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In this paper, Fe-Fe50 wt.%Si diffusion couples are subjected to 1200℃ heat treatment in static magnetic field. Fe-Fe50 wt.% Si diffusion couples were prepared by vacuum casting technology and later sectioned and polished for scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) studies before heat treated. Microstructures of the treated samples which were polished first were analyzed by SEM and EDS; results show that the phase components of the interfacial intermetallic compound layers are FeSi phase layer and Fe-Si solid solution layer whether the samples were treated with or without magnetic field, and the layer widths in the samples treated with magnetic field are smaller than those without magnetic field. According to the parabolic law, the interdiffusion coefficients of the interfacial intermetallic compound layers were calculated and the interdiffusion coefficients of FeSi phase and Fe-Si solution under a field of 0.8 T are reduced by 26.7% and 34.1%. The Gibbs energy due to applied field was calculated, data analysis shows that the reduction of interfacial intermetallic compound layer coefficients is attributed to the decrease of frequency factor, not the activation energy. Decrease in layer thickness decrease is suggested to be related to the retardation of atomic diffusion resulting from the magnetic field, and a possible theory based on Larmor precession is given to explain this effect.
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Keywords:
- Fe-Fe50 wt.%Si couple /
- static magnetic field /
- FeSi phase /
- Fe-Si solution layer
[1] Liang L F, Wang X, Zhang S H 2001 Hot Working Technology 5 15 (in Chinese) [梁龙飞, 王绪, 章守华 2001 热加工工艺 5 15]
[2] Tomoyuki K, Yoshihiro S, Toshio S, Ken'ichi S, Yuki M, Koichi K 1999 Materials Transactions 40 100
[3] Watanabe T, Tsurekawa S, Zhao X, Zuo L 2006 Scripta Materialia 54 969
[4] Liu X T, Cui J Z, Yu F X 2004 Journal of Materials Science 39 2935
[5] Ren X, Chen G Q, Zhou W L, Wu C W, Zhang J S 2009 Journal of Alloys and Compounds 472 525
[6] Hiromichi F, Sadahiro T 2011 Phys. Rev. B 83 0514412
[7] Ren X, Zhou W L, Chen G Q, Huang Z H, Zhang J S 2007 Journal of Materials Engineering 8 41 (in Chinese) [任晓, 周文龙, 陈国清, 黄朝晖, 张俊善 2007 材料工程 8 41]
[8] Li Z F, Dong J, Zeng S Q, Lu C, Ding W J, Ren Z M 2007 Journal of Alloys and C ompounds 440 132
[9] Hideo N, Sadamichi M, Yoshihira A, Masahiro K 1985 Tansactions of the Japan Institute of Metals 26 1
[10] Zhou S C, Pei W, Sha Y H, Zuo L 2007 Journal of Northeastern University(Natural Science) 28 1131 (in Chinese) [周世春, 裴伟, 沙玉辉, 左良 2007 东北大学学报(自然科学版) 28 1131]
[11] Bacaltchuk C, Castello-Branco G, Ebrahimi M, Garmestani H, Rollett A 2003 Scripta Materialia 48 1343
[12] An Z G, Hou H Y 2012 Southern Metals 187 11 (in Chinese) [安治国, 侯环宇 2012 南方金属 187 11]
[13] Borg R, Lai D 1970 Journal of Appl. Phys. 41 5193
[14] Baldwin N, Ivey D 1995 Journal of Phase Equilibria 16 300
[15] Zhang Y, Ivey D 1998 Journal of Materials Science 33 3131
[16] Gao M C, Bennett T, Rollett A, Laughlin D 2006 Journal of Physics D: Applied Physics 39 2890
[17] Hu G X, Cai X, Rong Y H 2006 Fundamentals of Materials Science (Shanghai: Shanghai Jiao Tong University Press) p145 (in Chinese) [胡赓祥, 蔡珣, 戎咏华 2006 材料科学基础 (上海:上海交通大学出版社) 第145页]
