Crystal orientation in Ni–Mn–In melt-spun ribbons
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The crystal orientation of Ni50Mn25In25 and Ni50Mn34In16 melt-spun ribbons which appears parent phase at room temperature was investigated in this paper. The grains grow perpendicular to the surface of the ribbon and show columnar crystals distinctly. X-ray diffraction and electron backscattered diffraction were used to identify the orientation information of the ribbons. It is indicated that the well-developed preferred orientation of these columnar crystals is parallel to <001> direction, and this is in accordance with that in other shape memory ribbons, which was named as Eucken–Hirsch texture. This kind of texture predicts that it is beneficial to the magnetic field-induced strain compared with the common polycrystals. The results obtained in this paper provide reference for the preparation of Ni–Mn–In melt-spun ribbons.
KeywordsShape memory alloys Texture Rapid solidification Microstructure Electron backscattered diffraction (EBSD)
This work is financially supported by the National Natural Science Foundation of China (Nos. 51301134 and 51401122).
- O’Handley RC. Model for strain and magnetization in magnetic shape-memory alloys. J Appl Phys. 1998;83(6):367094.Google Scholar
- Schlagel DL, Wu YL, Zhang W, Lograsso TA. Chemical segregation during bulk single crystal preparation of Ni–Mn–Ga ferromagnetic shape memory alloys. J Alloy Compd. 2000;312(1–2):1016.Google Scholar
- Liang T, Jiang CB, Xu HB, Liu ZH, Zhang M, Cui YT, Wu GH. Phase transition strain and large magnetic field induced strain in Ni50.5Mn24Ga25.5 unidirectionally solidified alloy. J Magn Magn Mater. 2004;268((1–2)):1016.Google Scholar
- Hernando B, Sánchez Llamazares JL, Santos JD, Sánchez ML, Escoda Ll, Suñol JJ, Varga R, García C, González J. Grain oriented NiMnSn and NiMnIn Heusler alloys ribbons produced by melt spinning: martensitic transformation and magnetic properties. J Magn Magn Mater. 2009;321(7):763.CrossRefGoogle Scholar