Abstract
In this study, the composition-dependent properties of a new type of NiTiCuW shape memory alloy were investigated. The martensite transformation temperature was measured by differential scanning calorimetry, crystal structure by XRD, microstructure analysis by microhardness measurement and scanning electron microscopy. The increase in Cu/W ratio in the composition decreased the transformation temperature below room temperature, and the alloys are in austenite phase at room temperature. X-ray results also supported the thermal measurement results. Moreover, a difference in the microhardness values of NiTiCuW alloys was observed, which exhibited martensite phase and austenite phase at room temperature.
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The data that support the findings of this study are available from the corresponding author upon reasonable request.
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Acknowledgments
This article is a part of the current Master thesis study of Alev Taze.
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This research study financial support provided by the Management Unit of the Scientific Research Projects of Firat University (FUBAP) (Project Number: FF.23.11).
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Cengiz Tatar: supervision, writing—review & editing. Alev TAZE, Mediha Kök: investigation, resources writing—original draft, visualization, writing—review & editing.
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Tatar, C., Taze, A. & Kök, M. Impact of Cu/W rate on thermal properties, crystal structure and microstructure of NiTiCuW shape memory alloys. MRS Communications (2024). https://doi.org/10.1557/s43579-024-00565-0
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DOI: https://doi.org/10.1557/s43579-024-00565-0