scholarly journals Increased Corrosion Resistance of Stainless Steel 316l Coated with Nanogold Layers in Simulated Body Fluid (Hank’s Solution)

2019 ◽  
Vol 14 (3) ◽  
pp. 789-795
Author(s):  
Hussein Sabea Amnas ◽  
Murtdha Adhab Siyah ◽  
Rostam Moradian ◽  
Iraj Manouchehri
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Simulated Body Fluid ◽  
Body Fluid ◽  
Stainless Steel 316L ◽  
Hank’S Solution

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

2021 ◽  
Vol 3 (2) ◽  
Author(s):  
Lilian N. M. Braguin ◽  
Caio A. J. da Silva ◽  
Larissa O. Berbel ◽  
Isolda Costa ◽  
Mitiko Saiki
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Austenitic Stainless Steel ◽  
Simulated Body Fluid ◽  
Body Fluid ◽  
Chemical Elements ◽  
Simulated Body Fluid Solution ◽  
Orthopedic Implants ◽  
Localized Corrosion ◽  
Electrochemical Tests

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.  

Electrochemical behaviour of some commercial stainless steel alloys in simulated body fluid electrolytes

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
A. Bahrawy ◽  
Mohamed El-Rabiei ◽  
Hesham Elfiky ◽  
Nady Elsayed ◽  
Mohammed Arafa ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Simulated Body Fluid ◽  
Body Fluid ◽  
Electrochemical Behaviour ◽  
Protective Oxide ◽  
Steel Alloys ◽  
Content Type ◽  
X Ray ◽  
Protective Oxide Film

Purpose The commercial stainless steels have been used extensively in the biomedicine application and their electrochemical behaviour in the simulated body fluid (SBF) are not uncovered obviously. In this research, the corrosion resistance of the commercial stainless steel of Fe–17Cr–xNi alloys (x = 4, 8, 10 and 14) has been studied. This study aims to evaluate the rate of corrosion and corrosion resistance of some Fe–Cr–Ni alloys in SBF at 37°C. Design/methodology/approach In this research, the corrosion resistance of the commercial stainless steel of Fe–17Cr–xNi alloys has been studied using open circuit potential, electrochemical impedance spectroscopy and potentiodynamic polarization in the SBF at 37°C and pH 7.4 for a week. Also, the surface morphology of the four alloys was investigated using scanning electron microscopy, elemental composition was obtained via energy dispersive spectroscopy and the crystal lattice structure of Fe–17Cr–xNi alloys was obtained using X-ray diffraction technique. The chemical structure of the protective oxide film has been examined by X-ray photoelectron spectroscopy (XPS) and metals ions released into the solution have been detected after different immersion time using atomic absorption spectroscopy. Findings The results revealed that the increase of the Ni content leads to the formation of the stable protective film on the alloys such as the Fe–17Cr–10Ni and Fe–17Cr–14Ni alloys which possess solid solution properties. The Fe–17Cr–14Ni alloy displayed highest resistance of corrosion, notable resistance for localized corrosion and the low corrosion rate in SBF because of the formation of a homogenously protective oxide film on the surface. The XPS analysis showed that the elemental Fe, Cr and Ni react with the electrolyte medium and the passive film is mainly composed of Cr2O3 with some amounts of Fe(II) hydroxide at pH 7.4. Originality/value This work includes important investigation to use commercial stainless steel alloys for biomedical application.

