Abstract
In this study, two-dimensional functionally graded NiTi thin plates were created by laser surface scanning anneal. Owing to the natural degradation of heat penetrating into the material, a temperature gradient within the thickness was created by laser surface interaction and heat conduction. A microstructural gradient was created due to partial annealing within the temperature field. The microstructural variation through the thickness was characterized by hardness measurement and layered differential scanning calorimetry analysis. The microstructural gradient led to a unique shape memory effect, involving shape change in two opposite directions upon one heating, analogous to stingray motion. Such behaviour also experiences enlarged temperature windows for both the forward and reverse martensitic transformations, rendering high controllability of actuation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
