Corrosion performance of the plasma nitrided 316L stainless steel

Gil, Linda; Brühl, Sonia Patricia; Jiménez, Lorena; León, O.A.; Guevara, R.; Staia, M.H.

doi:10.1016/j.surfcoat.2006.08.081

Cited by 89 publications

(39 citation statements)

References 26 publications

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“…In addition, the CrNzc9-Fe 4 N dual phase structure in the modified layer is another reason for the corrosion resistance reduction of 316L because inhomogeneous microstructures enhance corrosion due to electrolytic cell reaction between these phases. 25 In the case of Ti-6Al-4V, the untreated alloy showed an anodic current with an almost constant value due to presence of a passive TiO 2 film. According to the polarisation curves, although the corrosion current density of the nitrided specimen is lower, the potential is higher than the untreated specimen.…”

Section: Corrosion Propertiesmentioning

confidence: 93%

Corrosion behaviour of Ti DLC deposition on prenitrided 316L stainless steel and Ti–6Al–4V alloy

Yetim

Alsaran

Efeoğlu

2011

Corrosion Engineering, Science and Technology

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316L and Ti-6Al-4V are widely used as biomaterials and materials of various mechanical components. In biomedical applications, they are used to manufacture coronary and pulmonary stents, hip prosthesis, screws and external fixations. However, Cr, Al and V are released from the alloys to the body environment and these ions mix into the blood stream. Release of even small amounts of these ions may cause local irritation of the tissues surrounding the implant. This situation may be prevented by applying suitable surface treatments to the biomaterials. The overall objective of the present paper is to examine the corrosion properties of duplex treated (nitrided and with a diamond-like carbon coating) 316L stainless steel and Ti-6Al-4V alloy. Diamond-like carbon films were deposited on nitrided samples using closed field unbalanced magnetron sputtering system. The corrosion behaviour of duplex treated samples was tested using the potentiodynamic method in ringer's solution at 37uC. The corrosion resistance of duplex treated samples was significantly improved in comparison with the uncoated and single treated samples. In addition, the corroded surfaces were investigated by SEM where small pits were observed on all samples.

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Section: Corrosion Propertiesmentioning

confidence: 93%

Corrosion behaviour of Ti DLC deposition on prenitrided 316L stainless steel and Ti–6Al–4V alloy

Yetim

Alsaran

Efeoğlu

2011

Corrosion Engineering, Science and Technology

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“…Esto podría deberse a que la capa nitrurada, proporciona una interfase de transición gradual entre el recubrimiento DLC y el sustrato, causando una reducción de tensiones y así mejorando la adhesión, como fue reportado por otros autores [23,24].…”

Section: Adhesiónunclassified

Protección de acero para instrumentos quirúrgicos con recubrimientos duros en base carbono tipo DLC

et al. 2018

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RESUMENLos aceros inoxidables martensíticos como el AISI 420 tienen múltiples aplicaciones, entre ellas instrumentos quirúrgicos, donde se requiere buena resistencia al desgaste y a la corrosión. Los tratamientos de modificación superficial, como la nitruración iónica, permiten mejorar las propiedades mecánicas de estos aceros pero afectan su resistencia a la corrosión. Por esta razón, un tratamiento posterior de deposición de recubrimiento tipo DLC ("Diamond Like Carbon", carbono símil diamante) puede ser conveniente. En este trabajo se estudió el comportamiento al desgaste y a la corrosión de muestras dúplex (nitruradas y recubiertas por PACVD) y se compararon con muestras nitruradas, sólo recubiertas, nitruradas y sólo templadas y revenidas. Se analizaron los recubrimientos con espectroscopia Raman y EDS. Se realizaron ensayos de desgaste tipo "pin on disk" y se evaluó la adhesión mediante ensayos de Scratch Test e indentación Rockwell C. Se midió nanodureza con indentador Berkovich. Se llevaron a cabo los ensayos propuestos para instrumentos quirúrgi-cos en la Norma F 1089-02 (prueba de agua hirviendo y de hisopado con sulfato de cobre) y ensayos de niebla salina.Estos recubrimientos tienen una relación I D /I G de 0,8 y bajo contenido de hidrógeno aproximadamente del 20 %. El espesor de los recubrimientos fue de 2 µm y la dureza alcanzó 24 GPa. La capa nitrurada tuvo un espesor de 10 µm. Las muestras dúplex y recubierta presentaron bajo coeficiente de fricción y el volumen desgastado fue indetectable. Además, tuvieron buen comportamiento a la corrosión en el ensayo de niebla salina y en los ensayos propuestos en la Norma ASTM F 1089-02. No obstante, la muestra sólo nitrurada presentó una región corroída en el ensayo de sulfato de cobre y en el de agua hirviendo. La muestra dúplex presentó mejor adhesión que la muestra sólo recubierta en los ensayos de Scratch Test y de indentación Rockwell C. Palabrasclave: DLC coatings, AISI 420, desgaste, corrosión, instrumentos quirúrgicos ABSTRACT Martensitic stainless steels can be used in different applications such as surgical instruments where a good wear and corrosion resistance are required. Surface modification treatments such as nitriding improve the mechanical properties of these steels, however; they affect the corrosion resistance. For this reason, the DLC (Diamond Like Carbon) coatings deposition can be convenient.The wear and corrosion behaviour was studied in duplex samples (nitrided and PACVD coated) and they were compared with nitrided and only coated samples and with those without treatment, only heat treated (quench and tempering). The coatings were analyzed by Raman spectroscopy and EDS. Pin on disk tests were performed and the adhesion was evaluated using Scratch Test and Rockwell C Indentation. The nanohardness was measured with a Berkovich indenter. The corrosion tests for surgical instruments (according to the Standard ASTM F 1089 -02) and Spray Salt Fog tests were carried out.In the DLC coatings, the I D /I G ratio was 0.8 and the hydrogen conten...

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“…Stainless steels, due to the characteristics such as easy availability, lower cost, superb fabrication properties, accepted biocompatibility and high strength, have been employed for the wide range of application, for example, stainless steel 316L is the type, extensively, employed in traumatological temporary devices including fracture plates, screws, and hip nails [53]. The most commonly used stainless steel for implants manufacture is austenitic stainless steel, whose wear resistance is moderately poor and hence, rapid loosening is caused by the large amount of wear particles.…”

Section: Stainless Steelmentioning

confidence: 99%

Aseptic loosening of femoral components – A review of current and future trends in materials used

et al. 2012

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Corrosion performance of the plasma nitrided 316L stainless steel

Cited by 89 publications

References 26 publications

Corrosion behaviour of Ti DLC deposition on prenitrided 316L stainless steel and Ti–6Al–4V alloy

Corrosion behaviour of Ti DLC deposition on prenitrided 316L stainless steel and Ti–6Al–4V alloy

Protección de acero para instrumentos quirúrgicos con recubrimientos duros en base carbono tipo DLC

Aseptic loosening of femoral components – A review of current and future trends in materials used

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