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In-situ synchrotron X-Ray diffraction investigation of the fast recovery of microstructure during electropulse treatment of heavily cold drawn nanocrystalline Ni-Ti wires
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SYSNO ASEP 0365167 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title In-situ synchrotron X-Ray diffraction investigation of the fast recovery of microstructure during electropulse treatment of heavily cold drawn nanocrystalline Ni-Ti wires Author(s) Malard, B. (FR)
Pilch, Jan (FZU-D) RID
Šittner, Petr (FZU-D) RID, ORCID
Delville, R. (BE)
Curfs, C. (FR)Source Title Solid State Phenomena - ISSN 1012-0394
172-174, č. 6 (2011), s. 1243-1248Number of pages 6 s. Language eng - English Country CH - Switzerland Keywords recovery process ; electropulse treatment ; in-situ analysis ; superelasticity Subject RIV BM - Solid Matter Physics ; Magnetism R&D Projects IAA200100627 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) LA10010 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z10100520 - FZU-D (2005-2011) UT WOS 000303359700192 DOI 10.4028/www.scientific.net/SSP.172-174.1243 Annotation Recovery processes responsible for evolution of microstructures in 0.1mm thin cold-drawn Ni-Ti shape memory alloy wire heat treated by DC electric pulse were investigated by combination of in-situ tensile stress - strain, electrical resistance and X-ray diffraction measurements. The X-ray data were used to obtain direct experimental information on the evolution of the phase fractions, internal strain and defects in the microstructure evolving through activation of a sequence of recovery processes during the short time electropulse treatment. It is shown that superelastic functional properties of the treated Ni-Ti wire can be precisely set by controlling the progress of the recovery processes by prescribing the time evolution of temperature T(t) and tensile stress s(t) (displacement control) in the treated wire. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2012
Number of the records: 1