High temperature passive film on the surface of Co–Cr–Mo alloy and its tribological properties

Guo, Fei; Dong, Guangneng; Dong, Lishe

doi:10.1016/j.apsusc.2014.07.086

Cited by 9 publications

(4 citation statements)

References 26 publications

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“…Then, the curves keep stable at the value of 0.07 to 0.08. However, it presents that the curve has an obvious increasing trend under BSA solution, which is contrary with the common view that the COF was theoretically to be lower when the lubricant contained a BSA molecule . Generally, the DLC structure has an important role on the friction.…”

Section: Resultsmentioning

confidence: 63%

“…However, it presents that the curve has an obvious increasing trend under BSA solution, which is contrary with the common view that the COF was theoretically to be lower when the lubricant contained a BSA molecule. 24,25 Generally, the DLC structure has an important role on the friction. In the ambient air, the dangling bonds of the hydrogen-free DLC coating are terminated by O 2 and H 2 O molecules via physical adsorption, and the dangling bonds in the outmost surface will be terminated by forming C-H, C-O, and C-OOH bonds under sliding.…”

Section: Tribological Behaviormentioning

confidence: 99%

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Tribological performance of DLC coating under aqueous solutions

Guo

Dong

Qin

et al. 2019

Lubrication Science

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In the study, the hydrogen‐free diamond‐like carbon (DLC) coating was deposited on the surface of the Co‐Cr‐Mo alloy. Pin‐on‐plate tribotests were performed for the DLC‐coated CoCrMo specimen against un‐doped CoCrMo alloy under bovine serum albumin (BSA), NaCl solution, and distilled water. Results showed that the average coefficient of friction (COF) of the mating system was 0.08 under NaCl and 0.07 under distilled water, respectively. However, the dynamic COF under BSA lubrication was prone to increasing with testing time, and the average COF got to 0.12. The wear morphology of the pin was covered by the carbon transfer layer without BSA lubrication, and the formation of the transfer layer was a dynamic evolution process as wear debris adhesion, continuous transferring, and delamination. Oppositely, the transfer layer was inhibited under BSA lubrication due to the adsorption of the protein layer on the contact interface.

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Section: Resultsmentioning

confidence: 63%

Section: Tribological Behaviormentioning

confidence: 99%

Tribological performance of DLC coating under aqueous solutions

Guo

Dong

Qin

et al. 2019

Lubrication Science

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“…Jenko et al, 31 established that the surface should be free from local reduction of the Chromium concentration in the surroundings of the Cr 23 C 6 carbides, since it could conduce to the initiation of the corrosion mechanism on the surface of the CoCrMo alloy (Figure 4) and they confirmed this finding with further recent studies. 31 In addition, the alloy microstructure also plays a crucial role on the general electrochemical behaviour as demonstrated by Guo et al, 48 Muñoz et al, 48 and Wang et al 50 The mechanism of material degradation is influenced by both mechanical factors and the electrochemical behaviour of the individual material. 15 Electrochemical corrosion represent destructive attack on metals or alloys exercised by the corrosive environment through electrochemical reactions, in which the metal releases electrons and its positive ions get into solution.…”

Section: Corrosion and Electrochemical Propertiesmentioning

confidence: 99%

CoCrMo alloy as biomaterial for bone reconstruction in oral and maxillofacial surgery: A scoping review.

Zuchuat¹,

Cura²,

Manzano³

et al. 2020

J Oral Res

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Antecedentes: La osteointegración ha permitido un gran avance en biomateriales y técnicas, y ha contribuido un mayor uso de implantes dentales. Sin embargo, la existencia de un nivel óseo insuficiente es un problema frecuente y crea una base anatómicamente menos favorable para la colocación de implantes. El primer procedimiento quirúrgico debe comprender la reconstrucción de la altura del hueso alveolar. Las aleaciones de CoCrMo se consideran hoy en día como materiales altamente resistentes a la corrosión y biocompatibles en odontología y, por lo tanto, se ha sugerido como un biomaterial adecuado para la regeneración ósea guiada y la ingeniería de tejidos. Objetivo: Determinar el uso de la aleación CoCrMo para dispositivos implantables en cirugía oral y maxilofacial y discutir sobre el potencial de esta aleación para la regeneración y reparación ósea a través de una revisión de alcance. Material y Métodos: La búsqueda se realizó utilizando varias bases de datos, incluidas PubMed, Thomson Reuters y Scopus. Se seleccionó literatura inglesa relacionada con estudios que informan sobre las propiedades de CoCrMo y los procesos de fabricación y los hallazgos relacionados con las técnicas de formación de huesos. Los datos se compararon cualitativamente. Resultados: Se seleccionaron 90 estudios según los criterios de inclusión. y se reportaron diferentes técnicas de fabricación y sus ventajas relacionadas con propiedades mecánicas, químicas y biocompatibles. Conclusión: Las reacciones tisulares mejoradas de los dispositivos de implante CoCrMo pueden adquirirse mediante la aplicación de nuevas técnicas y modificaciones de la superficie. Además, varios procesos han demostrado mejorar la biocompatibilidad in vitro e in vivo de la aleación CoCrMo para promover la unión, proliferación y diferenciación guiada de las células de siembra.

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“…Investigations of how metal bone implants are worn or destroyed during their operation in a living organism are an interesting area of materials research [8,9,18]. By analyzing changes on implant surfaces, the factors having a decisive impact on the occurrence of a given type of damage can be identified.…”

Section: Introductionmentioning

confidence: 99%

Anslysis of the surface condition of removed bone implants

Mierzejewska¹,

Kuptel²,

Sidun³

2016

EiN

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Article citation info: (*) Tekst artykułu w polskiej wersji językowej dostępny w elektronicznym wydaniu kwartalnika na stronie www.ein.org.pl IntroductionThe development of technology, mainly motorization, and active lifestyle of modern man that are currently being observed make a significant contribution to the growth of various types of injuries of the musculoskeletal system [1]. This is a challenge for reconstructive surgery of the skeletal system, and an effective search for solutions regarding selection of materials for implants and surgical instruments requires the direct cooperation of doctors and engineers [14].Thanks to such cooperation, significant progress has taken place in the field of implantology over the last decade or so. The development of diverse techniques in the field of materials engineering for medical applications, particularly including materials and surface engineering, has expanded our ability to restore complete or partial functionality of parts of the musculoskeletal system [7,[10][11]. Bone implants make it possible to restore destroyed systems and improve a patient's health condition and functionality [15][16][17].Implant is the name given to a foreign body made of one or more biomaterials that may be placed inside of the human body as well as partially or completely under the epithelium, which may remain in the human body for an extended period of time [1,21]. Such longterm contact of an implant with the tissue environment necessitates many properties of implant materials. They must have specific physicochemical and functional properties, which will determine their suitability for application in the context of a bone-implant interface [12,13]. MierzejewskA ŻA, kuPTel P, sidun j. Analysis of the surface condition of removed bone implants. eksploatacja i niezawodnosc -Maintenance and reliability 2016; 18 (1): 65-72, http://dx

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High temperature passive film on the surface of Co–Cr–Mo alloy and its tribological properties

Cited by 9 publications

References 26 publications

Tribological performance of DLC coating under aqueous solutions

Tribological performance of DLC coating under aqueous solutions

CoCrMo alloy as biomaterial for bone reconstruction in oral and maxillofacial surgery: A scoping review.

Anslysis of the surface condition of removed bone implants

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