A jumping shape memory alloy under heat

Shape memory alloys are typical temperature-sensitive metallic functional materials due to superelasticity and shape recovery characteristics. The conventional shape memory effect involves the formation and deformation of thermally induced martensite and its reverse transformation. The shape recover...

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Main Authors: Yang, Shuiyuan, Omori, Toshihiro, Wang, Cuiping, Liu, Yong, Nagasako, Makoto, Ruan, Jingjing, Kainuma, Ryosuke, Ishida, Kiyohito, Liu, Xingjun
Other Authors: School of Mechanical and Aerospace Engineering
Format: Article
Language:English
Published: 2016
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Online Access:https://hdl.handle.net/10356/84727
http://hdl.handle.net/10220/41944
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-847272023-03-04T17:15:46Z A jumping shape memory alloy under heat Yang, Shuiyuan Omori, Toshihiro Wang, Cuiping Liu, Yong Nagasako, Makoto Ruan, Jingjing Kainuma, Ryosuke Ishida, Kiyohito Liu, Xingjun School of Mechanical and Aerospace Engineering Materials science Phase transitions and critical phenomena Shape memory alloys are typical temperature-sensitive metallic functional materials due to superelasticity and shape recovery characteristics. The conventional shape memory effect involves the formation and deformation of thermally induced martensite and its reverse transformation. The shape recovery process usually takes place over a temperature range, showing relatively low temperature-sensitivity. Here we report novel Cu-Al-Fe-Mn shape memory alloys. Their stress-strain and shape recovery behaviors are clearly different from the conventional shape memory alloys. In this study, although the Cu-12.2Al-4.3Fe-6.6Mn and Cu-12.9Al-3.8Fe-5.6Mn alloys possess predominantly L21 parent before deformation, the 2H martensite stress-induced from L21 parent could be retained after unloading. Furthermore, their shape recovery response is extremely temperature-sensitive, in which a giant residual strain of about 9% recovers instantly and completely during heating. At the same time, the phenomenon of the jumping of the sample occurs. It is originated from the instantaneous completion of the reverse transformation of the stabilized 2H martensite. This novel Cu-Al-Fe-Mn shape memory alloys have great potentials as new temperature-sensitive functional materials. Published version 2016-12-23T08:18:41Z 2019-12-06T15:50:22Z 2016-12-23T08:18:41Z 2019-12-06T15:50:22Z 2016 Journal Article Yang, S., Omori, T., Wang, C., Liu, Y., Nagasako, M., Ruan, J., et al. (2016). A jumping shape memory alloy under heat. Scientific Reports, 6, 21754-. 2045-2322 https://hdl.handle.net/10356/84727 http://hdl.handle.net/10220/41944 10.1038/srep21754 26880700 en Scientific Reports This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ 6 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Materials science
Phase transitions and critical phenomena
spellingShingle Materials science
Phase transitions and critical phenomena
Yang, Shuiyuan
Omori, Toshihiro
Wang, Cuiping
Liu, Yong
Nagasako, Makoto
Ruan, Jingjing
Kainuma, Ryosuke
Ishida, Kiyohito
Liu, Xingjun
A jumping shape memory alloy under heat
description Shape memory alloys are typical temperature-sensitive metallic functional materials due to superelasticity and shape recovery characteristics. The conventional shape memory effect involves the formation and deformation of thermally induced martensite and its reverse transformation. The shape recovery process usually takes place over a temperature range, showing relatively low temperature-sensitivity. Here we report novel Cu-Al-Fe-Mn shape memory alloys. Their stress-strain and shape recovery behaviors are clearly different from the conventional shape memory alloys. In this study, although the Cu-12.2Al-4.3Fe-6.6Mn and Cu-12.9Al-3.8Fe-5.6Mn alloys possess predominantly L21 parent before deformation, the 2H martensite stress-induced from L21 parent could be retained after unloading. Furthermore, their shape recovery response is extremely temperature-sensitive, in which a giant residual strain of about 9% recovers instantly and completely during heating. At the same time, the phenomenon of the jumping of the sample occurs. It is originated from the instantaneous completion of the reverse transformation of the stabilized 2H martensite. This novel Cu-Al-Fe-Mn shape memory alloys have great potentials as new temperature-sensitive functional materials.
author2 School of Mechanical and Aerospace Engineering
author_facet School of Mechanical and Aerospace Engineering
Yang, Shuiyuan
Omori, Toshihiro
Wang, Cuiping
Liu, Yong
Nagasako, Makoto
Ruan, Jingjing
Kainuma, Ryosuke
Ishida, Kiyohito
Liu, Xingjun
format Article
author Yang, Shuiyuan
Omori, Toshihiro
Wang, Cuiping
Liu, Yong
Nagasako, Makoto
Ruan, Jingjing
Kainuma, Ryosuke
Ishida, Kiyohito
Liu, Xingjun
author_sort Yang, Shuiyuan
title A jumping shape memory alloy under heat
title_short A jumping shape memory alloy under heat
title_full A jumping shape memory alloy under heat
title_fullStr A jumping shape memory alloy under heat
title_full_unstemmed A jumping shape memory alloy under heat
title_sort jumping shape memory alloy under heat
publishDate 2016
url https://hdl.handle.net/10356/84727
http://hdl.handle.net/10220/41944
_version_ 1759857134404632576