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Microstructure and Interfacial Evolution of Sintered NdFeB Permanent Magnet/Steel Joint Soldered with Zn-Sn Alloy

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Abstract

Sintered NdFeB permanent magnets and steel were soldered successfully using Zn-Sn alloy. The effects of Sn content on the microstructure and mechanical properties of soldered joints were investigated. The results showed that the typical interfacial microstructure represented NdFeB/NdFe5.5Zn(B) + ξ-FeZn13/Zn + β-Sn/ξ-FeZn13 + δ-FeZn10 + Γ-Fe3Zn10/steel. With the addition of Sn, the thickness of the NdFe5.5Zn(B) phase increased, while more β-Sn was observed in the soldering seam. The maximum shear strength reached 45.3 MPa with a Sn proportion of 6 wt.%, and excessive growth of the NdFe5.5Zn(B) phase in the joints deteriorated the mechanical properties. The fracture morphology exhibited a ductile-to-brittle transition with the occurrence of interfacial fractures due to thick intermetallic compounds.

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References

  1. M. Sagawa, S. Fujimura, N. Togawa, H. Yamamoto, and Y. Marsuura, New Material for Permanent Magnets on a Base of Nd and Fe, J. Appl. Phys., 1984, 55(6), p 2083–2087

    Article  CAS  Google Scholar 

  2. Y. Matsuura, Recent Development of Nd-Fe-B Sintered Magnets and Their Applications, J. Magn. Magn. Mater., 2006, 303(2), p 344–347

    Article  CAS  Google Scholar 

  3. O. Gutfleisch, M.A. Willard, E. Brück, C.H. Chen, S.G. Sankar, and J.P. Liu, Magnetic Materials and Devices for the 21st Century: Stronger, Lighter, and More Energy Efficient, Adv. Mater., 2011, 23(7), p 821–842

    Article  CAS  Google Scholar 

  4. Y.J. Li, Q. Dai, C.Y. Deng, R.X. Sun, J. Zheng, Z. Chen, Y. Sun, H. Wang, Z.D. Yuan, C. Fang, and Z.G. Deng, Field Homogeneity Improvement of Maglev NdFeB Magnetic Rails from Joints, SpringerPlus, 2016, 5(1), p 372–382

    Article  CAS  Google Scholar 

  5. H. Kim, C. Koh, D. Kim, and G. Kang, Application of Polar Anisotropic Sintered NdFeB Ring-Type Permanent Magnet to Brush-Less DC Motor, IEEE Trans. Magn., 2006, 43, p 2522–2524

    Article  Google Scholar 

  6. S. Chatterjee, S. Koley, R.B. Sarkar, N. Behera, M. Manna, S. Mukherjee, and S. Kundu, Design and Development of Galvannealed Dual-Phase Steel: Microstructure, Mechanical Properties and Weldability, J. Mater. Eng. Perform., 2019, 28(1), p 231–241

    Article  CAS  Google Scholar 

  7. H. Yang, Y. Du, and Z. Sun, The Analysis of Adhesion Failure Between Ni-Coating and Sintered NdFeB Substrate, J. Phys. Conf. Ser., 2011, 266, p 1–5

    Google Scholar 

  8. P. Zhang, G. Xu, J. Liu, X. Yi, Y. Wu, and J. Chen, Effect of Pretreating Technologies on the Adhesive Strength and Anticorrosion Property of Zn Coated NdFeB Specimens, Appl. Surf. Sci., 2016, 363, p 499–506

    Article  CAS  Google Scholar 

  9. P. Zhang, J. Liu, G. Xu, X. Yi, J. Chen, and Y. Wu, Anticorrosive Property Al Coatings on Sintered NdFeB Substrates Via Plasma Assisted Physical Vapor Deposition Method, Surf. Coat. Technol., 2015, 282, p 86–93

    Article  CAS  Google Scholar 

  10. B.H. Chang, S.J. Bai, D. Du, H. Zhang, and Y. Zhou, Studies on the Micro-Laser Spot Welding of an NdFeB Permanent Magnet with a Low Carbon Steel, J. Mater. Process. Tech., 2010, 210(6), p 885–891

    Article  CAS  Google Scholar 

  11. B.H. Chang, D. Du, C.H. Yi, B. Xing, and Y.H. Li, Influences of Laser Spot Welding on Magnetic Property of a Sintered NdFeB Magnet, Metals, 2016, 202(6), p 1–9

    Google Scholar 

  12. K. Suganuma, S.-J. Kim, and K.-S. Kim, High-Temperature Lead-Free Solders: Properties and Possibilities, JOM, 2009, 61, p 64–71

    Article  CAS  Google Scholar 

  13. G. Zeng, S. McDonald, and K. Nogita, Development of High-Temperature Solders: Review, Microelectron. Reliab., 2012, 52, p 1306–1322

    Article  CAS  Google Scholar 

  14. F.P. McCluskey, M. Dash, Z. Wang, and D. Huff, Reliability of High Temperature Solder Alternatives, Microelectron. Reliab., 2006, 46, p 1910–1914

