An experimental evaluation of the microstructure, mechanical and functional fatigue properties of the boron-doped Cu-Al-Be SMA wires
| Autor: | Subhaschandra Kattimani, Ratnesh Kumar Singh, Pranay Biswas, S. M. Murigendrappa |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
inorganic chemicals
Materials science Mechanical Engineering Hysteresis Doping Cu-based SMA wire chemistry.chemical_element SMA Microstructure Phase transformation Functional fatigue chemistry Wire drawing Mechanics of Materials Constant stress Phase (matter) Boron doping Ultimate tensile strength TA401-492 General Materials Science Composite material Boron Materials of engineering and construction. Mechanics of materials |
| Zdroj: | Materials & Design, Vol 210, Iss, Pp 110081-(2021) |
| ISSN: | 0264-1275 |
| Popis: | An experimental evaluation of the microstructure, mechanical and functional fatigue properties of the Cu-11.70Al-0.45Be doped with Bx (x = 0.05, 0.10, 0.12, and 0.14 wt%) SMA wires has been carried out. The experiments were performed to investigate microstructure, phase/precipitates, and transformation temperatures for both as-cast and wire samples. Furthermore, tensile properties, shape recovery ratio, and functional fatigue evaluation have also been carried out for the wire samples. The investigation shows that the addition of the minor amount of boron and secondary processes involved during the specimen preparation induced excellent grain refinement. The addition of boron decreased transformation temperatures; however, there was not a considerable change observed due to the secondary process. It was observed that tensile properties increases with the boron addition, and complete shape recovery was observed for all the selected alloys. Finally, functional fatigue tests were conducted under constant stress condition and observed that the number of cycles until the failure has increased and more distance recovery was achieved with an increase in boron doping. |
| Databáze: | OpenAIRE |
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