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EnglishDifferential scanning calorimetry and electrical resistance measurements are the two most common techniques for the study of the phase transition path and temperatures of shape memory alloys (SMA) in stressfree condition. Besides, it is well known that internal friction measurements are also useful for this purpose. There are indeed some further techniques which are seldom used for the basic characterization of SMA transition: dilatometric analysis, magnetic measurements, and Seebeck coefficient study. In this work, we discuss the attitude of these techniques for the study of NiTi-based phase transition. Measurements were conducted on several fully annealed Ni502xTi50Cux samples ranging from 3 to 10 at.% in Cu content, fully annealed at 850 C for 1 h in vacuum and quenched in water at room temperature. Results show that all these techniques are sensitive to phase transition, and they provide significant information about the existence of intermediate phases.
Non-Conventional Techniques for the Study of Phase Transitions in NiTi-Based Alloys / Adelaide Nespoli; Elena Villa; Francesca Passaretti; Franca Albertini; Riccardo Cabassi; Pasquale M; Carlo Paolo Sasso; Marco Coısson. - In: JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE. - ISSN 1059-9495. - (2014).
| Titolo: | Non-Conventional Techniques for the Study of Phase Transitions in NiTi-Based Alloys | |
| Autori: | ||
| Data di pubblicazione: | 2014 | |
| Rivista: | ||
| Citazione: | Non-Conventional Techniques for the Study of Phase Transitions in NiTi-Based Alloys / Adelaide Nespoli; Elena Villa; Francesca Passaretti; Franca Albertini; Riccardo Cabassi; Pasquale M; Carlo Paolo Sasso; Marco Coısson. - In: JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE. - ISSN 1059-9495. - (2014). | |
| Abstract: | Differential scanning calorimetry and electrical resistance measurements are the two most common techniques for the study of the phase transition path and temperatures of shape memory alloys (SMA) in stressfree condition. Besides, it is well known that internal friction measurements are also useful for this purpose. There are indeed some further techniques which are seldom used for the basic characterization of SMA transition: dilatometric analysis, magnetic measurements, and Seebeck coefficient study. In this work, we discuss the attitude of these techniques for the study of NiTi-based phase transition. Measurements were conducted on several fully annealed Ni502xTi50Cux samples ranging from 3 to 10 at.% in Cu content, fully annealed at 850 C for 1 h in vacuum and quenched in water at room temperature. Results show that all these techniques are sensitive to phase transition, and they provide significant information about the existence of intermediate phases. | |
| Handle: | http://hdl.handle.net/11696/30486 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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