Corrosion Behavior and Mechanical Properties of Ultrafine‐Grained Pure Copper with Potential as a Biomaterial

Gholami, M.; Mhaede, Mansour; Pastorek, Filip; Altenberger, I.; Hadzima, Branislav; Wollmann, Manfred; Wagner, Lothar

doi:10.1002/adem.201500269

Cited by 15 publications

(16 citation statements)

References 57 publications

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“…The observed corrosion products composition through EDS analysis is consistent with published finding on the degradation products of Zn alloys, hence, the possible corrosion products on Zn are ZnO, Zn(OH) 2 , Zn 3 (PO 4 ) 2 , Ca 3 (PO 4 ) 2 , and CaP [ 19 , 57 ]. In addition, the presence of Cu within the corrosion products of the Cu-containing alloys also suggest the dissolution of Cu from the alloy matrix, likely in the form of Cu 2 O [ [58] , [59] , [60] ].…”

Section: Resultsmentioning

confidence: 99%

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The influence of Ca and Cu additions on the microstructure, mechanical and degradation properties of Zn–Ca–Cu alloys for absorbable wound closure device applications

Yang

Balasubramani

Venezuela

et al. 2021

Bioactive Materials

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Novel ternary Zn–Ca–Cu alloys were studied for the development of absorbable wound closure device material due to Ca and Cu's therapeutic values to wound healing. The influence of Ca and Cu on the microstructure, mechanical and degradation properties of Zn were investigated in the as-cast state to establish the fundamental understanding on the Zn–Ca–Cu alloy system. The microstructure of Zn-0.5Ca-0.5Cu, Zn-1.0Ca-0.5Cu, and Zn0.5Ca-1.0Cu is composed of intermetallic phase CaZn 13 distributed within the Zn–Cu solid solution. The presence of CaZn 13 phase and Cu as solute within the Zn matrix, on the one hand, exhibited a synergistic effect on the grain refinement of Zn, reducing the grain size of pure Zn by 96%; on the other hand, improved the mechanical properties of the ternary alloys through solid solution strengthening, second phase strengthening, and grain refinement. The degradation properties of Zn–Ca–Cu alloys are primarily influenced by the micro-galvanic corrosion between Zn–Cu matrix and CaZn 13 phase, where the 0.5% and 1.0% Ca addition increased the corrosion rate of Zn from 11.5 μm/y to 19.8 μm/y and 29.6 μm/y during 4 weeks immersion test.

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Section: Resultsmentioning

confidence: 99%

“…15 – b1, b2 . The corrosion of pure Cu in simulated physiological fluid were investigated in several studies [ 58 , 60 ], which is found to proceed via the following reactions: Oxide formation: 8Cu + 2H 2 O + O 2 → 4Cu 2 O + 4H + +4e − And oxide dissolution: Cu 2 O + 2H 2 O → 2Cu 2+ + H 2 O +2e − …”

Section: Discussionmentioning

confidence: 99%

The influence of Ca and Cu additions on the microstructure, mechanical and degradation properties of Zn–Ca–Cu alloys for absorbable wound closure device applications

Yang

Balasubramani

Venezuela

et al. 2021

Bioactive Materials

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“…The samples with lower corrosion current density, more positively corrosion potential shift and higher impedance had better corrosion resistance properties. 20,21 As Figure 4(a) shown, the impedance of MACP was the highest and the corrosion current was lowest. The MA had the highest corrosion potential but the lower impedance.…”

Section: The Corrosion Resistance Of the Samplesmentioning

confidence: 95%

The effect of composite PHB coating on the biological properties of a magnesium based alloy

Liang

Liu

et al. 2021

J Biomater Appl

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Magnesium alloys have been widely investigated as biodegradable cardiovascular temporal implants due to their better mechanical properties and biocompatibility, but the rapid degradation limited its application. In this study, the anodic oxidation-Cu structure was used to improve the adhesive strength and stability between poly-β-hydroxybutyrate (PHB) and magnesium alloys, and the effects of anodic oxidation magnesium alloys with copper film and PHB film (MACP) on human umbilical vein endothelial cells (HUVECs), blood compatibility and antibacterial properties were investigated in this research. As the result, the MACP structure had a stable structure and better corrosion resistance, and significant antibacterial properties. The coating would not affect the original excellent biocompatibility of the magnesium alloy. It was indicated that MACP was a potential surface modification strategy for vascular stents candidate material.

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“…V súčasnosti sú na materiály, ktoré sa využívajú v medicíne pri operačnej intervencii poškodených tkanív, kladené vysoké požiadavky najmä z pohľadu ich funkčnosti a biokompatibility [1]. Horčík a jeho zliatiny patria k perspektívnym biologicky odbúrateľným materiálom, ktoré podliehajú degradácii v prostredí in vivo za súčasnej pozitívnej odozvy organizmu na vzniknuté korózne produkty až do ich úplného odbúrania.…”

Section: úVodunclassified

Corrosion resistance of the biodegradable ZE41 magnesium alloy treated by unconventional fluoride conversion coating

Drábiková

Fintová

Doležal

et al. 2019

Koroze a Ochrana Materialu

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Magnesium based alloys are very promising material to be used mainly for biodegradable implants in medical applications. However, due to their very low corrosion resistance in the environment of in vivo is their use limited. Increase of the corrosion resistance of magnesium alloys in vivo can be achieved, for example, by a suitable choice of surface treatment while the biocompatibility must be ensured. Fluoride conversion coatings meet these requirements. Unconventional fluoride conversion coating was prepared on ZE41 magnesium alloy by dipping the magnesium alloy into the Na[BF4] salt melt at 450 °C for 0.5; 2 and 8 h. The morphology and thickness of the prepared fluoride conversion coatings were investigated as well as the corrosion resistance of the treated and untreated ZE41 magnesium alloy specimens. The corrosion resistance of the untreated and treated ZE41 magnesium alloy was investigated using electrochemical impedance spectroscopy in the environment of the simulated body fluids at 37 ± 2 °C. The obtained results showed a positive influence of the fluoride conversion coating on the corrosion resistance of the ZE41 magnesium alloy.

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Corrosion Behavior and Mechanical Properties of Ultrafine‐Grained Pure Copper with Potential as a Biomaterial

Cited by 15 publications

References 57 publications

The influence of Ca and Cu additions on the microstructure, mechanical and degradation properties of Zn–Ca–Cu alloys for absorbable wound closure device applications

The influence of Ca and Cu additions on the microstructure, mechanical and degradation properties of Zn–Ca–Cu alloys for absorbable wound closure device applications

The effect of composite PHB coating on the biological properties of a magnesium based alloy

Corrosion resistance of the biodegradable ZE41 magnesium alloy treated by unconventional fluoride conversion coating

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