会议论文详细信息
4th International Conference on Advances in Solidification Processes | |
Applications of the directional solidification in magnetic shape memory alloys | |
材料科学;物理学 | |
Huang, Y.J.^1 ; Liu, J.^2 ; Hu, Q.D.^1 ; Liu, Q.H.^1 ; Karaman, I.^3,4 ; Li, J.G.^1 | |
School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai | |
200240, China^1 | |
Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Material Technology and Engineering, CAS, Ningbo | |
315201, China^2 | |
Department of Mechanical Engineering, Texas AandM University, College Station | |
TX | |
77843, United States^3 | |
Department of Material Science and Engineering, Texas AandM University, College Station | |
TX | |
77843, United States^4 | |
关键词: Columnar crystals; Growth velocity; High temperature gradient; Intersection angles; Liquid metal cooling; Loading direction; Magnetic shape memory alloys; Preferred orientations; | |
Others : https://iopscience.iop.org/article/10.1088/1757-899X/117/1/012029/pdf DOI : 10.1088/1757-899X/117/1/012029 |
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学科分类:材料科学(综合) | |
来源: IOP | |
【 摘 要 】
A zone melting liquid metal cooling (ZMLMC) method of directional solidification was applied to prepare highly-oriented Ni52Fe17Ga27Co4magnetic shape memory alloys. At high temperature gradient and low growth velocity, the well-developed preferred orientation for coarse columnar crystals was obtained. Such a structure leads to a large complete pseudoelastic recovery of 5% at 348 K. Moreover, the pseudoelastic behaviours and the kinetics of the martensitic transformation (MT) are significantly affected by the intersection angle between the loading direction and the grain boundaries.
【 预 览 】
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