Effect of Nb Addition on the Structure, Magnetic Properties and Annealing Embrittlement of A FeBCu Nanocrystalline Alloy

doi:10.11930/j.issn.1004-9649.202006191

Abstract

Abstract: To improve annealing process and decrease annealing embrittlement of FeBCu nanocrystalline alloys, the effect of Nb content on the structure, thermal properties, crystallized structure, magnetic properties and brittleness of melt-spun Fe_86-xB₁₃Cu₁Nb_x (x = 0~6) alloy ribbons was investigated by using X-ray diffraction, transmission electron microscopy, differential scanning calorimeter, vibrating sample magnetometer, and bending test method. The results show that the increase of Nb content enhances the thermal stability of amorphous phase, and refines α-Fe grains, improves soft magnetic properties as well as reduces the annealing embrittlement of the annealed alloys. The addition effect on the structure and properties is significant when the Nb content exceeds 2 at.% and becomes moderate when Nb content ≥ 5 at.%. The decreased annealing embrittlement of the nanocrystalline alloys is mainly due to the reductions of both grain size and volume fraction of the α-Fe phase.

Key words: Fe-based nanocrystalline alloy, Nb content, soft magnetic property, annealing embrittlement, crystallization activation energy

WU Licheng, LI Yanhui, ZHANG Wei. Effect of Nb Addition on the Structure, Magnetic Properties and Annealing Embrittlement of A FeBCu Nanocrystalline Alloy[J]. Electric Power, 2020, 53(10): 19-25,33.