A new double-layer sol–gel coating to improve the corrosion resistance of a medical-grade stainless steel in a simulated body fluid

2013 ◽  
Vol 97 ◽  
pp. 162-165 ◽  
Author(s):  
E. Salahinejad ◽  
M.J. Hadianfard ◽  
D.D. Macdonald ◽  
M. Mozafari ◽  
D. Vashaee ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Simulated Body Fluid ◽  
Double Layer ◽  
Body Fluid ◽  
Sol Gel ◽  
Medical Grade

Fabrication of Bioactive Stainless Steel by the Function of Apatite Nuclei

2016 ◽  
Vol 696 ◽  
pp. 151-156 ◽  
Author(s):  
Takeshi Yabutsuka ◽  
Ryoki Karashima ◽  
Shigeomi Takai ◽  
Takeshi Yao
Keyword(s):  
Stainless Steel ◽  
Simulated Body Fluid ◽  
Bonding Strength ◽  
Body Fluid ◽  
Apatite Layer ◽  
Mechanical Interlocking ◽  
High Bonding Strength ◽  
Fluid Formation ◽  
Bonelike Apatite

Micropores were formed on the surfaces of stainless steel (SUS) by sandblasting methods and Apatite Nuclei (AN) were formed in the pores. By this treatments, a bioactive SUS was fabricated. Apatite-forming ability of the SUS was evaluated by immersing in an acellular simulated body fluid. Formation of bonelike apatite was induced on the surface of the SUS within 1 day. High bonding strength of the bonelike apatite layer was achieved by a mechanical interlocking effect between the bonelike apatite formed in the pores and the SUS specimen.

scholarly journals Corrosion study of metallic biomaterials in simulated body fluid

10.30544/384 ◽  
2011 ◽  
Vol 17 (1) ◽  
pp. 13-22 ◽  
Author(s):  
Hamid Reza Asgari Bidhendi ◽  
Majid Pouranvari
Keyword(s):  
Stainless Steel ◽  
Simulated Body Fluid ◽  
Corrosion Behavior ◽  
Body Fluid ◽  
Pure Titanium ◽  
Localized Corrosion ◽  
Commercially Pure Titanium ◽  
Corrosion Properties ◽  
Cyclic Polarization ◽  
Cp Ti

Titanium alloys and stainless steel 316L are still the most widely used biomaterials for implants despite emerging new materials for this application. There is still someambiguity in corrosion behavior of metals in simulated body fluid (SBF). This paper aims at investigating the corrosion behavior of commercially pure titanium (CP-Ti), Ti–6Al–4V and 316LVM stainless steel (316LVM) in SBF (Hank’s solution) at37 ºC using the cyclic polarization test. Corrosion behavior was described in terms of breakdown potential, the potential and rate ofcorrosion, localized corrosion resistance, andbreakdown repassivation. The effects of anodizing on CP-Ti samples and the passivation on the 316LVM were studied in detail. It was shown that CP-Ti exhibited superior corrosion properties compared to Ti–6Al–4V and 316LVM.

Evaluation of the Bioactivity Behavior of a 48 Wt %SiO2 Bioglass through Experiments in Simulated Body Fluid

2012 ◽  
Vol 727-728 ◽  
pp. 1238-1242 ◽  
Author(s):  
Roger Borges ◽  
Antônio Carlos da Silva ◽  
Juliana Marchi
Keyword(s):  
Corrosion Resistance ◽  
Surface Layer ◽  
Simulated Body Fluid ◽  
Body Fluid ◽  
Glass Network ◽  
In Vitro Experiments ◽  
High Corrosion Resistance ◽  
Before And After ◽  
O 19

Among bioceramics materials, bioglasses which exhibits either a bioactive or resorbable behavior has been studied for many applications, such as bone substitutive and regeneration. When in contact with body fluid, the bioglasses can induce the formation of a hydroxyapatite surface layer. In this paper, we studied the bioactivity of a bioglass containing 48 wt %SiO2, 27 wt% Na2O, 19 wt % CaO and 6 wt %P2O5. After fusion and annealing, the samples were immersed in SBF for different periods, up to 14 days. The samples were characterized through XRD, DRIFT and SEM before and after bioactivity experiments. The overall results suggest the formation of a surface layer of consisting of hydroxyapatite, which was crystallized within seven days after in vitro experiments, leading to a suitable bioactivity. Moreover, the samples showed a glass network with high cohesion due to calcium addition, leading to materials with high corrosion resistance.

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