Corrosion behavior of 2205 duplex stainless steel.

Jeffrey Platt, A. Guzman, A. Zuccari, D. W. Thornburg, B. F. Rhodes, Y. Oshida, B. K. Moore

Research output: Contribution to journalArticle

67 Citations (Scopus)

Abstract

The corrosion of 2205 duplex stainless steel was compared with that of AISI type 316L stainless steel. The 2205 stainless steel is a potential orthodontic bracket material with low nickel content (4 to 6 wt%), whereas the 316L stainless steel (nickel content: 10 to 14 wt%) is a currently used bracket material. Both stainless steels were subjected to electrochemical and immersion (crevice) corrosion tests in 37 degrees C, 0.9 wt% sodium chloride solution. Electrochemical testing indicates that 2205 has a longer passivation range than 316L. The corrosion rate of 2205 was 0.416 MPY (milli-inch per year), whereas 316L exhibited 0.647 MPY. When 2205 was coupled to 316L with equal surface area ratio, the corrosion rate of 2205 reduced to 0.260 MPY, indicating that 316L stainless steel behaved like a sacrificial anode. When 316L is coupled with NiTi, TMA, or stainless steel arch wire and was subjected to the immersion corrosion test, it was found that 316L suffered from crevice corrosion. On the other hand, 2205 stainless steel did not show any localized crevice corrosion, although the surface of 2205 was covered with corrosion products, formed when coupled to NiTi and stainless steel wires. This study indicates that considering corrosion resistance, 2205 duplex stainless steel is an improved alternative to 316L for orthodontic bracket fabrication when used in conjunction with titanium, its alloys, or stainless steel arch wires.

Original languageEnglish (US)
Pages (from-to)69-79
Number of pages11
JournalAmerican Journal of Orthodontics and Dentofacial Orthopedics
Volume112
Issue number1
StatePublished - Jul 1997

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Corrosion
Stainless Steel
Orthodontic Brackets
Immersion
Nickel
Titanium
Sodium Chloride
Electrodes

ASJC Scopus subject areas

  • Dentistry(all)
  • Surgery

Cite this

Platt, J., Guzman, A., Zuccari, A., Thornburg, D. W., Rhodes, B. F., Oshida, Y., & Moore, B. K. (1997). Corrosion behavior of 2205 duplex stainless steel. American Journal of Orthodontics and Dentofacial Orthopedics, 112(1), 69-79.

Corrosion behavior of 2205 duplex stainless steel. / Platt, Jeffrey; Guzman, A.; Zuccari, A.; Thornburg, D. W.; Rhodes, B. F.; Oshida, Y.; Moore, B. K.

In: American Journal of Orthodontics and Dentofacial Orthopedics, Vol. 112, No. 1, 07.1997, p. 69-79.

Research output: Contribution to journalArticle

Platt, J, Guzman, A, Zuccari, A, Thornburg, DW, Rhodes, BF, Oshida, Y & Moore, BK 1997, 'Corrosion behavior of 2205 duplex stainless steel.', American Journal of Orthodontics and Dentofacial Orthopedics, vol. 112, no. 1, pp. 69-79.
Platt J, Guzman A, Zuccari A, Thornburg DW, Rhodes BF, Oshida Y et al. Corrosion behavior of 2205 duplex stainless steel. American Journal of Orthodontics and Dentofacial Orthopedics. 1997 Jul;112(1):69-79.
Platt, Jeffrey ; Guzman, A. ; Zuccari, A. ; Thornburg, D. W. ; Rhodes, B. F. ; Oshida, Y. ; Moore, B. K. / Corrosion behavior of 2205 duplex stainless steel. In: American Journal of Orthodontics and Dentofacial Orthopedics. 1997 ; Vol. 112, No. 1. pp. 69-79.
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