Corrosion behavior of HA-316L SS biocomposites in aqueous solutions

Robin, A.; Silva, Gilbert; Rosa, Jorge Luiz

doi:10.1590/s1516-14392013005000136

Cited by 19 publications

(12 citation statements)

References 12 publications

(17 reference statements)

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“…In the only other relevant report, Trelewicz 21 reported a single set of polarization scans for SLM 316L relative to wrought 316L, suggesting that SLM 316L presented 'reduced passivity' in 0.1 M HCl. However the data reported in that study does not resemble the typical polarization response of 316L in 0.1 M HCl, 24,25 the polarization response being possibly influenced by crevice corrosion. Furthermore, more extensive corrosion data or its reproducibility (either by duplicate data or testing, or by the presentation of data with error analysis or error bars) has not been presented in any works to date.…”

contrasting

confidence: 55%

On The Corrosion and Metastable Pitting Characteristics of 316L Stainless Steel Produced by Selective Laser Melting

Sander

Thomas

Reyes-Cruz

et al. 2017

J. Electrochem. Soc.

284

126

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The austenitic stainless steel 316L was additively manufactured using Selective Laser Melting (SLM). The corrosion characteristics of the additively manufactured (3D printed) specimens were investigated by both potentiodynamic and potentiostatic techniques. The production parameters were deliberately varied during SLM, to produce 316L specimens fabricated by different laser scan speed (in the range of 860-1160 mm/s) and laser power (in the range of 165-285 W). The fabrication parameters were found to influence the porosity of the resulting specimens. The pitting potentials, metastable pitting rates and repassivation potentials of the 3D printed specimens are presented herein as a function of the laser scan speed and laser power, and also discussed in the context of specimen porosity. The corrosion characteristics of the 3D printed 316L were also compared with wrought 316L, revealing higher pitting potentials and lower rates of metastable pitting for most SLM 316L specimens, the related concepts of which are discussed herein. Stainless steels are a critically important class of alloy in several industries.1 The corrosion resistance of stainless steel (SS) is attributed to the presence of alloyed chromium (> ∼11 wt%), enabling the formation of a chromium oxide (Cr 2 O 3 ) based passive film upon the metal surface.1-3 The addition of elements such as nickel, nitrogen, molybdenum, carbon, aluminum, copper, sulfur and selenium can modify the corrosion resistance, strength, ductility, machinability, and the phases present (and their stability) in stainless steels.1-3 The types of stainless steel are most conveniently categorized according to their microstructure, classified as: austenitic, martensitic, ferritic and austenoferritic (duplex). Such structures are realized by specific alloying additions and metallurgical processing.1-4 Additive manufacturing has recently been explored as a means to produce SS components in net shape, 5-7 circumventing the requirement of traditional manufacturing methods such as casting, rolling, welding, machining, forging, etc. Selective Laser Melting (SLM) is one such additive manufacturing method, which can produce dense products by laser processing of metal powders. In SLM, metal powder layers are successively fused in a layer-by-layer manner into the requisite 3D structure, employing a fiber laser. [8][9][10][11] The metallic component in essence is therefore 3D printed into the requisite shape, by additive manufacturing processes like SLM. The process takes place in chamber of well-controlled inert atmosphere (either nitrogen or argon). The primary parameters that govern the microstructure of a 3D printed specimen are the laser power and the laser scan speed, as they influence the thermal gradients and growth rate of the metal at the solid-liquid interface (in the melt pool). 12 The porosity that may develop in 3D printed specimens depends upon the heating and cooling rates of the melt pool. 13 The laser scan speed relates to the duration for which the laser beam is in contact with ...

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contrasting

confidence: 55%

On The Corrosion and Metastable Pitting Characteristics of 316L Stainless Steel Produced by Selective Laser Melting

Sander

Thomas

Reyes-Cruz

et al. 2017

J. Electrochem. Soc.

284

126

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“…The cathodic polarization curve was associated with a reduction of oxygen that was dissolved while at lower values of potentials and related to reduction of water. It was observed that the increase of HA content in 316L improved the corrosion resistance of stainless steel composites [31,32]. In the current investigation, it was made clear that chromium diffused from 316L to HA.…”

Section: Electrochemical Analysissupporting

confidence: 47%

“…However, the corrosion current densities for both of the FGMs were in the order of 10 -6 or less. That is characteristic of high-quality corrosion resistant materials for bioimplants (Table 2) [32]. The corrosion potential was found in the negative region for both FGMs.…”

Section: Electrochemical Analysismentioning

confidence: 78%

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Interfacial diffusion reaction and mechanical characterization of 316L stainless steel-hydroxyapatite functionally graded materials for joint prostheses

Akmal

Khalid

Hussain

2015

Ceramics International

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“…It was stated that these materials exhibit high corrosion resistant in Ringer's solution with corrosion current density in the order of 10 -6 A•cm -2 . The corrosion resistance decreases with increasing HA content [9].…”

Section: Introductionmentioning

confidence: 92%

Corrosion resistance of sintered AISI 316L-hydroxyapatite biomaterials in Ringer's solution

Szewczyk-Nykiel

2018

MATERIAL ENGINEERING

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AISI 316L-hydroxyapatite biomaterials were produced by the conventional powder metallurgy technology. In the case of materials such as these, proper and long-term functioning in the aggressive environment of body fluids is very important. Therefore, the purpose of this study was to determine the effect of hydroxyapatite content and sintering temperature on the properties including sintered density, open porosity, and in particular corrosion resistance of AISI 316L-hydroxyapatite biomaterials in Ringer's solution. The measurement of sintered density and open porosity of studied materials was carried out by the water-displacement method. The corrosion behaviour was studied by open circuit potential measurement and potentiodynamic polarization method. It was stated that the properties of studied biomaterials are dependent on chemical composition of powders mixture and sintering temperature. The results showed that higher sintering temperature ensured to obtain lower values of corrosion current density and corrosion rate, and higher value of polarization resistance. The addition of 5 wt % hydroxyapatite provided to a significant improvement of corrosion resistance in Ringer's solution in comparison to AISI 316L steel, while a slight decrease in corrosion resistance was observed for AISI 316L-10 wt % hydroxyapatite biomaterials. Passivation ability and better corrosion resistance indicate that sintered at 1240°C AISI 316L-5 wt % hydrohyapatite biomaterials is more appropriate for long-term functioning implants than AISI 316L steel. This biomaterial possessed good densification and the best corrosion resistance among all studied materials, as evidenced by the lowest corrosion current density and corrosion rate combined with the highest polarization resistance.

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Corrosion behavior of HA-316L SS biocomposites in aqueous solutions

Cited by 19 publications

References 12 publications

On The Corrosion and Metastable Pitting Characteristics of 316L Stainless Steel Produced by Selective Laser Melting

On The Corrosion and Metastable Pitting Characteristics of 316L Stainless Steel Produced by Selective Laser Melting

Interfacial diffusion reaction and mechanical characterization of 316L stainless steel-hydroxyapatite functionally graded materials for joint prostheses

Corrosion resistance of sintered AISI 316L-hydroxyapatite biomaterials in Ringer's solution

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