An unconventional method for shape setting of NiTi shape memory alloy wires is proposed. A laser beam was used to induce straight shape, superelasticity and shape memory effects to thin NiTi wires. Laser treatment revealed to be a suitable and reliable alternative to the conventional final thermal treatment of NiTi wires, which is normally carried out in annealing furnaces. Thermo-mechanical and calorimetric tests showed that the laser heat treatment confers optimal functional properties, analogous to those of commercially available NiTi wires.

Laser shape setting of thin NiTi wires

BIFFI, CARLO ALBERTO;CASATI, RICCARDO;TUISSI, AUSONIO
2016

Abstract

An unconventional method for shape setting of NiTi shape memory alloy wires is proposed. A laser beam was used to induce straight shape, superelasticity and shape memory effects to thin NiTi wires. Laser treatment revealed to be a suitable and reliable alternative to the conventional final thermal treatment of NiTi wires, which is normally carried out in annealing furnaces. Thermo-mechanical and calorimetric tests showed that the laser heat treatment confers optimal functional properties, analogous to those of commercially available NiTi wires.
functional characterization; laser technology; nitinol; shape memory alloys; shape memory NiTi; shape setting; superelastic NiTi; Materials Science (all); Mechanics of Materials; Condensed Matter Physics; Civil and Structural Engineering; Atomic and Molecular Physics, and Optics; Electrical and Electronic Engineering; Signal Processing
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11311/1000227
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