Behavior and Preparation of Single Crystal of Cu-Al-Ni-Be SMA

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In this paper, single crystal of CuAlNiBe shape memory alloy (SMA) was prepared in a high temperature gradient directional solidification furnace with a selective growing crystallizer. And its performance characters were systematically studied. The results show that the mechanical and shape memory properties of the single crystal of CuAlNiBe SMA alloy has much better than that of the polycrystalline material. This may be explained that the stress concentration at grain boundary caused by the difference of bilateral strains is the dominant reason of deterioration of fatigue properties; therefore single crystal alloy possesses the excellent properties duo to its elimination of grain boundary.

Info:

Periodical:

Materials Science Forum (Volumes 561-565)

Main Theme:

Edited by:

Young Won Chang, Nack J. Kim and Chong Soo Lee

Pages:

1463-1466

DOI:

10.4028/www.scientific.net/MSF.561-565.1463

Citation:

H. P. Xu et al., "Behavior and Preparation of Single Crystal of Cu-Al-Ni-Be SMA", Materials Science Forum, Vols. 561-565, pp. 1463-1466, 2007

Online since:

October 2007

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Price:

$35.00

[1] W. G. Li, X. C. Chen, Y. Q. Yu, D. F. Wang: Functional Materials. Vol. 34 (2003), p.6.

[2] H. L. Wang, J. Zhou, Z. Y. Zhu: Materials for Mechanical Engineering, Vol. 29(2005), p.54.

[3] Z. X. Li, S. W. Guo, and F. L. Duan: Journal of Functional Materials, Vol. 14(1993), p.261.

[4] Motoyasu, Mkaneko, H. Soda, A. McLean: Metallurgical and Materials Transactions A, Vol. 32A(2001), p.68.

[5] T. Tadaki, in: Shape Memory Materials, edited by Cambridge University, Britain, (1998), in press.

[6] H. B. Ba, Q. F. Chen: Journal of Liaoning Institute of Technology, Vol. 24(2004), p.51.

[7] G. F. Song,Study on Single Crystal of Cu-Al-Ni-Be Shape Memory Alloy and its Properties.

[8] H. Tobushi, Y. Shimeno, T. Hachisuka, and K. Tanaka: Mech. Maters. Vol. 30(1998), P. 141.

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