Work

Laser shape setting feasibility for promoting shape memory effect in thin Ti rich-NiTi wires

Year: 2025

Type: article

Abstract: Shape setting is a crucial step in the production route for NiTi Shape Memory Alloys (SMAs) for tuning the final functional performances. A laser beam can be effectively used as an alternative method for a fast shape setting of NiTi wires, with the goal of inducing martensitic transformation and the corresponding thermo-mechanical response. In this work, Ti rich NiTi wires were subjected to laser scanning for inducing Shape Memory Effect. The feasibility of the laser heat treatment was studied by exploring the effect of the principal laser parameters, such as laser power and scanning speed, on the promotion of the martensitic transformation. It was demonstrated that laser shape setting can be successfully carried out on thin Ti rich NiTi wires for promoting the martensitic transformation in a temperature range of interest for promising SME performance.

Source: Procedia Structural Integrity

DOI: 10.1016/j.prostr.2025.07.017

Authors: Carlo Alberto Biffi, Gloria Ischia, Stefano Gialanella, Ausonio Tuissi

Institutions: Institute of Condensed Matter Chemistry and Technologies for Energy, National Research Council, University of Trento

Language: English

Topic: Shape Memory Alloy Transformations

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: diamond

OpenAlex ID: W4412436696

FWCI: 0.212

Cites: 12

Cited by: 1

Related to: 10