Thermomechanical treatment of thin NiTi filaments for textile applications by electric current

0355156 - FZÚ 2011 RIV US eng C - Conference Paper (international conference)
Pilch, Jan - Heller, Luděk - Šittner, Petr
Thermomechanical treatment of thin NiTi filaments for textile applications by electric current.
Proceedings from the Materials & Processes for Medical Devices Conference. Minneapolis: ASM International, 2010 - (Gilbert, J.), s. 232-237. ISBN 978-1-61503-039-2.
[Materials & Processes for Medical Devices Conference. Minneapolis (US), 10.08.2009-12.08.2009]
R&D Projects: GA ČR GAP108/10/1296; GA AV ČR(CZ) IAA200100627
Grant - others:EU FP6(XE) 019945
Institutional research plan: CEZ:AV0Z10100520
Keywords : NiTi * shape memory alloys * heat treatment * Joule heating
Subject RIV: BM - Solid Matter Physics ; Magnetism
http://asmcommunity.asminternational.org/content/Events/MPMD-09/images/MPMD2009.pdf

Functional properties of NiTi filaments can be in a large extent controlled by the heat treatment after final cold drawing. Conventionally, this is being performed by straight annealing in long tubular electrical furnace by SMA providers. An alternative heat treatment method by Joule heating called Final Thermomechanical Treatment by Electric Current /FTMT-EC/ is presented in this work. Results of key experiments performed while developing the method are discussed in this paper. A prototype of a compact device for FTMT-EC treatment of continuous NiTi filaments is presented and differences compared to the conventional heat treatment in a furnace are discussed.
Permanent Link: http://hdl.handle.net/11104/0193990