Thermomechanical response of NiTi shape-memory nanoprecipitates in TiV alloys
Name
PhysRevMaterials.1.033610.pdf
Size
4.24 MB
Format
Adobe PDF
Checksum (MD5)
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Author(s)
Maisel, S. B.
Ko, W.-S.
Grabowski, B.
Neugebauer, J.
Zhang, J.-L.
Date Issued
August 2017
Journal
Physical Review Materials
Publisher
American Physical Society
Citation
Maisel, S. B. et al. "Thermomechanical response of NiTi shape-memory nanoprecipitates in TiV alloys." Physical Review Materials 1, 3 (August 2017): 033610 © 2017 The Author(s)
Version
Final published version
Abstract
We study the properties of NiTi shape-memory nanoparticles coherently embedded in TiV matrices using three-dimensional atomistic simulations based on the modified embedded-atom method. To this end, we develop and present a suitable NiTiV potential for our simulations. Employing this potential, we identify the conditions under which the martensitic phase transformation of such a nanoparticle is triggered—specifically, how these conditions can be tuned by modifying the size of the particle, the composition of the surrounding matrix, or the temperature and strain state of the system. Using these insights, we establish how the transformation temperature of such particles can be influenced and discuss the practical implications in the context of shape-memory strengthened alloys.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Terms of Use
Creative Commons Attribution
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PhysRevMaterials.1.033610
