An experimental evaluation of the microstructure, mechanical and functional fatigue properties of the boron-doped Cu-Al-Be SMA wires
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 transformat...
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doaj-92169eca3f0e40c49718d796d9f015972021-09-03T04:43:39ZengElsevierMaterials & Design0264-12752021-11-01210110081An experimental evaluation of the microstructure, mechanical and functional fatigue properties of the boron-doped Cu-Al-Be SMA wiresRatnesh Kumar Singh0Pranay Biswas1S.M. Murigendrappa2S Kattimani3Department of Mechanical Engineering, National Institute of Technology Karnataka, Surathkal, Mangalore 575025, IndiaDepartment of Mechanical Engineering, National Institute of Technology Karnataka, Surathkal, Mangalore 575025, IndiaCorresponding author.; Department of Mechanical Engineering, National Institute of Technology Karnataka, Surathkal, Mangalore 575025, IndiaDepartment of Mechanical Engineering, National Institute of Technology Karnataka, Surathkal, Mangalore 575025, IndiaAn 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.http://www.sciencedirect.com/science/article/pii/S0264127521006365Cu-based SMA wireWire drawingMicrostructurePhase transformationFunctional fatigueHysteresis |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ratnesh Kumar Singh Pranay Biswas S.M. Murigendrappa S Kattimani |
spellingShingle |
Ratnesh Kumar Singh Pranay Biswas S.M. Murigendrappa S Kattimani An experimental evaluation of the microstructure, mechanical and functional fatigue properties of the boron-doped Cu-Al-Be SMA wires Materials & Design Cu-based SMA wire Wire drawing Microstructure Phase transformation Functional fatigue Hysteresis |
author_facet |
Ratnesh Kumar Singh Pranay Biswas S.M. Murigendrappa S Kattimani |
author_sort |
Ratnesh Kumar Singh |
title |
An experimental evaluation of the microstructure, mechanical and functional fatigue properties of the boron-doped Cu-Al-Be SMA wires |
title_short |
An experimental evaluation of the microstructure, mechanical and functional fatigue properties of the boron-doped Cu-Al-Be SMA wires |
title_full |
An experimental evaluation of the microstructure, mechanical and functional fatigue properties of the boron-doped Cu-Al-Be SMA wires |
title_fullStr |
An experimental evaluation of the microstructure, mechanical and functional fatigue properties of the boron-doped Cu-Al-Be SMA wires |
title_full_unstemmed |
An experimental evaluation of the microstructure, mechanical and functional fatigue properties of the boron-doped Cu-Al-Be SMA wires |
title_sort |
experimental evaluation of the microstructure, mechanical and functional fatigue properties of the boron-doped cu-al-be sma wires |
publisher |
Elsevier |
series |
Materials & Design |
issn |
0264-1275 |
publishDate |
2021-11-01 |
description |
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. |
topic |
Cu-based SMA wire Wire drawing Microstructure Phase transformation Functional fatigue Hysteresis |
url |
http://www.sciencedirect.com/science/article/pii/S0264127521006365 |
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