[18] Sigurds A, Miller D 1960 Journal of Appl. Phys. 31 986
[19] Jaccarino V, Wertheim G, Wernick J, Walker L, Sigurds A 1967 Phys. Rev. 160 476
[20] Chikazumi S 1984 Physics of Ferromagnetic Materials (vol.2) (Beijing: Metallurgical Industry Press) p4 (in Chinese) [近角聪信著 (杨膺善 韩俊德译) 1984 磁性体手册 (中卷) (北京: 冶金工业出版社) 第4页]
[21] Stephan K, Michael Z, Oliver O, Klaus D 2004 Solid State Ionics 172 407
[22] Mehrer H, Eggersmann M, Gude A, Salamon M, Sepiol B 1997 Materials Science and Engineering A 239 889
[23] Gou J, Zhao X F, Peng Y X 2010 Atomic and Nuclear Physics (Beijing: National Defense Industry Press) P86 (in Chinese) [郭江, 赵晓凤, 彭宜兴 2010 原子及原子核物理 (北京: 国防工业出版社) 第86页]
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[1] Liang L F, Wang X, Zhang S H 2001 Hot Working Technology 5 15 (in Chinese) [梁龙飞, 王绪, 章守华 2001 热加工工艺 5 15]
[2] Tomoyuki K, Yoshihiro S, Toshio S, Ken'ichi S, Yuki M, Koichi K 1999 Materials Transactions 40 100
[3] Watanabe T, Tsurekawa S, Zhao X, Zuo L 2006 Scripta Materialia 54 969
[4] Liu X T, Cui J Z, Yu F X 2004 Journal of Materials Science 39 2935
[5] Ren X, Chen G Q, Zhou W L, Wu C W, Zhang J S 2009 Journal of Alloys and Compounds 472 525
[6] Hiromichi F, Sadahiro T 2011 Phys. Rev. B 83 0514412
[7] Ren X, Zhou W L, Chen G Q, Huang Z H, Zhang J S 2007 Journal of Materials Engineering 8 41 (in Chinese) [任晓, 周文龙, 陈国清, 黄朝晖, 张俊善 2007 材料工程 8 41]
[8] Li Z F, Dong J, Zeng S Q, Lu C, Ding W J, Ren Z M 2007 Journal of Alloys and C ompounds 440 132
[9] Hideo N, Sadamichi M, Yoshihira A, Masahiro K 1985 Tansactions of the Japan Institute of Metals 26 1
[10] Zhou S C, Pei W, Sha Y H, Zuo L 2007 Journal of Northeastern University(Natural Science) 28 1131 (in Chinese) [周世春, 裴伟, 沙玉辉, 左良 2007 东北大学学报(自然科学版) 28 1131]
[11] Bacaltchuk C, Castello-Branco G, Ebrahimi M, Garmestani H, Rollett A 2003 Scripta Materialia 48 1343
[12] An Z G, Hou H Y 2012 Southern Metals 187 11 (in Chinese) [安治国, 侯环宇 2012 南方金属 187 11]
[13] Borg R, Lai D 1970 Journal of Appl. Phys. 41 5193
[14] Baldwin N, Ivey D 1995 Journal of Phase Equilibria 16 300
[15] Zhang Y, Ivey D 1998 Journal of Materials Science 33 3131
[16] Gao M C, Bennett T, Rollett A, Laughlin D 2006 Journal of Physics D: Applied Physics 39 2890
[17] Hu G X, Cai X, Rong Y H 2006 Fundamentals of Materials Science (Shanghai: Shanghai Jiao Tong University Press) p145 (in Chinese) [胡赓祥, 蔡珣, 戎咏华 2006 材料科学基础 (上海:上海交通大学出版社) 第145页]
[18] Sigurds A, Miller D 1960 Journal of Appl. Phys. 31 986
[19] Jaccarino V, Wertheim G, Wernick J, Walker L, Sigurds A 1967 Phys. Rev. 160 476
[20] Chikazumi S 1984 Physics of Ferromagnetic Materials (vol.2) (Beijing: Metallurgical Industry Press) p4 (in Chinese) [近角聪信著 (杨膺善 韩俊德译) 1984 磁性体手册 (中卷) (北京: 冶金工业出版社) 第4页]
[21] Stephan K, Michael Z, Oliver O, Klaus D 2004 Solid State Ionics 172 407
[22] Mehrer H, Eggersmann M, Gude A, Salamon M, Sepiol B 1997 Materials Science and Engineering A 239 889
[23] Gou J, Zhao X F, Peng Y X 2010 Atomic and Nuclear Physics (Beijing: National Defense Industry Press) P86 (in Chinese) [郭江, 赵晓凤, 彭宜兴 2010 原子及原子核物理 (北京: 国防工业出版社) 第86页]
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