High damping in Fe-Ga-La alloys: Phenomenological model for magneto-mechanical hysteresis damping and experiment

doi:10.1016/j.jmst.2020.07.043

	High damping in Fe-Ga-La alloys: Phenomenological model for magneto-mechanical hysteresis damping and experiment
	Sun, Meng 2,3; Balagurov, Anatoly 4,5; Bobrikov, Ivan 4; Wang, Xianping 2; Wen, Wen 1; Golovin, Igor S.6; Fang, Qianfeng 2
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2021-05-10
卷号	72
关键词	Magneto-mechanical hysteresis damping Laves phase (LaGa2) Internal stress distribution Neutron-diffraction patterns Domain walls
ISSN号	1005-0302
DOI	10.1016/j.jmst.2020.07.043
通讯作者	Wang, Xianping(xpwang@issp.ac.cn) ; Fang, Qianfeng(qffang@issp.ac.cn)
英文摘要	Ferromagnetic high damping (FHA) alloys with a wide temperature range from -150 degrees C to 300 degrees C have unique application value in extreme environments. In the present work, the damping behaviors of Fe-21Ga-xLa (x = 0.12 wt.%, 0.24 wt.%, 0.47 wt.%, 1.18 wt.%, and 2.33 wt.%La) alloys have been studied in detail, and a new phenomenological model has been proposed. With the increase of La content, the Laves phase (LaGa2) in the matrix increases gradually, and the resistance opposing the domain movement increases as well. Combined with the results of synchrotron radiation X-ray diffraction, neutron diffraction, and magnetic domain observation, the resistance mainly comes from three parts: the average stress related to the lattice distortion of the matrix, the average stress related to the increasing area energy of domain walls (DWs), and the average stress related to the increasing demagnetization energy induced by the Laves phase. Different from the traditional method of reducing internal stress through annealing to improve the damping capacity, the proper internal stress barriers are necessary to Barkhausen jumps to dissipate energy. Therefore, proper doping to balance resistance and mobility of DWs is a reliable way to improve damping capacity. Meanwhile, for Fe-Al and Fe-Cr based Alloys, the new model also has a good fitting effect. This study provides a theoretical and experimental reference for improving the functional properties of ferromagnetic alloys. (C) 2021 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
资助项目	National Natural Science Foundation of China[51971212] ; Russian ScienceFoundation[19-72-20080]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	JOURNAL MATER SCI TECHNOL
WOS记录号	WOS:000636043600009
资助机构	National Natural Science Foundation of China ; Russian ScienceFoundation
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/121482]
专题	中国科学院合肥物质科学研究院
通讯作者	Wang, Xianping; Fang, Qianfeng
作者单位	1.Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai 201204, Peoples R China 2.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, HFIPS, Hefei 230031, Peoples R China 3.Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230026, Peoples R China 4.Joint Inst Nucl Res, Frank Lab Neutron Phys, Dubna, Russia 5.Lomonosov Moscow State Univ, Moscow, Russia 6.Natl Univ Sci & Technol MISIS, Moscow, Russia
推荐引用方式 GB/T 7714	Sun, Meng,Balagurov, Anatoly,Bobrikov, Ivan,et al. High damping in Fe-Ga-La alloys: Phenomenological model for magneto-mechanical hysteresis damping and experiment[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2021,72.
APA	Sun, Meng.,Balagurov, Anatoly.,Bobrikov, Ivan.,Wang, Xianping.,Wen, Wen.,...&Fang, Qianfeng.(2021).High damping in Fe-Ga-La alloys: Phenomenological model for magneto-mechanical hysteresis damping and experiment.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,72.
MLA	Sun, Meng,et al."High damping in Fe-Ga-La alloys: Phenomenological model for magneto-mechanical hysteresis damping and experiment".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 72(2021).