The effect of Nb and Ga addition on the corrosion resistance of Nd-Fe-B permanent magnets in acidic environments

Anti-Corrosion Methods and Materials

Volumn 51, Issue 1, 2004, Pages 31-40

  Gurappa, I ^a  

^a DEFENCE METALLURGICAL RESEARCH LABORATORY   (India)

Author keywords

Acid conditions; Corrosion resistance; Electrochemical corrosion; Magnetic devices; Magnetic fields

Indexed keywords

CORROSION RESISTANT ALLOYS; GALLIUM; GRAIN BOUNDARIES; NIOBIUM; PERMANENT MAGNETS; SCANNING ELECTRON MICROSCOPY;

PREFERENTIAL DISSOLUTION;

CORROSION RESISTANCE;

ACIDIC CORROSION; CORROSION RESISTANCE; ELECTROCHEMICAL CORROSION; GALLIUM; MAGNETIC FIELD; NIOBIUM;

EID: 0842348397     PISSN: 00035599     EISSN: None     Source Type: Journal    
DOI: 10.1108/00035590410512717     Document Type: Article

References (27)

1. Bala, H., Szymura, S. and Wyslocki, J.J. (1991), J. Mater Sci., Vol. 25, p. 571.
2. Bala, H., Pawlowska, G., Szymura, S., Sergeev, V.V. and Rabinovich, Y.M. (1990a), J. Magn. Magn. Mater., Vol. 87, p. L255.
3. Bala, H., Szymura, S., Rabinovich, M.Y., Sergeev, V.V., Pawlowska, G. and Pokrovskii, D.V. (1990b), Rev. Phys. Appl., Vol. 25, p. 1205.
4. Burzo, E., Redziwiatr, A.T. and Wallace, W.E. (1987), Solid State Commun., Vol. 61, p. 57.
5. Buschow, K.H.J. (1984) Wohlfarth, E.P. and Buschow, K.H.J. (Eds), Ferromagnetic Materials, Vol. 4, Elsevier Science, North Holland, Amsterdam, p. 109.
6. Chang, K.E. and Warren, G.W. (1994), J. Appl. Phys., Vol. 76, p. 6262.
7. Chin, T.S., Chang, R.T., Tsai, W.T. and Hung, M.P. (1988), IEEE Trans. Magn., Vol. 24, p. 1927.
8. Coey, J.M.D., Yaouane, A., Fruchart, D., Fruchart, R. and L'Heritier, P. (1987), J. Less-Common Met., Vol. 131, p. 419.
9. Deakin, M.J. and Nicholls, J.R. (1997), Mater. Sci. Forum, pp. 251-4, 777.
10. Endoch, M., Tokunaga, M. and Harada, H. (1987), IEEE Trans. Magn., Vol. MAG-23, p. 2290.
11. Fider, J., Groiss, C. and Tokanaga, M. (1990), IEEE Trans Magn., Vol. MAG-26, p. 1948.
12. Fontana, M.G. (n.d.), Corrosion Engineering, 3rd ed., p. 39.
13. Gurrappa, I. (2001), Corr. Prev. and Control, Vol. 48, p. 116.
14. Gurrappa, I. (2002), J. Alloys Comp., Vol. 339, p. 241.
15. Gurrappa, I. and Gogia, A.K. (2001), Surf. Coat and Tech., Vol. 139, p. 216.
16. Kim, A. and Jacobson, J. (1987), IEEE Trans. Magn., Vol. MAG-23, p. 2509.
17. Leyens, C., Schmidt, M., Peters, M. and Kaysser, W.A. (1997), Mater. Sci. Eng., Vol. A239-240, p. 680.
18. Mitchell, P. (1990), IEEE Trans. Magn., Vol. 26, p. 1933.
19. Ohashi, K., Tawara, Y., Yokoyama, T. and Kobayashi, N. (1987) Herget, C. and Poerschke, R. (Eds), Proceedings of 9th International Workshop on Rare Earth Magnets and their Applications, September 1987, Bad Sodan, p. 355.
20. Pouronian, F., Huang, M.Q. and Wallace, W.F. (1986), J. Less-Common Met., Vol. 120, p. 63.
21. Rodewald, W. and Schrey, P. (1990), J. Magn. Magn. Mater., Vol. 83, p. 206.
22. Sagawa, M., Fujimura, S., Togawa, N., Yamamoto, H. and Matsura, Y. (1984a), J. Appl. Phys., Vol. 55, p. 2083.
23. Sagawa, M., Fujimura, S., Yamamoto, H. and Hiraga, K. (1984b), IEEE Trans. Magn., Vol. MAG-20, p. 1584.
24. Shimotomi, M., Fukuda, Y., Fujita, A. and Ozaki, Y. (1990), IEEE Trans. Magn., Vol. MAG-26, p. 1939.
25. Warren, G.W., Gao, G. and Li, Q. (1991), J. Appl. Phys., Vol. 70, p. 6609.
26. Xiao, Y, Liu, S., Mildrum, H.F., Strnat, K.J. and Ray, A.E. (1988), J. Appl. Phys., Vol. 63, p. 3516.
27. Yamamoto, H., Hirosawa, S., Fujimura, S., Tokuhara, K., Nagata, H. and Sagawa, M. (1987), IEEE Trans. Magn., Vol. MAG-23, p. 2100.