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Microstructure and Superelasticity of Cu-Sn Shape-Memory Microwires by Glass-Coated Melt Spinning
Version 1
: Received: 19 July 2023 / Approved: 19 July 2023 / Online: 20 July 2023 (05:01:29 CEST)
A peer-reviewed article of this Preprint also exists.
Zhao, Y.; Bai, Y.; Li, T.; Zhang, Y. Microstructure and Superelasticity of Cu–Sn Shape-Memory Microwires by Glass-Coated Melt Spinning. Metals 2023, 13, 1852. Zhao, Y.; Bai, Y.; Li, T.; Zhang, Y. Microstructure and Superelasticity of Cu–Sn Shape-Memory Microwires by Glass-Coated Melt Spinning. Metals 2023, 13, 1852.
Abstract
Cu-Sn shape-memory microwires were fabricated by a glass-coated melt spinning method. Effects of Sn content on the microstructure and mechanical property of microwires were investigated. The phase transforms from martensite to austenite with Sn content increasing from 14.0 atomic percent (at.%) to 16.5 at.%, and highly ordered intermetallic phase, δ, formed with higher Sn content. The fracture stress, σf, and the critical stress for martensitic transformation, σMs, increases with Sn content increasing. The mechanical property as well as superelasticity were improved greatly by high cooling rate of the glass-coated melt spinning method.
Keywords
shape memory alloy; glass-coated microwire; Cu-Sn alloy; superelastic effect; bamboo-like grained structure
Subject
Chemistry and Materials Science, Metals, Alloys and Metallurgy
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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