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Materials-Metals 2017
Notes:
Page 36
November 16-17, 2017 Paris, France
13th Annual Conference on
Materials Science, Metal and Manufacturing
Journal of Materials Science and Nanotechnology
Volume 1 Issue 2
Nicoleta Simionescu et al., Mater Sci Nanotechnol 2017, 1:2
Corrosion behavior of 316l stainless steel as
biomaterial in physiological environment
Nicoleta Simionescu and Lidia Benea
CC-ITES - Dunarea de Jos University of Galati, Romania
The field of biomaterials is considered as fascinating and
challenging. It is fascinating because of its potential
applications and the need to improve the quality of life. It is
challenging due to the various complexities that is faces when
biomaterials meet biological environments for longevity of life by
maintaining or restoring tissues or organ functions. The stainless
steels, especially 316L type is the most used metallic biomaterials
for biomedical applications due to their good biocompatibility,
low price, excellent corrosion resistance, availability, easy
processing and high strength. Due to these favorable properties
316L stainless steel has become the most attractive biomaterial
for dental implants, stents and orthopedic implants. In dentistry
it is used in a variety of applications such as: temporary crowns,
sterilized instruments, arch wires, brackets in orthodontics, etc.
In vitro corrosion evaluation of an implant material in biological
solution is the first step in biocompatibility characterization. The
aim of this study is to evaluate the corrosion behavior of 316L
stainless steel in two saliva solutions, with different pH values
and chlorides content by electrochemical methods, in view of
orthodontic applications. In situ electrochemical measurements
as: open circuit potential (OCP), polarization resistance (Rp),
potentiodynamic polarization (PD), cyclic voltammetry
polarization (CV) and electrochemical impedance spectroscopy
(EIS) were performed to monitor the corrosion process. The
optical images of the tested samples have been observed before
and after corrosion experiments using an optical microscope
(Optika XDS-3 MET) to understand the nature of corrosion and
the damages produced by this process.
Biography
Nicoleta Simionescu is a PhD student in Materials Engineering domain at
Faculty of Engineering, Dunarea de Jos, University of Galati, Romania. Her
field of study is the corrosion of metallic biomaterials in different environments
which simulates the fluids of the human body.