| Autor: |
Dohyung Kim, Ferretto, Irene, Leinenbach, Christian, Wookjin Lee |
| Zdroj: |
Advanced Materials Interfaces; 5/4/2022, Vol. 9 Issue 13, p1-11, 11p |
| Abstrakt: |
The additive manufacturing of shape memory materials, commonly known as 4D printing, facilitates the achievement of a complex 3D structure that possesses a temperature-dependent shape change functionality. Herein, it is demonstrated that complex 3D structures of Fe-based shape memory alloys (Fe-SMAs) can be produced through a 3D printing process of laser powder bed fusion (L-PBF). The 3D printed Fe-SMA shows good mechanical properties with much higher strength and stiffness than those in shape memory polymers. The printed Fe-SMAs manifest shape recovery behavior, demonstrating that material-inherent functional behaviors can be combined with the functionalities of the complex 3D structures to facilitate shape morphing, self-healing, and auxetic behavior and to achieve a lattice structure with extraordinary specific strength. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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