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
	2012
发表期刊	Journal of Magnetism and Magnetic Materials
ISSN	0304-8853
卷号	324 期号:5 页码:853-856
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.
部门归属	[zhang, yansheng; tian, xing; qin, zuoxiang] dalian jiaotong univ, coll mat sci & engn, dalian 116028, peoples r china. [jiang, haichang] chinese acad sci, inst met res, shenyang 110016, peoples r china.;tian, x (reprint author), dalian jiaotong univ, coll mat sci & engn, dalian 116028, peoples r china.;xtian_100@yahoo.cn
关键词	Fe-mn-si Alloy Elinvar Character Antiferromagnetic Order Exchange Energy Neel Transition Ge Alloys
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60466
专题	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.