A study on corrosion resistance of ISO 5832-1 austenitic stainless steel used as orthopedic implant

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Lilian N. M. Braguin
Caio A. J. da Silva
Larissa O. Berbel
Isolda Costa
Mitiko Saiki

Abstract

The ISO 5832-1 austenitic stainless steel used as biomaterial is largely applied in the area of orthopedics, especially in the manufacture of implants, such as temporary or permanent replacement of bone structures. The objective of this study was to evaluate the localized corrosion resistance of the ISO 5832-1 stainless steel used in orthopedic implants by electrochemical tests in two different solutions. The results of this study are of great interest to evaluate the corrosion of metallic implants that can result in the release of corrosion products into bodily fluids causing possible adverse biological reactions. The determination of the chemical elements in the composition of the ISO 5832-1 stainless steel was performed by neutron activation analysis (NAA). The samples for electrochemical tests were grinded with silicon carbide paper up to #4000 finishing, followed by mechanical polishing with diamond paste. The open circuit potential measurements and anodic polarization curves were obtained in solution of 0.90 wt. % of NaCl and of simulated body fluid (SBF). The results indicated that the ISO 5832-1 stainless steel presented a high resistance to crevice corrosion in simulated body fluid solution but high susceptibility to this form of corrosion in the chloride solution.


 

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How to Cite
N. M. Braguin, L., A. J. da Silva, C. ., O. Berbel, L., Costa, I. ., & Saiki, M. (2021). A study on corrosion resistance of ISO 5832-1 austenitic stainless steel used as orthopedic implant. International Journal of Advances in Medical Biotechnology - IJAMB, 3(2). https://doi.org/10.25061/ijamb.v3i2.83
Section
Mini-review
Author Biographies

Lilian N. M. Braguin, Institute for Energy and Nuclear Research (IPEN – CNEN/SP)

Institute for Energy and Nuclear Research (IPEN – CNEN/SP), São Paulo (SP), Brazil

Caio A. J. da Silva, Instituto de Pesquisas Energéticas e Nucleares (IPEN – CNEN/SP)

Institute for Energy and Nuclear Research (IPEN – CNEN/SP), São Paulo (SP), Brazil

Larissa O. Berbel, Instituto de Pesquisas Energéticas e Nucleares (IPEN – CNEN/SP)

Institute for Energy and Nuclear Research (IPEN – CNEN/SP), São Paulo (SP), Brazil

Isolda Costa, Instituto de Pesquisas Energéticas e Nucleares (IPEN – CNEN/SP)

Institute for Energy and Nuclear Research (IPEN – CNEN/SP), São Paulo (SP), Brazil

Mitiko Saiki, Institute for Energy and Nuclear Research (IPEN – CNEN/SP)

Institute for Energy and Nuclear Research (IPEN – CNEN/SP), São Paulo (SP), Brazil

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