Add to citation manager EndNote|Ris|BibTeX

URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.202006191

https://www.electricpower.com.cn/EN/Y2020/V53/I10/19

References

[1] YOSHIZAWA Y, OGUMA S, YAMAUCHI K. New Fe-based soft magnetic alloys composed of ultrafine grain structure[J]. Journal of Applied Physics, 1988, 64(10): 6044-6046.
[2] YOSHIZAWA Y. Magnetic properties and applications of nanostructured soft magnetic materials[J]. Scripta Materialia, 2001, 44(44): 1321-1325.
[3] MARIN P, HERNANDO A. Applications of amorphous and nanocrystalline magnetic materials[J]. Journal of Magnetism and Magnetic Materials, 2000, 215: 729-734.
[4] 乔峰, 何英发, 翁汉琍, 等. 变压器直流偏磁对无功功率影响的仿真分析[J]. 电力科学与技术学报, 2016, 31(4): 102-108
QIAO Feng, HE Yingfa, WENG Hanli, et al. Simulation analysis on the effection of transformers DC magnetic biasing to reactive power consumption[J]. JOurnal of Electric Power Science and Technology, 2016, 31(4): 102-108
[5] OHTA M, YOSHIZAWA Y. Improvement of soft magnetic properties in (Fe_0.85B_0.15)_{100- x}Cu_x melt-spun alloys[J]. Materials Transactions, 2007, 48(9): 2378-2380.
[6] TAI Z Z, HUANG B Y, LIU W S. Large electrical resistivity and high saturation magnetization nanocrystalline Fe₈₆B₁₃Cu₁ alloy prepared by hot isothermal pressing[J]. Materials Letters, 2010, 64(6): 733-735.
[7] OHTA M, YOSHIZAWA Y. Magnetic properties of high-B_s Fe-Cu-Si-B nanocrystalline soft magnetic alloys[J]. Journal of Magnetism and Magnetic Materials, 2008, 320(20): e750-e753.
[8] MAKINO A, MEN H, KUBOTA T, et al. FeSiBPCu Nanocrystalline soft magnetic alloys with high B_s of 1.9 Tesla produced by crystallizing hetero-amorphous phase[J]. Materials Transactions, 2009, 50(1): 204-209.
[9] LIU T, LI F C, WANG A D, et al. High performance Fe-based nanocrystalline alloys with excellent thermal stability[J]. Journal of Alloys and Compounds, 2019, 776: 606-613.
[10] ZANG B, PARSONS R, ONODERA K, et al. Effect of heating rate during primary crystallization on soft magnetic properties of melt-spun Fe-B alloys[J]. Scripta Materialia, 2017, 132: 68-72.
[11] WU L C, LI Y H, YUBUTA K, et al. Optimization of the structure and soft magnetic properties of a Fe₈₇B₁₃ nanocrystalline alloy by additions of Cu and Nb[J]. Journal of Magnetism and Magnetic Materials, 2020, 497: 166001.
[12] JIA X J, LI Y H, XIE G Q, et al. Role of Mo addition on structure and magnetic properties of the Fe₈₅Si₂B₈P₄Cu₁ nanocrystalline alloy[J]. Journal of Non-Crystalline Solids, 2018, 481: 590-593.
[13] HEIL T, WAHL K J, LEWIS A C, et al. Nanocrystalline soft magnetic ribbons with high relative strain at fracture[J]. Applied Physics Letters, 2007, 90(21): 212-508.
[14] JI L, ZHENG Z G, QIU Z G, et al. Effect of V addition on the performance of Fe_73.5Cu₁B₁₃Si_9.5Nb_{3- x}V_x soft magnetic alloys[J]. Journal of Alloys and Compounds, 2018, 766: 391-397.
[15] TURČANOVÁ J, MARCIN J, KOVÁČ J, et al. Magnetic and mechanical properties of nanocrystalline Fe-Ni-Nb-B alloys[J]. Journal of Physics: Conference Series, 2009, 144: 012065.
[16] JIA Xingjie, LI Yanhui, WU Licheng, et al. A study on the role of Ni content on structure and properties of Fe-Ni-Si-B-P-Cu nanocrystalline alloys[J]. Journal of Alloys and Compounds, 2020, 822: 152-784.
[17] ALLIA P, BARICCO M, TIBERTO P, et al. Kinetics of the amorphous-to-nanocrystalline transformation in Fe_73.5Cu₁Nb₃Si_13.5B₉[J]. Journal of Applied Physics, 1993, 74(5): 3137-3143.
[18] LUBORSKY F E, WALTER J L. Stability of amorphous metallic alloys[J]. Journal of Applied Physics, 1976, 47(8): 3648-3650.
[19] LI Y H, JIA X J, XU Y Q, et al. Soft magnetic Fe-Si-B-Cu nanocrystalline alloys with high Cu concentrations[J]. Journal of Alloys and Compounds, 2017, 722: 859-863.
[20] HERZER G. Modern soft magnets: amorphous and nanocrystalline materials[J]. Acta Materialia, 2013, 61(3): 718-734.
[21] OHTA M, YOSHIZAWA Y. High B_s nanocrystalline Fe_{84- x- y}Cu_xNb_ySi₄B₁₂ alloys (x = 0.0-1.4, y = 0.0-2.5)[J]. Journal of Magnetism and Magnetic Materials, 2009, 321(14): 2220-2224.
[22] KISSINGER H. Reaction kinetics in differential thermal analysis[J]. Analytical Chemistry, 1957, 29(11): 1702-1706.
[23] SENKOV O N, MIRACLE D B. Effect of the atomic size distribution on glass forming ability of amorphous metallic alloys[J]. Materials Research Bulletin, 2001, 36(12): 2183-2198.
[24] TAKEUCHI A, INOUE A. Classification of bulk metallic glasses by atomic size difference, heat of mixing and period of constituent elements and its application to characterization of the main alloying element[J]. Materials Transactions, 2005, 46(12): 2817-2829.
[25] WANG W H. Roles of minor additions in formation and properties of bulk metallic glasses[J]. Progress in Materials Science, 2007, 52(4): 540-596.
[26] MINNERT C, KUHNT M, BRUNS S, et al. Study on the embrittlement of flash annealed Fe_85.2B_9.5P₄Cu_0.8Si_0.5 metallic glass ribbons[J]. Materials & Design, 2018, 156: 252-261.
[27] KUMAR G, OHNUMA M, FURUBAYASHI T, et al. Thermal embrittlement of Fe-based amorphous ribbons[J]. Journal of Non-Crystalline Solids, 2008, 354(10-11): 882-888.
[28] 甘阳, 周本濂. FeMoSiB纳米晶薄带的裂纹扩展阻力和结构的关系[J]. 金属学报, 2001, 34(4): 391-394
GAN Yang, ZHOU Benlian. Study on the microstructure-fracture resistance relationship of FeMoSiB nanocrystalline ribbon[J]. Acta Metallurgica Sinica, 2001, 34(4): 391-394
[29] WANG W H. Correlation between relaxations and plastic deformation, and elastic model of flow in metallic glasses and glass-forming liquids[J]. Journal of Applied Physics, 2011, 110(5): 053-521.
[30] YANG F, YANG W. Crack growth versus blunting in nanocrystalline metals with extremely small grain size[J]. Journal of the Mechanics and Physics of Solids, 2009, 57(2): 305-324.
[31] SKORVANEK I, SVEC P, GRENECHE J M, et al. Influence of microstructure on the magnetic and mechanical behaviour of amorphous and nanocrystalline FeNbB alloy[J]. Journal of Physics-Condensed Matter, 2002, 14(18): 4717-4736.
[32] DONALD I W, DAVIES H A. The influence of transition-metal substitutions on the formation, stability and hardness of some Fe- and Ni-based metallic glasses[J]. Philosophical Magazine A, 1980, 42(3): 277-293.