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Statements

Subject Item
n2:RIV%2F68378271%3A_____%2F11%3A00358978%21RIV12-AV0-68378271
rdf:type
n9:Vysledek skos:Concept
dcterms:description
Microstructural changes taking place during the heat treatment of cold-worked NiTi alloy are of key interest in shape memory alloy technology, since they are responsible for setting the austenite shape and functional properties of the heat-treated alloy. In this work, microstructural evolution during non-conventional electropulse heat treatment of thin NiTi filaments was investigated in a unique high-speed in situ synchrotron X-ray diffraction experiment with simultaneous evaluation of the tensile force and electrical resistivity of the treated wire. The in situ results provide direct experimental evidence on the evolution of the internal stress and density of defects during fast heating from 20 C to 700 C. This evidence is used to characterize a sequence of dynamic recovery and recrystallization processes responsible for the microstructure and superelastic functional property changes during the electropulse treatments. Microstructural changes taking place during the heat treatment of cold-worked NiTi alloy are of key interest in shape memory alloy technology, since they are responsible for setting the austenite shape and functional properties of the heat-treated alloy. In this work, microstructural evolution during non-conventional electropulse heat treatment of thin NiTi filaments was investigated in a unique high-speed in situ synchrotron X-ray diffraction experiment with simultaneous evaluation of the tensile force and electrical resistivity of the treated wire. The in situ results provide direct experimental evidence on the evolution of the internal stress and density of defects during fast heating from 20 C to 700 C. This evidence is used to characterize a sequence of dynamic recovery and recrystallization processes responsible for the microstructure and superelastic functional property changes during the electropulse treatments.
dcterms:title
In situ investigation of the fast microstructure evolutionduring electropulse treatment of cold drawn NiTi wires In situ investigation of the fast microstructure evolutionduring electropulse treatment of cold drawn NiTi wires
skos:prefLabel
In situ investigation of the fast microstructure evolutionduring electropulse treatment of cold drawn NiTi wires In situ investigation of the fast microstructure evolutionduring electropulse treatment of cold drawn NiTi wires
skos:notation
RIV/68378271:_____/11:00358978!RIV12-AV0-68378271
n9:predkladatel
n10:ico%3A68378271
n3:aktivita
n5:P n5:Z
n3:aktivity
P(GAP107/10/0824), P(GAP108/10/1296), P(IAA200100627), P(LA10010), Z(AV0Z10100520)
n3:cisloPeriodika
4
n3:dodaniDat
n15:2012
n3:domaciTvurceVysledku
n6:5098203 n6:7813880
n3:druhVysledku
n11:J
n3:duvernostUdaju
n14:S
n3:entitaPredkladatele
n17:predkladatel
n3:idSjednocenehoVysledku
204016
n3:idVysledku
RIV/68378271:_____/11:00358978
n3:jazykVysledku
n19:eng
n3:klicovaSlova
shape memory alloys; recovery; recrystallization; Joule heating; superelasticity
n3:klicoveSlovo
n8:recrystallization n8:recovery n8:superelasticity n8:shape%20memory%20alloys n8:Joule%20heating
n3:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n3:kontrolniKodProRIV
[EE645621F6AD]
n3:nazevZdroje
Acta Materialia
n3:obor
n18:BM
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
5
n3:projekt
n4:GAP108%2F10%2F1296 n4:IAA200100627 n4:LA10010 n4:GAP107%2F10%2F0824
n3:rokUplatneniVysledku
n15:2011
n3:svazekPeriodika
59
n3:tvurceVysledku
Delville, R. Curfs, C. Šittner, Petr Pilch, Jan Malard, B.
n3:wos
000287265100023
n3:zamer
n20:AV0Z10100520
s:issn
1359-6454
s:numberOfPages
15
n7:doi
10.1016/j.actamat.2010.11.018