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- Title
Microstructures and Phase Transformations of Melt-Spun Ti-V-Al high Temperature Shape Memory Alloys with Addition of Zr .
- Authors
BAĞ, Öznur; YILMAZ, Fikret; KÖLEMEN, Uğur; ERGEN, Semra
- Abstract
In this study, the effects of Zr addition on phase transformation temperatures, microstructure of Ti-12V-4Al (wt. %) high temperature shape memory alloys (HTSMAs) manufactured using melt-spinning technique were investigated. During heating, differential scanning calorimetry (DSC) curves showed that austenite transformation temperature of Ti-12V-4Al (wt. %) melt- spun ribbon was single-stage transformation and Ti-12V-4Al-0.5Zr (wt. %) melt-spun ribbon was two-stage transformation. In the scanning electron microscopy (SEM) and X-ray diffraction (XRD) analyzes, unveiled that the melt-spun ribbons consisted of martensite, austenite and R phases. Transmission electron microscopy (TEM) analysis showed that the thickness of martensite plates in ribbons was thinned by the addition of Zr.
- Subjects
SHAPE memory alloys; PHASE transitions; HIGH temperatures; MICROSTRUCTURE; DIFFERENTIAL scanning calorimetry
- Publication
Sakarya University Journal of Science (SAUJS) / Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2021, Vol 25, Issue 3, p735
- ISSN
1301-4048
- Publication type
Article
- DOI
10.16984/saufenbilder.797337