Microstructure and magnetostriction of the Tb0.3Dy0.7 Fe1.95-xTix (x=0, 0.03, 0.06, 0.09) alloys

doi:10.3724/SP.J.1037.2011.00269

	Microstructure and magnetostriction of the Tb0.3Dy0.7 Fe1.95-xTix (x=0, 0.03, 0.06, 0.09) alloys
	Li, Xiaocheng 1; Ding, Yutian 1,2; Hu, Yong 1,2
刊名	Jinshu Xuebao/Acta Metallurgica Sinica
	2012
卷号	48 期号:1 页码:11-15
关键词	Binary alloys Copper alloys Crystal structure Dysprosium alloys Magnesium alloys Magnetostriction Melting furnaces Microstructure Rare earths Terbium alloys Ternary alloys Titanium alloys Vacuum furnaces High vacuum Laves-phase Low concentrations Matrix phase Paramagnetic phasis Primary phase Tb-Dy-Fe alloys Ti addition
ISSN号	04121961
DOI	10.3724/SP.J.1037.2011.00269
英文摘要	The Tb0.3Dy0.7 Fe1.95-xTix (x=0, 0.03, 0.06, 0.09) alloys were prepared by high- vacuum non-consumable arc melting furnace. The crystal structure, microstructure, magnetostriction and their relationships of the Tb0.3Dy0.7Fe1.95-xTix (x=0, 0.03, 0.06, 0.09) alloys were systematically studied. The results demonstrated that the matrix phase of the Tb0.3Dy0.7Fe1.95-xTix (x=0.03, 0.06, 0.09) alloys consisted predominantly of the Laves phase with MgCu2 structure. After Ti addition, the lattice parameter of the Laves phase in the alloys was decreased by substituting rare earth elements Tb and Dy, and the formation of the TiFe2 phase as the primary phase made the solidifying liquid become rich in rare earths and suppressed the formation of the deleterious RFe3 (R=Tb and Dy) phase. Ti was found to be soluble in the matrix RFe2 and R-rich phases and formed the matrix (R, Ti)Fe2 and (R, Ti)-rich phases. The concentration of Ti affected the magnetostriction significantly. The improvement in magnetostriction was maximum for the Ti-added alloys with a low concentration of the Ti (x=0.03) as compared to the parent alloy Tb0.3Dy0.7Fe1.95. However, the decrease in magne-tostriction at a higher concentration (x=0.09) was due to the formation of paramagnetic phases TiFe2 and (R, Ti)-rich. Whereas the magnetostriction had little improvement as compared to the parent alloy Tb0.3Dy0.7Fe1.95. © Right.
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	中文
出版者	Chinese Academy of Sciences
WOS记录号	WOS:000301635900002
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/111029]
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
作者单位	1.State Key Laboratory of Gansu Advanced Nonferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China; 2.Wenzhou Pump and Valve Engineering Research Institute, Lanzhou University of Technology, Wenzhou 325105, China
推荐引用方式 GB/T 7714	Li, Xiaocheng,Ding, Yutian,Hu, Yong. Microstructure and magnetostriction of the Tb0.3Dy0.7 Fe1.95-xTix (x=0, 0.03, 0.06, 0.09) alloys[J]. Jinshu Xuebao/Acta Metallurgica Sinica,2012,48(1):11-15.
APA	Li, Xiaocheng,Ding, Yutian,&Hu, Yong.(2012).Microstructure and magnetostriction of the Tb0.3Dy0.7 Fe1.95-xTix (x=0, 0.03, 0.06, 0.09) alloys.Jinshu Xuebao/Acta Metallurgica Sinica,48(1),11-15.
MLA	Li, Xiaocheng,et al."Microstructure and magnetostriction of the Tb0.3Dy0.7 Fe1.95-xTix (x=0, 0.03, 0.06, 0.09) alloys".Jinshu Xuebao/Acta Metallurgica Sinica 48.1(2012):11-15.