Effect of multipass thermomechanical processing on the corrosion behaviour of biomedical Co–Cr–Mo alloys

Yamanaka, Kazushi; Mori, M.; Kartika, Ika; Anwar, Moch. Syaiful; Kuramoto, Kei; Sato, Sadao; Chiba, Akihiko

doi:10.1016/j.corsci.2018.12.009

Cited by 29 publications

(6 citation statements)

References 57 publications

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“…13,14 The spontaneous compact oxide layer formation on the surface of implant alloys such as CoCrMo, which is mainly composed of Cr 2 O 3 , considerably inhibits the release of metal ions during contact with human physiological fluids and tissues. 14,15 However, the dynamic conditions of the human body trigger the mechanical abrasion of the oxide film on metallic implant materials and then accelerate corrosion with the release of metal ions and oxide complexes in vivo. 1 Complex oxide films exhibiting n-or p-type semiconductor characteristics and other atomic defects are susceptible to localized degradation such as pitting or crevice attacks due to interactions with aggressive ions such as Cl − , protein adsorption, or protein-metal complex detachment.…”

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confidence: 99%

“…6,16,17 The atomic bonding of proteins to various metal atoms in implant oxide layers strongly depends on the surface chemistry of the oxide layer including the chemical composition, crystallinity, and defect density. 2,10 Different groups have studied the adsorption mechanisms of protein molecules on solid surfaces as well as the electrochemical interactions between protein molecules and implant surfaces and the corresponding corrosion mechanisms by infrared and Raman spectroscopies, 18,19 ellipsometry, 20,21 quartz crystal microbalance, [22][23][24] atomic force microscopy (AFM), [25][26][27][28][29] scanning tunnelling microscopy (STEM), 30,31 transmission electron microscopy (TEM), 32,33 X-ray photoelectron spectroscopy (XPS), [34][35][36] simulation studies, 37,38 electrochemical measurements, 4,5,15,16,39 and scanning Kelvin probe force microscopy (SKPFM). 12,26 The concept of measuring the difference between the work function energies (WFEs) of two materials was initially established by Lord Kelvin 40 and was physically extended to a Kelvin or capacitive probe and then improved by some researchers.…”

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confidence: 99%

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Albumin Protein Adsorption on CoCrMo Implant Alloy: Impact on the Corrosion Behaviour at Localized Scale

Rahimi¹,

Offoiach²,

Baert³

et al. 2022

J. Electrochem. Soc.

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The protein adsorption and both its conformational arrangements and electrochemical interactions on the surface of metallic biomaterials has an immense impact on corrosion/biodegradation and biocompatibility of implantable metals. In this study, we used scanning Kelvin probe force microscopy (SKPFM) to reveal the synergistic effect of various bovine serum albumin (BSA) concentrations and overpotential conditions on BSA protein adsorption mechanisms and its influence on the corrosion behaviour of the CoCrMo alloy in phosphate-buffered saline solution. Electrochemical measurements showed that CoCrMo alloy was more resistant to corrosion in the 2 g L−1 BSA protein medium than in the 0.5 g L−1 one. The SKPFM analysis revealed a lower surface potential on the regions where BSA was adsorbed forming clusters, than on the un-covered CoCrMo substrate. When the surface overpotential and the protein concentration were increased from the OCP to +300 mV vs. Ag/AgCl and from 0.5 to 2 g L−1, respectively, on both protein covering and surface potential were increased. Field emission scanning electron microscopy indicated that localized corrosion eventually occurred at the BSA protein/substrate interface owing to the adsorption of counterions and the difference between the surface potential values.

