Superelasticity of Cu-Ni-Al shape-memory fibers prepared by melt extraction technique

Dong-yue Li; Shu-ling Zhang; Wei-bing Liao; Gui-hong Geng; Yong Zhang

doi:10.1007/s12613-016-1308-y

Volume 23 Issue 8

Aug. 2016

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文章导航 > 矿物冶金与材料学报（英文） > 2016 > 23(8): 928-933

Dong-yue Li, Shu-ling Zhang, Wei-bing Liao, Gui-hong Geng, and Yong Zhang, Superelasticity of Cu-Ni-Al shape-memory fibers prepared by melt extraction technique, Int. J. Miner. Metall. Mater., 23(2016), No. 8, pp. 928-933. https://doi.org/10.1007/s12613-016-1308-y

Cite this article as:

Dong-yue Li, Shu-ling Zhang, Wei-bing Liao, Gui-hong Geng, and Yong Zhang, Superelasticity of Cu-Ni-Al shape-memory fibers prepared by melt extraction technique, Int. J. Miner. Metall. Mater., 23(2016), No. 8, pp. 928-933. https://doi.org/10.1007/s12613-016-1308-y

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Superelasticity of Cu-Ni-Al shape-memory fibers prepared by melt extraction technique

State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing, 100083, China
School of Mechanical Engineering, Ningxia University, Yinchuan, 750021, China
School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen, 518055, China
School of Materials Science and Engineering, Beifang University of Nationalities, Ningxia, 750021, China

通讯作者:
Yong Zhang E-mail: drzhangy@ustb.edu.cn

中文摘要

In the paper, a melt extraction method was used to fabricate Cu–4Ni–14Al (wt%) fiber materials with diameters between 50 and 200 μm. The fibers exhibited superelasticity and temperature-induced martensitic transformation. The microstructures and superelasticity behavior of the fibers were studied via scanning electron microscopy (SEM) and a dynamic mechanical analyzer (DMA), respectively. Appropriate heat treatment further improves the plasticity of Cu-based alloys. The serration behavior observed during the loading process is due to the multiple martensite phase transformation.

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Superelasticity of Cu-Ni-Al shape-memory fibers prepared by melt extraction technique

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Abstract

Abstract

In the paper, a melt extraction method was used to fabricate Cu–4Ni–14Al (wt%) fiber materials with diameters between 50 and 200 μm. The fibers exhibited superelasticity and temperature-induced martensitic transformation. The microstructures and superelasticity behavior of the fibers were studied via scanning electron microscopy (SEM) and a dynamic mechanical analyzer (DMA), respectively. Appropriate heat treatment further improves the plasticity of Cu-based alloys. The serration behavior observed during the loading process is due to the multiple martensite phase transformation.
- copper nickel aluminum alloys;
- shape memory effect;
- melt extraction method;
- superelasticity