Shape memory and pseudoelasticity in metal nanowires.
Journal Article
·
· Proposed for publication in Nature Materials.
OSTI ID:972482
Structural reorientations in metallic fcc nanowires are controlled by a combination of size, thermal energy, and the type of defects formed during inelastic deformation. By utilizing atomistic simulations, we show that certain fcc nanowires can exhibit both shape memory and pseudoelastic behavior. We also show that the formation of defect-free twins, a process related to the material stacking fault energy, nanometer size scale, and surface stresses is the mechanism that controls the ability of fcc nanowires of different materials to show a reversible transition between two crystal orientations during loading and thus shape memory and pseudoelasticity.
- Research Organization:
- Sandia National Laboratories
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 972482
- Report Number(s):
- SAND2005-4432J
- Journal Information:
- Proposed for publication in Nature Materials., Journal Name: Proposed for publication in Nature Materials.
- Country of Publication:
- United States
- Language:
- English
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