Metastable effects on martensitic transformation in SMA Part IX. Static aging for morphing by temperature and stress

The NiTi SMA was studied by temperature (mainly at 373 K) and by stress–temperature aging. The temperature induces monotonic changes in Rs transformation temperature near 10–20 K/year. The simultaneous stress/temperature aging produced strong changes in the stress–strain cycles and in the necessary...

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Bibliographic Details
Published inJournal of thermal analysis and calorimetry Vol. 112; no. 2; pp. 777 - 780
Main Authors Torra, V., Auguet, C., Isalgue, A., Carreras, G., Lovey, F. C.
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Netherlands 01.05.2013
Springer
Subjects
Actuators
Analytical Chemistry
Chemistry
Chemistry and Materials Science
Cross-disciplinary physics: materials science; rheology
Exact sciences and technology
Inorganic Chemistry
Martensitic transformations
Materials science
Measurement Science and Instrumentation
Phase diagrams and microstructures developed by solidification and solid-solid phase transformations
Physical Chemistry
Physics
Polymer Sciences
Shape-memory alloys
Aging
Martensitic transformation
Morphing
Metastable effects
SMA
Nickel alloys
Martensitic transformations
Stress strain
Operating conditions
Binary alloys
Titanium alloys
Shape memory alloy
Temperature effects
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Summary:The NiTi SMA was studied by temperature (mainly at 373 K) and by stress–temperature aging. The temperature induces monotonic changes in Rs transformation temperature near 10–20 K/year. The simultaneous stress/temperature aging produced strong changes in the stress–strain cycles and in the necessary stress to continue transforming with an increase of maximal stress near 45 MPa/month at 373 K.
ISSN:1388-6150
1588-2926
1572-8943
DOI:10.1007/s10973-012-2585-y