The triple-shape memory effect in NiTi shape memory alloys
We report two approaches to realize the triple-shape memory effect (SME), i.e., returning to the original shape from the temporary shape through one intermediate shape in a gradual/step-by-step heating induced recovery, in NiTi shape memory alloys (SMAs). In the programming process (which is to fix...
Main Authors: | , , , |
---|---|
Other Authors: | |
Format: | Journal Article |
Language: | English |
Published: |
2013
|
Subjects: | |
Online Access: | https://hdl.handle.net/10356/97456 http://hdl.handle.net/10220/11980 |
_version_ | 1811686871645814784 |
---|---|
author | Tang, Cheng Huang, Wei Min Wang, Chang Chun Purnawali, Hendra |
author2 | School of Mechanical and Aerospace Engineering |
author_facet | School of Mechanical and Aerospace Engineering Tang, Cheng Huang, Wei Min Wang, Chang Chun Purnawali, Hendra |
author_sort | Tang, Cheng |
collection | NTU |
description | We report two approaches to realize the triple-shape memory effect (SME), i.e., returning to the original shape from the temporary shape through one intermediate shape in a gradual/step-by-step heating induced recovery, in NiTi shape memory alloys (SMAs). In the programming process (which is to fix the temporary shape) in both approaches, the deformation is uniform throughout the whole length of the SMA samples without introducing any permanent change in the material properties. The requirements/conditions for this phenomenon and the underlying mechanisms are presented, together with experimental verifications. As revealed, with this technique, we are now able to achieve 'the material is the machine' for well controlled multi-positional maneuvers in SMAs. |
first_indexed | 2024-10-01T05:07:18Z |
format | Journal Article |
id | ntu-10356/97456 |
institution | Nanyang Technological University |
language | English |
last_indexed | 2024-10-01T05:07:18Z |
publishDate | 2013 |
record_format | dspace |
spelling | ntu-10356/974562020-03-07T13:22:17Z The triple-shape memory effect in NiTi shape memory alloys Tang, Cheng Huang, Wei Min Wang, Chang Chun Purnawali, Hendra School of Mechanical and Aerospace Engineering DRNTU::Engineering::Mechanical engineering We report two approaches to realize the triple-shape memory effect (SME), i.e., returning to the original shape from the temporary shape through one intermediate shape in a gradual/step-by-step heating induced recovery, in NiTi shape memory alloys (SMAs). In the programming process (which is to fix the temporary shape) in both approaches, the deformation is uniform throughout the whole length of the SMA samples without introducing any permanent change in the material properties. The requirements/conditions for this phenomenon and the underlying mechanisms are presented, together with experimental verifications. As revealed, with this technique, we are now able to achieve 'the material is the machine' for well controlled multi-positional maneuvers in SMAs. 2013-07-22T06:11:02Z 2019-12-06T19:42:57Z 2013-07-22T06:11:02Z 2019-12-06T19:42:57Z 2012 2012 Journal Article Tang, C., Huang, W. M., Wang, C. C., & Purnawali, H. (2012). The triple-shape memory effect in NiTi shape memory alloys. Smart Materials and Structures, 21(8), 085022-. 0964-1726 https://hdl.handle.net/10356/97456 http://hdl.handle.net/10220/11980 10.1088/0964-1726/21/8/085022 en Smart materials and structures © 2012 IOP Publishing Ltd. |
spellingShingle | DRNTU::Engineering::Mechanical engineering Tang, Cheng Huang, Wei Min Wang, Chang Chun Purnawali, Hendra The triple-shape memory effect in NiTi shape memory alloys |
title | The triple-shape memory effect in NiTi shape memory alloys |
title_full | The triple-shape memory effect in NiTi shape memory alloys |
title_fullStr | The triple-shape memory effect in NiTi shape memory alloys |
title_full_unstemmed | The triple-shape memory effect in NiTi shape memory alloys |
title_short | The triple-shape memory effect in NiTi shape memory alloys |
title_sort | triple shape memory effect in niti shape memory alloys |
topic | DRNTU::Engineering::Mechanical engineering |
url | https://hdl.handle.net/10356/97456 http://hdl.handle.net/10220/11980 |
work_keys_str_mv | AT tangcheng thetripleshapememoryeffectinnitishapememoryalloys AT huangweimin thetripleshapememoryeffectinnitishapememoryalloys AT wangchangchun thetripleshapememoryeffectinnitishapememoryalloys AT purnawalihendra thetripleshapememoryeffectinnitishapememoryalloys AT tangcheng tripleshapememoryeffectinnitishapememoryalloys AT huangweimin tripleshapememoryeffectinnitishapememoryalloys AT wangchangchun tripleshapememoryeffectinnitishapememoryalloys AT purnawalihendra tripleshapememoryeffectinnitishapememoryalloys |