Influence of static stress on damping behavior in Fe-15Cr and Fe-8Al ferromagnetic alloys

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	Influence of static stress on damping behavior in Fe-15Cr and Fe-8Al ferromagnetic alloys
	X. F. Hu; S. W. Liu; X. Y. Li; B. Zhang; L. J. Rong; F. X. Yin; Y. Y. Li
	2011
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	528 期号:16-17 页码:5491-5495
摘要	Effect of static stress on magnetomechanical damping of Fe-15Cr and Fe-8Al (wt.%) alloys has been investigated by using dynamic mechanical analyzer (DMA) with three-point bending model. The temperature sweeping is used to measure the damping capacity and the variation of damping capacity with strain amplitude under different static stresses is deduced through a matrix method. The result shows that three-point bending model is capable for measuring magnetomechanical damping capacity with reliable results. Under no static stress condition, the deduced damping curve is fitted well with Smith and Birchak (S-B) model at low strain amplitude. However, the deduced damping capacity is higher than the value predicted by S-B model at high strain amplitude. With increasing static stress, the deduced damping capacity decreases significantly and becomes strain amplitude-independent. Compared with S-B model, the deduced damping capacity under applied stress is obviously higher which can be associated with the dislocation damping generated by unpinning dislocations as the static stress increases. (C) 2011 Elsevier B.V. All rights reserved.
部门归属	[hu, x. f.; liu, s. w.; li, x. y.; zhang, b.; rong, l. j.; li, y. y.] chinese acad sci, inst met res, shenyang 110016, peoples r china. [yin, f. x.] natl inst mat sci, tsukuba, ibaraki 3050047, japan.;li, xy (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china;xyli@imr.ac.cn
关键词	Magnetomechanical Damping Three-point Bending Static Stress Fe-15cr Alloy Dynamic Mechanical Analyzer Al Based Alloys Fe-13cr-2.5mo Alloy Alpha-fe Capacity Cr Metals Iron
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WOS记录号	WOS:000291373600024
引用统计	被引频次：15[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/321006/30400
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. F. Hu,S. W. Liu,X. Y. Li,et al. Influence of static stress on damping behavior in Fe-15Cr and Fe-8Al ferromagnetic alloys[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2011,528(16-17):5491-5495.
APA	X. F. Hu.,S. W. Liu.,X. Y. Li.,B. Zhang.,L. J. Rong.,...&Y. Y. Li.(2011).Influence of static stress on damping behavior in Fe-15Cr and Fe-8Al ferromagnetic alloys.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,528(16-17),5491-5495.
MLA	X. F. Hu,et al."Influence of static stress on damping behavior in Fe-15Cr and Fe-8Al ferromagnetic alloys".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 528.16-17(2011):5491-5495.