The microstructure and mechanical properties of twinned copper-bismuth films obtained by DC electrodeposition

Kurapova, Olga Yu.; Grashchenko, Aleksandr S.; Archakov, I. Yu.; Голубев, С. С.; Конаков, В. Г.

doi:10.1016/j.jallcom.2020.158007

Cited by 4 publications

(5 citation statements)

References 30 publications

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“…In the study of Zhang et al, the growth of nano twins was related to the preferential growth of (111) copper planes [26]. The presence of preferred twins in copper deposits has improved the mechanical properties in many cases [21–23,25–26]. In this study, its effect on wear properties was noticeable.…”

Section: Resultsmentioning

confidence: 63%

“…In other words, twins can improve the metallurgical properties of the copper layer. The importance of this issue is so great that some studies [19][20][21][22] have investigated the effect of twins and how they are formed in the structure of copper. As the speed of copper deposition increases, the deposition rate of copper atoms on the substrate will increase and the possibility of forming a regular atomic structure will decrease.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, areas with the twinning phenomenon will prevent the easy movement of dislocations and will improve the hardness value and metallurgical properties. Therefore, the existence of twin islands is useful in copper deposits, which is usually seen in cases where the coating and substrate have different crystal structures [22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

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Investigation of electrodeposited copper layer with island twinning structure on Zr substrate

Karimi,

Hadipour,

Araghchi

et al. 2023

Surface Engineering

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In this study, the surface properties of copper layers on a zirconium substrate were investigated. The copper deposits with thicknesses of 25, 50, and 100 μm were formed using the electroplating method. The evaluations of coating thickness, surface morphology, crystallite size, and grain distribution were performed by using the relevant analytical equipment. The results showed that by increasing the thickness of the copper layer, a more uniform cauliflower morphology was obtained. Also, by increasing the thickness of the copper deposit, the crystallite size was decreased from 70 to 20 nanometers and the strain energy was decreased from 2.9 × 10 −3 J to 6.5 × 10 −3 J. The copper layer with a thickness of 100 μm was the most wear resistance compared to other coatings. The highest hardness value, uniform morphology, and more twin islands in different areas were the main reasons for improving the wear resistance of the copper layer with a thickness of 100 μm.

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Section: Resultsmentioning

confidence: 63%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Investigation of electrodeposited copper layer with island twinning structure on Zr substrate

Karimi,

Hadipour,

Araghchi

et al. 2023

Surface Engineering

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“…Figure 10a,b present SEM and EDS images of the worn surfaces of CB and FCB, respectively. Figure 8a indicates that under the initial condition, the soft phase Bi was uniformly dissociated and distributed in a mesh shape at the grain boundary of the copper alloy because Bi is insoluble in copper and tends to segregate on the grain boundary of the copper alloy 3,4,23,24 . During the friction between CB and 304 steel, the microcracks expanded with the mesh Bi and copper alloy grain boundary edges, were delaminated, and eventually peeled off (Figure 10a).…”

Section: Resultsmentioning

confidence: 99%

“…Figure 8a indicates that under the initial condition, the soft phase Bi was uniformly dissociated and distributed in a mesh shape at the grain boundary of the copper alloy because Bi is insoluble in copper and tends to segregate on the grain boundary of the copper alloy. 3,4,23,24 During the friction between CB and 304 steel, the microcracks expanded with the mesh Bi and copper alloy grain boundary edges, were delaminated, and eventually peeled off (Figure 10a). The initial furrow morphology (280 s) of the CB material evolved into slight delamination wear; afterward, serious delamination, adhesion wear and slight furrow wear were formed.…”

Section: Friction Interface Evolutionmentioning

confidence: 99%

Tribological performance optimization and synergistic lubrication evolution of Pb‐free FeS/Cu–Bi composites

Tong

Yin

et al. 2022

Lubrication Science

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The tribological properties of Pb-free FeS/Cu-Bi (FCB) self-lubricating composites were optimised with the Taguchi method. The effects of lubricant content and ball milling time on the anti-friction and wear resistance of FCB composites were investigated. Then the evolution of the friction interface was observed through interrupted microscopy measurement to reveal its synergistic lubrication mechanism. The results showed that the primary and secondary factors that affected the anti-friction and wear resistance of the FCB composites were FeS content, Bi content and ball milling time. The synergistic lubrication mechanism of FCB composites was that FeS could prevent the crack from extending with the continuous Bi mesh and could prevent the matrix with Bi debris from peeling off, which was conducive to the formation of a lubricantrich tribofilm at the friction interface to improve the tribological properties of the composites.

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Antipathogenic copper coatings: electrodeposition process and microstructure analysis

Bigos,

Bugajska,

Kwiecien

et al. 2023

Archiv.Civ.Mech.Eng

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Copper coatings are an important group of decorative-protective materials characterised by high corrosion resistance, excellent thermal and electrical conductivity, which lately gained more significance due to their antimicrobial activity. The main aim of the presented research was to electrodeposit homogenous copper coatings from the non-cyanide electrolyte solution in galvanostatic conditions on steel (1.4024) and nickel (Ni201) substrates, commercially used for surgical instruments. The effect of substrate finishes used in the production line, by shot peening with glass balls, corundum treatment and brushing on the coatings surface formation, was investigated. The substrates’ and coatings’ microstructural properties were analyzed by scanning and transmission electron microscopy, atomic force microscopy, and X-ray diffraction analysis. The current efficiency of the copper reduction on nickel and steel substrates was found to be above 95%. The copper layers adhere to both substrates, except those deposited on a brushed surface. Regardless of the substrate used, they have a nanocrystalline structure with an average crystallite size of 30 nm. Moreover, the coating surface morphology, which affects the nature of interaction with microorganisms, was effectively modified by the appropriate substrate finishing without changing the electrodeposition conditions.

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The microstructure and mechanical properties of twinned copper-bismuth films obtained by DC electrodeposition

Cited by 4 publications

References 30 publications

Investigation of electrodeposited copper layer with island twinning structure on Zr substrate

Investigation of electrodeposited copper layer with island twinning structure on Zr substrate

Tribological performance optimization and synergistic lubrication evolution of Pb‐free FeS/Cu–Bi composites

Antipathogenic copper coatings: electrodeposition process and microstructure analysis

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