Effect of small gamma precipitates on the two-way shape memory effect in a Cu-Zn-Al alloy

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	Effect of small gamma precipitates on the two-way shape memory effect in a Cu-Zn-Al alloy
	X. M. Zhang; M. Liu; J. Fernandez; J. M. Guilemany
	2000
发表期刊	Materials Characterization
ISSN	1044-5803
卷号	44 期号:4-5 页码:365-370
摘要	After the treatment for the Stabilization of Stress-Induced Martensite (SSIM) in Cu-Zn-Al alloys, it was found that the small gamma precipitates in the beta austenite are ellipsoidal with a large strain field oriented in the same direction, while in the martensite, the gamma precipitates changed their shape from ellipsoidal to spheroidal, which relaxed the strain field. To check whether the strain field of the gamma precipitates is available to produce thermoelastic martensitic transformation, in situ observations with a heating sample holder in TME were performed. It was found that after heating above the A(s) temperature, the spherical gamma precipitates in the martensite recovered their strain field and elliptical shape. During cooling, the strain field of the gamma precipitates disappeared again. This means that the strain fields of the gamma precipitates trained by the SSIM method play an important part in the thermoelastic martensitic transformation that presents the two-way shape memory effect. (C) Elsevier Science Inc., 2000. All rights reserved.
部门归属	univ barcelona, e-08028 barcelona, spain. cas, inst met res, atom imaging solids lab, shenyang 110015, peoples r china.;zhang, xm (reprint author), univ barcelona, e-08028 barcelona, spain
关键词	Stress-induced Martensite Oriented Growth Transformation Behavior
URL	查看原文
WOS记录号	WOS:000089285500003
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/37257
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. M. Zhang,M. Liu,J. Fernandez,et al. Effect of small gamma precipitates on the two-way shape memory effect in a Cu-Zn-Al alloy[J]. Materials Characterization,2000,44(4-5):365-370.
APA	X. M. Zhang,M. Liu,J. Fernandez,&J. M. Guilemany.(2000).Effect of small gamma precipitates on the two-way shape memory effect in a Cu-Zn-Al alloy.Materials Characterization,44(4-5),365-370.
MLA	X. M. Zhang,et al."Effect of small gamma precipitates on the two-way shape memory effect in a Cu-Zn-Al alloy".Materials Characterization 44.4-5(2000):365-370.