The Effect of Phosphorous on Microstructure and Magnetic Properties of Fe Based Alloys

مهندسی متالورژی و مواد

Article 4, Volume 26, Issue 2 - Serial Number 12, September 2015, Pages 85-98   

Document Type: Original Articles

DOI: 10.22067/ma.v26i2.30910

Authors

Sahar Jafari^{* 1}; Ali Beitollahi¹; Bijan Eftekhari yekta¹; Tadakatsu Ohkubo²; Raghavan Gopalan³; Kazuhiro Hono²; Giselher Herzer⁴

¹Iran University of Science and Technology (IUST)

²national institute for materials science

³GmBH

⁴-

Abstract

In the present work, the magnetic properties of Fe-P alloys were investigated. The investigations showed that the magnitude of coercivity decreased by conducting two annealing treatments on samples. Samples having the highest amount of Phosphorous exhibited the lowest resistivity. Microstructural studies revealed that the prepared samples were free from Fe3P precipitate and the average grain size increased with an increase in the Phosphorous content giving rise to the decrease of hysteresis losses. Furthermore, amongst the whole prepared samples, Fe-1.1at.%P alloy showed the lowest hysteresis loss and eddy current loss as well as the highest magnetic induction.

Keywords

Fe-P alloys; Magnetic induction; Coercivity; Core loss; Microstructure

References

1. R.C. O'Handley, Modern Magnetic Materials: Principles and Applications, John Wiley & Sons, (1999).

2. D. Jiles, Introduction to magnetism and magnetic materials, CRC Press, Boca Raton, FL, (1998).

3. F.N. Bradley, Materials for magnetic functions, Hyden book company, INC., New York, (1971).

4. R.M. Bozorth, Ferromagnetism, IEEE Press, New York, (1993).

5. Y. Yoshizawa, S. Oguma, K. Yamauchi, New Fe-based soft magnetic alloys composed of ultrafine grain structure, J. Appl. Phys., 64 6044-6046, (1988).

6. Y. Ogawa, M. Naoe, Y. Yoshizawa, R. Hasegawa, Magnetic properties of high Fe-based amorphous material, J. Magn. Magn. Mater., 304, e675-e677, (2006).

7. R. Gopalan, Y.M. Chen, T. Ohkubo, K. Hono, High saturation magnetization and microstructure in melt-spun Fe–P ribbons, Scr.Mater., 61, 544-547, (2009).

8. Akihiro Makino, He Men, Takeshi Kubota, Kunio Yubuta, A. Inoue, FeSiBPCu Nanocrystalline Soft Magnetic Alloys with High Bs of 1.9 Tesla Produced by Crystallizing Hetero-Amorphous Phase, Mater. Trans., 50, 204- 209, (2009).

9. L. Anestiev, M. De Wulf, L. Froyen, L. Dupre, J. Melkebeek, Preparation of soft magnetic alloys Fe100−x−ySixPy (0

10. B. Weglinski, J. Kaczmar, Effect of Fe 3P addition on magnetic properties of sintered Iron, Powder. Metall, 23, 210-216, (1980).

11. M.-S. Chuang, S.-T.L. , Effects of phosphorous addition on the magnetic properties of sintered Fe-50wt. % Ni alloys, J. Mater. Eng. Perform., 12, 23-28, (2003).

12. J. Das, K. Chandra, P.S. Misra, B. Sarma, Novel powder metallurgy technique for development of Fe–P-based soft magnetic materials, J. Magn. Magn. Mater., 320, 906-915, (2008).

13. L. I. Frayman, D. R. Ryan, J.B. Ryan, Modified P/M soft magnetic materials for automotive applications, Int. J. Powder Metall., 34, 31-39, (1998).

14. J.T. Park, J.S. Woo, S.K. Chang, Effect of phosphorus on the magnetic properties of non-oriented electrical steel containing 0.8wt% silicon, J. Magn. Magn. Mater., 182, 381-388, (1998).

15. K.H.Moyer, Magnetic Materials and Properties for Powder Metallurgy Part Applications, in: ASM Handbook, vol 7, ASM International, pp. 1006-1020, (1998).

16. I. Tanaka, H. Yashiki, Magnetic properties and recrystallization texture of phosphorus-added non-oriented electrical steel sheets, J. Magn. Magn. Mater., 304, e611-e613, (2006).

17. C.K. Hou, C.T. Hu, S. Lee, The effect of phosphorus on the core loss of lamination steels, J. Magn. Magn. Mater., 109, 7-12, (1992).

18. A.P. Malozemoff, A.R. Williams, V.L. Moruzzi, "Band-gap theory" of strong ferromagnetism: Application to concentrated crystalline and amorphous Fe- and Co-metalloid alloys, Phys. Rev. B, 29, 1620-1632, (1984).

19. A.R. Williams, V.L. Moruzzi, A.P. Malozemoff, K. Terakura, Generalized Slater-Pauling curve for transition-metal magnets, Magnetics, IEEE Transactions on, 19, 1983-1988, (1983).

20. B.W. Corb, Magnetic moments and coordination symmetry in bcc Fe-M alloys, Phys. Rev. B, 31 (1985) 2521-2523.

21. B.W. Corb, R.C. O'Handley, N.J. Grant, Chemical bonding and local symmetry in cobalt- and iron-metalloid alloys, J. Appl. Phys., 53 (1982) 7728-7730.

22. B.W. Corb, R.C. O'Handley, N.J. Grant, Chemical bonding, magnetic moments, and local symmetry in transition-metal—metalloid alloys, Phys. Rev. B, 27 (1983) 636-641.

23. B. D. Culity , C.D. Graham, Introduction to Magnetic Materials, Second ed., IEEE Press and John Wiley, New Jersey, 2009.

24. W. S. Ko, J. Y. Park, J.-Y. Byun, J. K. Lee, N. J. Kim, B. J. Lee, Manipulation of surface energy anisotropy in iron using surface segregation of phosphorus: An atomistic simulation, Scr.Mater., 68 (2013) 329-332.

25. W. Pieper, J. Gerster, Total power loss density in a soft magnetic 49% Co--49% Fe--2% V-alloy, J. Appl. Phys., 109 (2011) 07A312-313.

26. Seil Lee, B.C.D. Cooman, Effect of Phosphorus on the Magnetic Losses of Non-oriented 2% Si Steel, ISIJ Int., 52 (2012) 1162-1170.