Characteristics of two-way shape memory TiNi springs driven by electrical current
Wang, ZG; Zu, XT; Feng, XD; Zhu, S; Bao, JW; Wang, LM
Corresponding AuthorZu, XT()
Source PublicationMATERIALS & DESIGN
AbstractThe electrothermal driving characteristics of the two-way shape memory effect (TWSME) extension TiNi springs, which can extend upon heating and contract upon cooling, were investigated with alternating and direct current. It was found that the response time (the time interval between the start and the end of the spring's shape change) and the maximum elongation greatly depend on the magnitude of the electrical current. The response time was large for a small electrical current and small for a high one. The maximum elongation increased to a maximum value with increasing Current first and then decreased. For practical applications, electrothermal driving working cycles cannot be avoided in repeated use. So the degradation of the TWSME was also investigated by repeated application of the effect. There was a rather strong decay during the first electrothermal cycling. In the latter stage the degradation rate was small. (C) 2004 Elsevier Ltd. All rights reserved.
Keywordintermetallics shape memory alloy spring electrothermal response time maximum elongation
Indexed BySCI
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000223966700007
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Document Type期刊论文
Corresponding AuthorZu, XT
Affiliation1.Univ Elect Sci & Technol China, Dept Appl Phys, Chengdu 610054, Peoples R China
2.Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China
3.Sichuan Univ, Dept Phys, Chengdu 610064, Peoples R China
4.Univ Michigan, Dept Nucl Engn & Radiol Sci, Ann Arbor, MI 48109 USA
Recommended Citation
GB/T 7714
Wang, ZG,Zu, XT,Feng, XD,et al. Characteristics of two-way shape memory TiNi springs driven by electrical current[J]. MATERIALS & DESIGN,2004,25(8):699-703.
APA Wang, ZG,Zu, XT,Feng, XD,Zhu, S,Bao, JW,&Wang, LM.(2004).Characteristics of two-way shape memory TiNi springs driven by electrical current.MATERIALS & DESIGN,25(8),699-703.
MLA Wang, ZG,et al."Characteristics of two-way shape memory TiNi springs driven by electrical current".MATERIALS & DESIGN 25.8(2004):699-703.
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