金属磁记忆效应的第一性原理计算与实验研究

杨理践; 刘斌; 高松巍; 陈立佳

doi:10.7498/aps.62.086201

摘要

为研究铁磁材料应力集中区域金属磁记忆信号的产生机理及其变化规律, 采用基于密度泛函理论的第一性原理平面波赝势法, 建立了磁记忆效应的磁力学模型; 计算分析了力与磁记忆自发漏磁信号的定量变化关系. 研究结果表明:力作用导致晶格畸变是磁记忆自发漏磁信号产生的根本原因; 常温下, 磁记忆信号随应力近似线性变化的规律与X70钢管水压爆破实验结果具有很好的一致性. 研究结果有助于金属磁记忆检测机理的研究.

关键词:

In order to investigate the mechanism and regular pattern of metal magnetic memory (MMM) signal, from the angle of electron spin, the magnetomechanical model of MMM is set up, and the relationship between stress concentration state and self magnetic flux leakage (SMFL) signal is calculated by the plane wave and pseudo-potential method based on the density functional theory. The research results show that the fundamental reason for SMFL is lattice distortion induced by loads, and the theoretical calculations are in very good agreement with the experimental observations. The present work is helpful for testing the mechanism of MMM.

Keywords:

作者及机构信息

1.
沈阳工业大学信息科学与工程学院, 沈阳 110870

基金项目: 国家自然科学基金专项基金(批准号:60927004)、国家自然科学基金(批准号:61141004)和国家科技支撑计划(批准号:2011BAK06B01-03)资助的课题.

Authors and contacts

1.
Institute of Information Science and Technology, Shenyang University of Technology, Shenyang 110870, China

Funds: Project supported by the Special Funds of the National Natural Science Foundation of China (Grant No. 60927004), the National Natural Science Foundation of China (Grant No. 61141004), and the National Key Technology Research and Development Program of the Ministry of Science and Technology of China (Grant No. 2011BAK06B01-03).

参考文献

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施引文献

[1]	Doubov A A 1997 Metal Science and Heat Treatment 39 401
[2]	Doubov A A 1998 Welding in the World 41 196
[3]	Doubov A A 2002 Welding in the World 46 317
[4]	Doubov A A, Demine A, Milvaev A I 2002 Welding in the World 46 29
[5]	Dong L H, Xu B S, Dong S Y, Chen Q Z, Wang Y Y, Zhang L 2005 J. Cent. South Univ. Technol. 12 102
[6]	Dubov A A 2011 Chem. Petrol. Engin. V47 837
[7]	Wang X, Chen M, Xu B S 2007 China Mech. Eng. 18 1862
[8]	Jiles D C 1999 J. Phys. D:Appl. Phys. 32 1945
[9]	Goodman J B, Le Veque R J 1985 Math. Comput. 45 15
[10]	Wan Q, Li S Z 2011 Nondestructive Testing 33 12 (in Chinese) [万强, 李斯忠 2011 无损检测 33 12]
[11]	Wang Z X, Zhang W M, Liu H G 2008 Front. Mech. Eng. China 3 222
[12]	Hu F X, Shen B G, Chen J C, Guo H Q 1991 Acta Phys. Sin. 40 2006 (in Chinese) [胡凤霞, 沈宝根, 陈金昌, 郭慧群 1991 40 2006]
[13]	Segall M D, Lindan P L D, Probert M J, Pickard C J, Hasnip P J, Clark S J, Payne M C 2002 J. Phys.:Cond. Matter 14 2717
[14]	Holzmann M, Bernu B, Olevanol V 2009 Phys. Rev. B 9 1308
[15]	Ceperley D M, Alder B J 1980 Phys. Rev. Lett. 45 566
[16]	Perdew J P, Zunger A 1981 Phys. Rev. B 23 5048
[17]	Fu H, Zunger A 1997 Phys. Rev. B 55 1642
[18]	Perdew J P, Chevary J A, Vosko S H, Jackson K A, Pederson M R, Singh D J 1992 Phys. Rev. B 46 6671
[19]	Lee P H, Xiao Z R, Chen K L, Chen Y, Kao S W, Chin T S 2009 Physica B 404 1989
[20]	Hu Y P, Ping K B, Yan Z J, Yang W, Gong C W 2011 Acta Phys. Sin. 60 107504 (in Chinese) [胡玉平, 平凯斌, 闫志杰, 杨雯, 宫长伟 2011 60 107504]
[21]	Lide D R 1992 CRC Handbook of Chemistry and Physies (Florida:CRC Press)
[22]	Ma H F 2007 Ph. D. Dissertation (Chengdu:Xinan Jiaotong University) (in Chinese) [麻焕峰 2007 博士学位论文 (成都:西南交通大学)]
[23]	Kittel C 1976 Introduction to Solid State Physics (5th Ed.) (NewYork:Wiley)
[24]	Wijs G A D, Kresse G 1998 Nature 392 805
[25]	Busehow K H J 1977 Rep. Prog. Phys. 40 1179
[26]	Bloch F Z 1929 Physica 57 545
[27]	Rahman G, Kim I G, Freeman A J 2010 J. Magn. Magn. Mater. 322 3153
[28]	Liu X H, Lin J B, Liu Y H, Jin Y J 2011 Acta Phys. Sin. 60 107104 (in Chinese) [刘新浩, 林景波, 刘艳辉, 金迎九 2011 60 107104]
[29]	Sun B, Liu S J, Duan S Q, Zhu W J 2007 Acta Phys. Sin. 56 1598 (in Chinese)[孙博, 刘绍军, 段素青, 祝文军 2007 56 1598]
[30]	Gao T H, Lu D M, Wu S Q, Zhu Z Z 2011 Acta Phys. Sin. 60 047502 (in Chinese) [高潭华, 卢道明, 吴顺情, 朱梓忠 2011 60 047502]
[31]	Wan J F, Chen S P, Fan K N 2000 Chin. J. Atom. Molecul. Phys. 17 629 (in Chinese) [万见锋, 陈世朴, 范康年 2000 原子与分子 17 629]
[32]	Liu J, Liu Y, Chen X M, Dong H N 2009 Acta Phys. Chem. Sin. 25 107 (in Chinese) [刘俊, 刘宇, 陈希明, 董会宁 2009 物理化学学报 25 107]
[33]	Gao T H, Wu S Q, Zhu Z Z 2011 J. Xiamen Univ. 50 674 (in Chinese) [高潭华, 吴顺情, 朱梓忠 2011 厦门大学学报 50 674]
[34]	Stoner E C 1936 Proc. Roy. Soc. A 154 656

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