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confidence: 99%

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Albumin Protein Adsorption on CoCrMo Implant Alloy: Impact on the Corrosion Behaviour at Localized Scale

Rahimi¹,

Offoiach²,

Baert³

et al. 2022

J. Electrochem. Soc.

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“…7b, c, respectively). Previously, the dissolution of cobalt has been observed in the passivation process of Co-Cr-based alloys [53][54][55][56] . Further, Fig.…”

Section: Surface Chemistrymentioning

confidence: 99%

Corrosion mechanism of an equimolar AlCoCrFeNi high-entropy alloy additively manufactured by electron beam melting

et al. 2020

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High-entropy alloys (HEAs) have emerged as a class of structural alloys with various attractive properties, and their application in additive manufacturing, which enables unprecedented thermal history and geometrical complexity, is promising for realising advanced materials. This study investigates the corrosion behaviour and passive film characteristics of an equimolar AlCoCrFeNi HEA additively manufactured by electron beam melting (EBM). Potentiodynamic polarisation in a 3.5 wt% NaCl solution revealed that the bottom part of the EBM specimen shows better corrosion performance than a conventionally prepared cast specimen in terms of both corrosion and passivation current density, while a continuous increase in the current density without any apparent passivity was observed during the anodic polarisation of the top part. The electrochemical impedance spectroscopic study indicated significant differences in the passive film characteristics between the specimens, and revealed an enhanced chargetransfer resistance and the formation of a more protective passive film of the bottom part. The elemental redistribution, in particular, the enrichment of Cr in the B2 phase during the post-melt high-temperature exposure of the alloy during EBM, was responsible for the improved stability of the passive film, retarding the selective dissolution of the B2 phase in the bottom part. These findings indicate that the microstructural evolution caused by 'in situ annealing' during the EBM process significantly influences the corrosion behaviour of the HEA.

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“…However, stress corrosion cracking, which cannot be prevented in 316L stainless steel, can be triggered by the combined effect of tensile stress and a Cl-rich environment such as human body fluid, resulting in an undesirable sudden failure of the implant under stresses [ 6 ]. Moreover, although Co–Cr-based alloys have a higher corrosion resistance compared to 316L stainless steels in human body fluid, some undesirable ions such as Cr and Co are released due to wear and corrosion [ 7 ]. There have been reports of Co exhibiting carcinogenicity in many animal researches and cases of neurological symptoms in patients after implantation.…”

Section: Introductionmentioning

confidence: 99%

A state-of-the-art review of the fabrication and characteristics of titanium and its alloys for biomedical applications

et al. 2021

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Commercially pure titanium and titanium alloys have been among the most commonly used materials for biomedical applications since the 1950s. Due to the excellent mechanical tribological properties, corrosion resistance, biocompatibility, and antibacterial properties of titanium, it is getting much attention as a biomaterial for implants. Furthermore, titanium promotes osseointegration without any additional adhesives by physically bonding with the living bone at the implant site. These properties are crucial for producing high-strength metallic alloys for biomedical applications. Titanium alloys are manufactured into the three types of α, β, and α + β. The scientific and clinical understanding of titanium and its potential applications, especially in the biomedical field, are still in the early stages. This review aims to establish a credible platform for the current and future roles of titanium in biomedicine. We first explore the developmental history of titanium. Then, we review the recent advancement of the utility of titanium in diverse biomedical areas, its functional properties, mechanisms of biocompatibility, host tissue responses, and various relevant antimicrobial strategies. Future research will be directed toward advanced manufacturing technologies, such as powder-based additive manufacturing, electron beam melting and laser melting deposition, as well as analyzing the effects of alloying elements on the biocompatibility, corrosion resistance, and mechanical properties of titanium. Moreover, the role of titania nanotubes in regenerative medicine and nanomedicine applications, such as localized drug delivery system, immunomodulatory agents, antibacterial agents, and hemocompatibility, is investigated, and the paper concludes with the future outlook of titanium alloys as biomaterials. Graphic abstract

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Effect of multipass thermomechanical processing on the corrosion behaviour of biomedical Co–Cr–Mo alloys

Cited by 29 publications

References 57 publications

Albumin Protein Adsorption on CoCrMo Implant Alloy: Impact on the Corrosion Behaviour at Localized Scale

Albumin Protein Adsorption on CoCrMo Implant Alloy: Impact on the Corrosion Behaviour at Localized Scale

Corrosion mechanism of an equimolar AlCoCrFeNi high-entropy alloy additively manufactured by electron beam melting

A state-of-the-art review of the fabrication and characteristics of titanium and its alloys for biomedical applications

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