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Yu Q, Wang J, Liang C, Meng J, Xu J, Liu Y, Zhao S, Xi X, Xi C, Yang M, Si C, He Y, Wang D, Jiang C. A Giant Magneto-Superelasticity of 5% Enabled by Introducing Ordered Dislocations in Ni 34Co 8Cu 8Mn 36Ga 14 Single Crystal. Adv Sci (Weinh) 2024:e2401234. [PMID: 38654685 DOI: 10.1002/advs.202401234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 04/14/2024] [Indexed: 04/26/2024]
Abstract
Elasticity, featured by a recoverable strain, refers to the ability that materials can return to their original shapes after deformation. Typically, the elastic strains of most metals are well-known 0.2%. In shape memory alloys and high entropy alloys, the elastic strains can be several percent, as called superelasticity, which are all triggered by external stresses. A superelasticity induced by magnetic field, termed as magneto-superelasticity, is extremely important for contactless work of materials and for developing brand-new large stroke actuators and high efficiency energy transducers. In magnetic shape memory alloys, the twin boundary motion driven by magnetic field can output a strain of several percent. However, this strain is unrecoverable when removing the magnetic field and hence it is not magneto-superelasticity. Here, a giant magneto-superelasticity of 5% in a Ni34Co8Cu8Mn36Ga14 single crystal is reported by introducing arrays of ordered dislocations to form preferentially oriented martensitic variants during the magnetically induced reverse martensitic transformation. This work provides an opportunity to achieve high performance in functional materials by defect engineering.
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Affiliation(s)
- Qijia Yu
- School of Materials Science and Engineering, Key Laboratory of Advanced Aerospace Materials and Performance (Ministry of Education), Beihang University, Beijing, 100191, P. R. China
| | - Jingmin Wang
- School of Materials Science and Engineering, Key Laboratory of Advanced Aerospace Materials and Performance (Ministry of Education), Beihang University, Beijing, 100191, P. R. China
| | - Chuanxin Liang
- Center of Microstructure Science, Frontier Institute of Science and Technology, State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
| | - Jiaxi Meng
- School of Materials Science and Engineering, Key Laboratory of Advanced Aerospace Materials and Performance (Ministry of Education), Beihang University, Beijing, 100191, P. R. China
| | - Jinyue Xu
- School of Materials Science and Engineering, Key Laboratory of Advanced Aerospace Materials and Performance (Ministry of Education), Beihang University, Beijing, 100191, P. R. China
| | - Yang Liu
- School of Materials Science and Engineering, Key Laboratory of Advanced Aerospace Materials and Performance (Ministry of Education), Beihang University, Beijing, 100191, P. R. China
| | - Shiteng Zhao
- School of Materials Science and Engineering, Key Laboratory of Advanced Aerospace Materials and Performance (Ministry of Education), Beihang University, Beijing, 100191, P. R. China
| | - Xuekui Xi
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Chuanying Xi
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Science, Hefei, Anhui, 230031, P. R. China
| | - Ming Yang
- National High Magnetic Field Center and School of Physics, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Chen Si
- School of Materials Science and Engineering, Key Laboratory of Advanced Aerospace Materials and Performance (Ministry of Education), Beihang University, Beijing, 100191, P. R. China
| | - Yangkun He
- School of Materials Science and Engineering, Key Laboratory of Advanced Aerospace Materials and Performance (Ministry of Education), Beihang University, Beijing, 100191, P. R. China
| | - Dong Wang
- Center of Microstructure Science, Frontier Institute of Science and Technology, State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
| | - Chengbao Jiang
- School of Materials Science and Engineering, Key Laboratory of Advanced Aerospace Materials and Performance (Ministry of Education), Beihang University, Beijing, 100191, P. R. China
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