A one-cycle training technique for copper-based shape memory alloys

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	A one-cycle training technique for copper-based shape memory alloys
	J. Fernandez ; X. M. Zhang ; J. M. Guilemany
刊名	Journal of Materials Processing Technology
	2003
卷号	139 期号:1-3 页码:117-119
关键词	shape memory alloy Cu-based alloy two-way shape memory effect training method precipitation stress-induced martensite zn-al alloys
ISSN号	0924-0136
中文摘要	Shape memory alloys have been used in the industrial and medical fields due to their shape memory effect (SME), pseudoelasticity and two-way shape memory effect (TWSME). With TWSME, the shape memory alloy (SMA) can changes its shape during heating and recover its shape during cooling. This recoverable property can be thermally cycled over 10(5) times, but TWSME is not an intrinsic property of shape memory alloys: it should be trained by multiple thermomechanical cycling. The present authors have developed a one-cycle training technique to obtain TWSME for Cu-based alloys. This method is usually called the stabilized stress-induced martensite (SSIM) training method. With the SSIM training in Cu-based alloys, many small gamma precipitates were induced with a large strain field oriented in a same direction in the austenite. It was considered that these oriented gamma precipitates in the austenite contribute their strain field to thermoclastic martensite transformation during cooling. When the alloy is heated again, during reverse transformation the strain field around the gamma precipitates can be recovered again. In this way, with only one-cycle training, the Cu-based SMA can obtain TWSME. (C) 2003 Elsevier Science B.V. All rights reserved.
原文出处	://WOS:000184438800019
公开日期	2012-04-14
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/35829]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	J. Fernandez,X. M. Zhang,J. M. Guilemany. A one-cycle training technique for copper-based shape memory alloys[J]. Journal of Materials Processing Technology,2003,139(1-3):117-119.
APA	J. Fernandez,X. M. Zhang,&J. M. Guilemany.(2003).A one-cycle training technique for copper-based shape memory alloys.Journal of Materials Processing Technology,139(1-3),117-119.
MLA	J. Fernandez,et al."A one-cycle training technique for copper-based shape memory alloys".Journal of Materials Processing Technology 139.1-3(2003):117-119.