Galvanic Corrosion of Ferritic Stainless Steels Used for Dental Magnetic Attachments in Contact with an Iron-platinum Magnet
Source abstract
Abstract
This study was an examination of the galvanic corrosion of ferritic stainless steels, namely SUS 444, SUS XM27, and SUS 447J1, in contact with a Fe-Pt magnet. The surface area ratio of each stainless steel to the Fe-Pt magnet was set at 1/1 or 1/10. Galvanic corrosion between the stainless steels and the magnet was evaluated by the amount of released ions and the electrochemical properties in 0.9% NaCl solution. Although each stainless steel showed sufficient corrosion resistance for clinical use, the amount of ions released from each tended to increase when the stainless steel was in contact with the magnet. When the surface area ratio was reduced to 1/10, the amount of Fe ions released from the stainless steels increased significantly more than when there was no contact. Since contact with the magnet which possessed an extremely noble potential created a very corrosive environment for the stainless steels, 447J1 was thus the recommended choice against a corrosion exposure as such.
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Research context
OpenAlex topics: Hydrogen embrittlement and corrosion behaviors in metals · Non-Destructive Testing Techniques · Corrosion Behavior and Inhibition
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (21)
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1. TANAKA YOSHINOBU · 1999 · 43 · 42210.2186/jjps.43.422 ↗
2. 2) Tanaka Y. Dental magnetic attachments, Ishiyaku Publishers Inc., Tokyo, 1992, pp.29-70.
3. MIZUTANI HIROSHI · 1997 · 41 · 90210.2186/jjps.41.902 ↗
4. 10.1016/S0022-3913(05)80386-510.1016/S0022-3913(05)80386-5 ↗
5. 5) Tanaka Y, Hoshiai K, Nakano K, Hiranuma K, Honkura Y, Arai K, Ishijima T, Hirai T. A comparative study of currently available dental magnetic attachments. J J Mag Dent 1992; 1: 35-44.
6. 6) Okuno O, Nakano T, Hamanaka H, Kinouchi Y. Sandwich type dental magnetic devices of Nd-Fe-B magnet and permendur. J J Dent Mater 1989; 8: 539-545.
7. 7) Watanabe K. Permanent magnets properties in Fe-Pt-Nb system alloys. J Jpn Inst Metals 1990; 54: 1284-1290.10.2320/jinstmet1952.54.11_1284 ↗
8. KANNO TARO · 1998 · 42 · 42410.2186/jjps.42.424 ↗
9. 9) Kanno T, Yoda M, Kimura K, Takada Y, Iijima K, Okuno O, Nakayama T. An application of Fe-Pt-Nb magnet to crown and bridge prosthodontics. J J Mag Dent 1996; 5: 48-56.
10. 10) Nakayama T, Watanabe M, Homma M, Kanno T, Kimura K, Okuno O. Magnetic properties of hard magnetic Fe-Pt alloys in dental casts. J Magn Soc Jpn 1997; 21: 377-380.10.3379/jmsjmag.21.377 ↗
11. HAYASHI EISEI · 2005 · 24 · 16310.4012/dmj.24.163 ↗
12. 12) Okuno O, Iimuro FT, Nakano T, Hamanaka H, Kinouchi Y, Matsui Y. Corrosion resistance, mechanical properties, and attractive force of Pt-Fe-Nb magnets. J J Mag Dent 1992; 1: 14-22.
13. 13) Kanno T, Nakayama T, Kimura K, Okuno O. Effects of Si and Nb on Fe-Pt magnetic alloys. J J Dent Mater 1998; 17: 54-61.
14. HAOKA K · 2000 · 19 · 27010.4012/dmj.19.270 ↗
15. 15) Takada Y, Okuno O. Corrosion behavior of stainless steels and dental precious alloys used for dental magnetic attachments. J J Mag Dent 1994; 3: 14-22.
16. 16) Takada Y, Okuno O. Reversing potentials and increasing amount of released ions with contact corrosion between stainless steels and Au-Ag-Pd alloys. J J Dent Mater 1996; 15: 525-531.
17. 17) Takada Y, Tanaka K, Iijima K, Okuno O. Relations between the volume of elution ions and the corrosion current densities for ferritic stainless steels coupled with dental precious metals. J J Dent Mater 1995; 25(Special Issue): 192-193.
18. 18) Haoka K. Corrosion resistance of the Pt-Fe magnets and magnetic stainless steels under the oral circumstances. Tohoku Univ. thesis, 2000.10.4012/dmj.19.270 ↗
19. 19) Hasegawa M. Sutenresukou Nyuumonn(Introductory of stainless steels), Tokusyukoukurabu, Tokyo, 1969, pp.39-40.
20. 20) Takada Y, Okuno O. Estimation of corrosion resistance for SUS430 stainless steels made from high-purity Fe regarding dental magnetic materials. J J Mag Dent 1995; 4: 10-18.
21. 21) Takahashi K, Nosaka Y, Yoshida Y, Wakatsu E. Tusestu Ha no Kaibogaku (Textbook of tooth anatomy), Ishiyaku Publisher, Tokyo, 1986, pp.37-83.