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...

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Main Authors: Tang, Cheng, Huang, Wei Min, Wang, Chang Chun, Purnawali, Hendra
Other Authors: School of Mechanical and Aerospace Engineering
Format: Journal Article
Language:English
Published: 2013
Subjects:
Online Access:https://hdl.handle.net/10356/97456
http://hdl.handle.net/10220/11980
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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.
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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
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