    Article  CAS  Google Scholar 

  15. Y.-A. Shen, C.-M. Lin, J. Li, R. Gao, and H. Nishikawa, Suppressed Growth of (Fe, Cr, Co, Ni, Cu) Sn2 Intermetallic Compound at Interface Between Sn-3.0 Ag-0.5 Cu Solder and FeCoNiCrCu0.5 Substrate During Solid-State Aging, Sci. Rep., 2019, 9, p 1–5

    Article  Google Scholar 

  16. M. Xiong and L. Zhang, Interface Reaction and Intermetallic Compound Growth Behavior of Sn-Ag-Cu Lead-Free Solder Joints on Different Substrates in Electronic Packaging, J. Mater. Sci., 2019, 54, p 1741–1768

    Article  CAS  Google Scholar 

  17. A. Debski, W. Gasior, Z. Moser, and R. Major, Enthalpy of Formation of Intermetallic Phases from the Au-Sn System, J. Alloys Compd., 2010, 491, p 173–177

    Article  CAS  Google Scholar 

  18. W. Tang, A. He, Q. Liu, and D.G. Ivey, Fabrication and Microstructures of Sequentially Electroplated Au-rich, Eutectic Au/Sn Alloy Solder, J. Mater. Sci.: Mater. Electron., 2008, 19, p 1176–1183

    CAS  Google Scholar 

  19. T. Shimizu, H. Ishikawa, I. Ohnuma, and K. Ishida, Zn-Al-Mg-Ga Alloys as Pb-Free Solder for Die-Attaching Use, J. Electron. Mater., 1999, 28, p 1172–1175

    Article  CAS  Google Scholar 

  20. J.-E. Lee, K.-S. Kim, K. Suganuma, M. Inoue, and G. Izuta, Thermal Properties and Phase Stability of Zn-Sn and Zn-In Alloys as High Temperature Lead-Free Solder, Mater. Trans., 2007, 48, p 584–593

    Article  CAS  Google Scholar 

  21. T. Takahashi, S. Komatsu, H. Nishikawa, and T. Takemoto, Improvement of High-temperature Performance of Zn-Sn Solder Joint, J. Electron. Mater., 2010, 39, p 1241–1247

    Article  CAS  Google Scholar 

  22. S. Kim, K.-S. Kim, and K. Suganuma, Interfacial Reaction and die Attach Properties of Zn-Sn High-Temperature Solders, J. Electron. Mater., 2009, 38, p 266–272

    Article  CAS  Google Scholar 

  23. Y. Hu, I.P. Jones, M. Aindow, and I.R. Harris, Zn Diffusion Induced Precipitation Along Grain Boundaries in Zn-Coated NdFeB Magnets, J. Magn. Magn. Mater., 2003, 261(1), p 13–20

    Article  CAS  Google Scholar 

  24. A.R. Marder, The Metallurgy of Zinc-Coated Steel, Prog. Mater. Sci., 2000, 45, p 191–271

    Article  CAS  Google Scholar 

  25. N.L. Okamoto, D. Kashioka, M. Inomoto, H. Inui, H. Takebayashi, and S. Yamaguchi, Compression Deformability of Γ and ζ Fe-Zn Intermetallics to Mitigate Detachment of Brittle Intermetallic Coating of Galvannealed Steels, Scr. Mater., 2013, 69(4), p 307–310

    Article  CAS  Google Scholar 

  26. X. Yang, W. Hu, X. Yan, and Y. Lei, Microstructure and Solderability of Zn-6Al-xSn Solders, J. Electron. Mater., 2015, 44(4), p 1128–1133

    Article  CAS  Google Scholar 

  27. T. Zhang, X. Yang, K. Miao, D. Li, S. Chen, X. Cui, M. Huang, G. Fan, and L. Geng, Microstructure Evolution and Brazing Mechanism of Ti5Si3/Ti3Al composite and Ni-Based Superalloy Joints Using Ti-Zr-Cu-Ni Filler Alloy, Mater. Sci. Eng., A, 2018, 713, p 28–34

    Article  CAS  Google Scholar 

  28. X.Q. Si, H.Y. Zhao, J. Cao, X.G. Song, D.Y. Tang, and J.C. Feng, Brazing High Nb Containing TiAl Alloy Using Ti-28Ni Eutectic Brazing Alloy: Interfacial Microstructure and Joining Properties, Mater. Sci. Eng., A, 2015, 636, p 522–528

    Article  CAS  Google Scholar 

  29. G. Feng, Z. Li, Z. Zhou, Y. Yang, D.P. Sekulic, and M.R. Zachariah, Microstructure and Mechanical Properties of Cf/Al-TiAl Laser-Assisted Brazed Joint, J. Mater. Process. Tech., 2018, 255, p 195–203

    Article  CAS  Google Scholar 

  30. V. Raghavan, Fe-Zn, J. Phase Equilibria, 2003, 24, p 544–545

    Article  CAS  Google Scholar 

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Acknowledgments

This work was supported by the Development of Science and Technology of Jilin Province (Grant No. 20180520005JH).

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Luo, C., Qiu, X., Xu, Y. et al. Microstructure and Interfacial Evolution of Sintered NdFeB Permanent Magnet/Steel Joint Soldered with Zn-Sn Alloy. J. of Materi Eng and Perform 29, 3373–3382 (2020). https://doi.org/10.1007/s11665-020-04854-2

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  • DOI: https://doi.org/10.1007/s11665-020-04854-2

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