Pilch, Jan (FZU-D) RID
Šittner, Petr (FZU-D) RID, ORCID
Schryvers, D. (BE)Zdroj.dok. Acta Materialia. - : Elsevier - ISSN 1359-6454
Roč. 58, č. 13 (2010), s. 4503-4513Poč.str. 13 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova TEM ; heat treatment ; SMA ; martensitic transformation Vědní obor RIV BM - Fyzika pevných látek a magnetismus CEP IAA200100627 GA AV ČR - Akademie věd CEZ AV0Z10100520 - FZU-D (2005-2011) UT WOS 000279787100020 DOI 10.1016/j.actamat.2010.04.046 Anotace 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. Pracoviště Fyzikální ústav Kontakt Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Rok sběru 2011
Počet záznamů: 1