2022
DOI: 10.1016/j.intermet.2022.107680
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From corrosion behavior to radiation response: A comprehensive biocompatibility assessment of a CoCrMo medium entropy alloy for utility in orthopedic and dental implants

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Cited by 14 publications
(6 citation statements)
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“…In summary, from the above XPS investigations and literature data [11,18,20], one may conjecture that the good corrosion resistance observed for Co29Cr7W alloys results from the presence in the passive film of both chromium species (i.e., Cr2O3 and Cr(OH)3) in significant amounts and of tungsten oxide species in a much lower amount. Conversely, In summary, from the above XPS investigations and literature data [11,18,20], one may conjecture that the good corrosion resistance observed for Co29Cr7W alloys results from the presence in the passive film of both chromium species (i.e., Cr 2 O 3 and Cr(OH) 3 ) in significant amounts and of tungsten oxide species in a much lower amount. Conversely, for Co21Cr8Mo7W, the XPS results, in correlation with reported data [16,17,19], revealed that the good corrosion behavior of this alloy is mainly due to the synergetic effect of Cr, W and Mo, which are present in the film as Cr 2 O 3 , Cr(OH) 3, WO 3 and MoO 3 .…”
Section: X-ray Photoelectron Spectroscopy Investigationsmentioning
confidence: 67%
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“…In summary, from the above XPS investigations and literature data [11,18,20], one may conjecture that the good corrosion resistance observed for Co29Cr7W alloys results from the presence in the passive film of both chromium species (i.e., Cr2O3 and Cr(OH)3) in significant amounts and of tungsten oxide species in a much lower amount. Conversely, In summary, from the above XPS investigations and literature data [11,18,20], one may conjecture that the good corrosion resistance observed for Co29Cr7W alloys results from the presence in the passive film of both chromium species (i.e., Cr 2 O 3 and Cr(OH) 3 ) in significant amounts and of tungsten oxide species in a much lower amount. Conversely, for Co21Cr8Mo7W, the XPS results, in correlation with reported data [16,17,19], revealed that the good corrosion behavior of this alloy is mainly due to the synergetic effect of Cr, W and Mo, which are present in the film as Cr 2 O 3 , Cr(OH) 3, WO 3 and MoO 3 .…”
Section: X-ray Photoelectron Spectroscopy Investigationsmentioning
confidence: 67%
“…The Cr-2p 3/2 spectra of both types of alloys were fitted with 5 peaks (Figures 4a and 5a). These peaks are attributed to chromium metallic species (Cr 0 ) (BE 547.5 ± 0.2 eV, [13,18]); Cr (III) oxide, most probably present as Cr 2 O 3 species (BE = 575.7 ± 0.2 eV, [13,16]); Cr(OH) 3 species (BE 576.9 ± 0.2 eV, [13,16]); mixed-oxide chromium species (BE 578.2 ± 0.2 eV, [29]); and Cr (VI) oxide, like CrO 3 species (BE 579.5 ± 0.2 eV, [23]). The corresponding relative fractions of the chemical species are shown in the figure insets.…”
Section: X-ray Photoelectron Spectroscopy Investigationsmentioning
confidence: 99%
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“…Additionally, over time pH modification (simply due to food consumption by eating and drinking) and temperature changes (during some diseases or consumption of food) undesirably affect the performance of the introduced medical tools, such as changes in the resonance frequency and/or bandwidth. The presence of saliva in the mouth is the essential carrier in such media, and it will extensively interact with the hosted devices 36 , 37 .…”
Section: Methodsmentioning
confidence: 99%
“…This structure is inversely proportional with regard to mechanical characteristics like bone strength and stiffness [13]. Despite the good properties of the metallic biomaterials used in restorative works and implants, both coated and uncoated [14][15][16], it is still challenging to find suitable materials that present no risk of implant failure [17].…”
Section: Introductionmentioning
confidence: 99%