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Survey of the in situ configuration of cold-rolled, nickel-rich NiTi sheets to create variable component functions

Materials Science and Engineering A
Publication Date
DOI: 10.1016/j.msea.2007.04.127
  • Niti Shape Memory Alloys
  • In Situ Configuration
  • Niti Sheets
  • Modular System
  • Material Programming
  • Laser Treatment


Abstract An outstanding feature of shape memory alloys is their potential to produce different functional effects, like thermal shape memory or superelasticity in one component. The cold-rolled NiTi sheet strips presented in this study offer various options, since they do not feature perceptible thermal shape memory or superelasticity due to a high dislocation density. Instead, to achieve a specific local function, the sheet strips are subjected to in situ heat treatment carried out by a laser or a local resistive heating element. There is a need to adjust the duration and intensity of the heat input in order to obtain different functional properties.

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