Melt-cast microfibers of Cu-based shape memory alloy adopt a favorable texture for superelasticity
Continuous production of shape memory alloy (SMA) fibers and microfibers is a non-trivial task due to the challenges associated with their undeformed memory and, for many copper-based SMAs, brittleness in non-engineered forms. Here we demonstrate the direct continuous casting of super-meter-scale Cu...
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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Elsevier
2018
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| Online Access: | http://hdl.handle.net/1721.1/115100 https://orcid.org/0000-0001-7660-7210 https://orcid.org/0000-0001-9856-2682 |
| _version_ | 1826205920897531904 |
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| author | Tuncer, Nihan Schuh, Christopher A |
| author2 | Massachusetts Institute of Technology. Department of Materials Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Materials Science and Engineering Tuncer, Nihan Schuh, Christopher A |
| author_sort | Tuncer, Nihan |
| collection | MIT |
| description | Continuous production of shape memory alloy (SMA) fibers and microfibers is a non-trivial task due to the challenges associated with their undeformed memory and, for many copper-based SMAs, brittleness in non-engineered forms. Here we demonstrate the direct continuous casting of super-meter-scale Cu-based SMA microfibers into a desirable oligocrystalline microstructure that is not brittle. The melt-casting process used here develops a favorable texture as well, leading to large superelastic strains (above 8%), beyond what is typical for non-single-crystal SMAs. Keywords: Shape memory alloys; Fibers; Martensitic phase transformations |
| first_indexed | 2024-09-23T13:21:09Z |
| format | Article |
| id | mit-1721.1/115100 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T13:21:09Z |
| publishDate | 2018 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | mit-1721.1/1151002022-09-28T13:37:48Z Melt-cast microfibers of Cu-based shape memory alloy adopt a favorable texture for superelasticity Tuncer, Nihan Schuh, Christopher A Massachusetts Institute of Technology. Department of Materials Science and Engineering Schuh, Christopher A Tuncer, Nihan Schuh, Christopher A Continuous production of shape memory alloy (SMA) fibers and microfibers is a non-trivial task due to the challenges associated with their undeformed memory and, for many copper-based SMAs, brittleness in non-engineered forms. Here we demonstrate the direct continuous casting of super-meter-scale Cu-based SMA microfibers into a desirable oligocrystalline microstructure that is not brittle. The melt-casting process used here develops a favorable texture as well, leading to large superelastic strains (above 8%), beyond what is typical for non-single-crystal SMAs. Keywords: Shape memory alloys; Fibers; Martensitic phase transformations Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies (Contract W911NF-13-D-0001) 2018-04-30T17:29:46Z 2018-04-30T17:29:46Z 2016-03 2016-02 Article http://purl.org/eprint/type/JournalArticle 1359-6462 http://hdl.handle.net/1721.1/115100 Tuncer, Nihan, and Christopher A. Schuh. “Melt-Cast Microfibers of Cu-Based Shape Memory Alloy Adopt a Favorable Texture for Superelasticity.” Scripta Materialia 117 (May 2016): 46–50 © 2016 Elsevier Ltd https://orcid.org/0000-0001-7660-7210 https://orcid.org/0000-0001-9856-2682 en_US https://doi.org/10.1016/j.scriptamat.2016.02.011 Scripta Materialia Creative Commons Attribution-NonCommercial-NoDerivs License http://creativecommons.org/licenses/by-nc-nd/4.0/ application/pdf Elsevier Prof. Schuh via Erja Kajosalo |
| spellingShingle | Tuncer, Nihan Schuh, Christopher A Melt-cast microfibers of Cu-based shape memory alloy adopt a favorable texture for superelasticity |
| title | Melt-cast microfibers of Cu-based shape memory alloy adopt a favorable texture for superelasticity |
| title_full | Melt-cast microfibers of Cu-based shape memory alloy adopt a favorable texture for superelasticity |
| title_fullStr | Melt-cast microfibers of Cu-based shape memory alloy adopt a favorable texture for superelasticity |
| title_full_unstemmed | Melt-cast microfibers of Cu-based shape memory alloy adopt a favorable texture for superelasticity |
| title_short | Melt-cast microfibers of Cu-based shape memory alloy adopt a favorable texture for superelasticity |
| title_sort | melt cast microfibers of cu based shape memory alloy adopt a favorable texture for superelasticity |
| url | http://hdl.handle.net/1721.1/115100 https://orcid.org/0000-0001-7660-7210 https://orcid.org/0000-0001-9856-2682 |
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