The Solid-Liquid Interface Morphology of the Unidirectionally Solidified Ni2MnGa Magnetic Shape Memory Alloy

Acta Metall Sin

2004, Vol. 40

Issue (9): 975-980 DOI:

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The Solid-Liquid Interface Morphology of the Unidirectionally Solidified Ni2MnGa Magnetic Shape Memory Alloy

JIANG Chengbao; LIU Jinghua; ZHANG Tao; XU Huibin

School of Materials Science and Engineering; Beijing University of Aeronautics and Astronautics; Beijing 100083

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JIANG Chengbao; LIU Jinghua; ZHANG Tao; XU Huibin. The Solid-Liquid Interface Morphology of the Unidirectionally Solidified Ni2MnGa Magnetic Shape Memory Alloy. Acta Metall Sin, 2004, 40(9): 975-980 .

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Abstract The crystals of Ni2MnGa were prepared by high temperature gradient zone-melting unidirectional solidification. Through altering the growth velocity, the temperature gradient and the zone-melting length, a flat solid-liquid interface can be obtained, and a single crystal was successfully prepared. The crystal growth competition was observed in Ni50Mn29Ga21 alloy. No obvious composition macro-segregation was detected. In X-ray diffraction pattern only 400 and 004 peaks of the tetragonal martensitic structure appear, showing the preferred orientation along <100> of the high-temperature cubic austenite Ni2MnGa. DSC and TG methods were applied to describe the distributions of the martensitic transition temperature and Curie temperature along the solidified axis of the Ni50Mn29Ga21, no obvious change for Curie temperature and about 10℃ increase for the martensitic transition temperature were observed, further indicating the homogeneity of the composition along the growth axis.

Key words: Ni2MnGa crystal growth unidirectional solidification

Received: 28 December 2003

ZTFLH:	TG111.4
	TG113.12

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	JIANG Chengbao
	LIU Jinghua
	ZHANG Tao
	XU Huibin

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y2004/V40/I9/975

[1] O'Handley R C. Appl Phys, 1998; 83: 3263
[2] Wu G H, Yu C H, Meng L Q, Chen J L, Yang F M, Qi S R, Zhan W S, Wang Z, Zheng Y F, Zhao L C. Appl PhysLett, 1999; 75: 2990
[3] Jiang C B, Liang T, Xu H B, Zhang M, Wu G H. ApplPhys Lett, 2002; 81: 1818
[4] Murray S J, Marioni M, Allen S M, O'Handley R C. ApplPhys Lett, 2000; 77: 886
[5] Sozinov A, Likhachev A A, Lanska N, Ullakko K. ApplPhys Lett, 2002; 80: 1746
[6] Schlagel D L, Wu Y L, Zhang W, Lograsso T A. J AlloysCompds, 2000; 312: 77
[7] Pons J, Chernenko V A, Sautamarta R, Cesari E. ActaMater, 2000; 48: 3027
[8] Jiang C B, Feng G, Xu H B. Appl Phys Lett, 2002; 80:1619
[9] Albertini F, Pareti L, Paoluzi A, Morellon L, Algarabel PA, Ibarra M R, Righi L. Appl Phys Lett, 2002; 81: 4032
[10] Straka L, Heczko O, Lanska N. IEEE Trans Magn, 2002;38: 2835
[11] Jiang C B, Muhammad Y, Deng L F, Wu W, Xu H B.Acta Mater, 2004; 52: 2779

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