Temperature compensating Elinvar character in Fe-Mn-Si alloys

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	Temperature compensating Elinvar character in Fe-Mn-Si alloys
	Y. S. Zhang ; X. Tian ; Z. X. Qin ; H. C. Jiang
刊名	Journal of Magnetism and Magnetic Materials
	2012
卷号	324 期号:5 页码:853-856
关键词	Fe-Mn-Si alloy Elinvar character Antiferromagnetic order Exchange energy neel transition ge alloys
ISSN号	0304-8853
中文摘要	Young's modulus-temperature and thermal expansion curves were measured in gamma-Fe-31Mn-(0.25-8.67) Si-0.77C (at%) alloys by dynamic audio resonance method and in a light dilatometer. The results show that the anomalies in Young's modulus and thermal expansion appear near the Neel temperature. The temperature coefficient of Young's modulus, (1/E(p))(dE(p)/dT), is controlled by Si content below the Neel temperature. When Si content increases to 5.31 at%, (1/E(p))(dE(p)/dT) is close to zero in temperature range from 260 to 335 K, i.e. the Fe-31Mn-5.31Si-0.67C (at%) alloy shows Elinvar character. The temperature range in which the Elinvar character appears is wider than that of gamma-Fe-Mn Elinvar alloys. The change in exchange energy and the Delta E effect result from the effect of Si on the antiferromagnetic behavior in gamma-Fe-Mn alloys since it induces or enhances localized magnetic moment. When the increase in normal Young's modulus due to lowering temperature is compensated by the Delta E effect caused by the antiferromagnetic ordering, Elinvar character appears. (C) 2011 Elsevier B.V. All rights reserved.
原文出处	://WOS:000297213000033
公开日期	2013-02-05
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/60466]
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	Y. S. Zhang,X. Tian,Z. X. Qin,et al. Temperature compensating Elinvar character in Fe-Mn-Si alloys[J]. Journal of Magnetism and Magnetic Materials,2012,324(5):853-856.
APA	Y. S. Zhang,X. Tian,Z. X. Qin,&H. C. Jiang.(2012).Temperature compensating Elinvar character in Fe-Mn-Si alloys.Journal of Magnetism and Magnetic Materials,324(5),853-856.
MLA	Y. S. Zhang,et al."Temperature compensating Elinvar character in Fe-Mn-Si alloys".Journal of Magnetism and Magnetic Materials 324.5(2012):853-856.