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硼和铬对多晶Fe_(83)Ga_(17)合金磁致伸缩和室温力学性能的影响 被引量:11

Effect of boron and chromium on magnetostriction and mechanical properties of polycrystalline Fe_(83)Ga_(17) alloy
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摘要 研究了添加B和Cr对多晶Fe83Ga17合金磁致伸缩和拉伸力学性能的影响.结果表明:在Fe83Ga17合金中添加原子分数1%的B,不仅提高了合金的磁致伸缩性能,而且还大幅提高了合金的室温力学性能,抗拉强度达到548MPa,延伸率达到3.56%.B元素以Fe2B相的形式偏聚在晶界,细化了合金晶粒,增加了合金晶界结合力,抑制了沿晶脆断.添加原子分数2%的Cr,Cr固溶在Fe83Ga17合金中,同时提高了合金的磁致伸缩性能和室温力学性能,(Fe83Ga17)98Cr2合金最大磁致伸缩系数达到7×10-5,延伸率也较Fe83Ga17合金有所增加,达到0.6%. The effects of B and Cr additions on the magnetostriction and mechanical properties of polycrystalline Fe83Ga17 alloy were investigated.It was found that 1%(atom fraction)addition of B increased the magnetostriction of the Fe83Ga17 alloy and improved the room temperature ductility and tensile strength.Compared with the Fe83Ga17 alloy,the elongation and tensile strength of the(Fe83Ga17)99B1 alloy increased to 3.56% and 548 MPa,respectively.The element of B precipitated at grain boundaries in the form of Fe2B,resulted in that the grains refined and the grain boundary cohesion increased,so that granular fracture was inhibited.The element of Cr dissolved as Cr atoms in the matrix Fe83Ga17 alloy.The 2%(atom fraction)addition of Cr improved both the magnetostriction and room temperature mechanical properties of the Fe83Ga17 alloy.The maximum magnetostriction and elongation of the(Fe83Ga17)98Cr2 alloy were 7×10-5 and 0.6%,respectively.
出处 《北京科技大学学报》 EI CAS CSCD 北大核心 2009年第10期1281-1285,共5页 Journal of University of Science and Technology Beijing
基金 国家自然科学基金资助项目(No.50775015)
关键词 铁镓合金 磁致伸缩 力学性能 Fe-Ga alloy boron chromium magnetostriction mechanical properties
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  • 1Guruswamy S, Srisukhumbowornchai N, Clark A E, et al. Strong, ductile, and low field-magnetostrictive alloys based on Fe Ga. Seripta Mater, 2000, 43(3): 239.
  • 2Zhang M C, Gao X X, Jiang H L, et al. Effect of Ga content on the magnetostriction and microstructure of Fe Ga ribbons. J Alloys Compd, 2007, 42/44:431.
  • 3McGary P D, Tan L, Zou J, et al. Magnetic nanowires for acoustic sensors (invited). J Appl Phys, 2006, 99: Article No. 08B310-1.
  • 4Downey P R, Flatau A B. Bending behavior of iron-gallium (Galfenol) alloys for sensor applications. Proc SPIE, 2005, 5764:120.
  • 5Kellogg R A, Russell A M, Lograsso T A, et al. Tensile properties of magnetostrictive iron-gallium alloy. Acta Mater, 2004, 52:5043.
  • 6Summers E, Lograsso T A, Snodgrass J D, et al. Magnetic and mechanical properties of polycrystalline Galfenol. Proc SPIE, 2004, 5387:448.
  • 7Na S M, Flatau A B. Effect of boron addition on magnetostriction and mechanical properties of rolled polycrystalline Fe-18.7% Ga alloy. Mater Res Soc SymD Proc, 2006, 888:329.
  • 8Cheng L M, Nolting A E, Voyzelle B, et al. Deformation behavior of polycrystalline Galfenol at elevated temperatures. Proc SPIE, 2007, 6526: Article No. 6526N-1.
  • 9Na S M, Flatau A B. Deformation behavior and magnetostriction of polycrystalline Fe-Ga-X(X=B, C, Mn, Mo, Nb, NbC)alloys. J Appl Phys, 2008, 103: Article No. 07D304-1.
  • 10Clark A E, Restoff J B, Wun-Fogle M, et al. Magnetostriction of ternary Fe-Ga-X (X = C, V, Cr, Mn, Co, Rh) alloys. J Appl Phys, 2007, 101: Article No. 09C507-1.

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