Surface Modelling of Nanostructured Copper Subjected to Erosion-Corrosion

Irfan, Osama M.; Mukras, Saad M. S.; Al-Mufadi, Fahad A.; Djavanroodi, F.

doi:10.3390/met7050155

Cited by 9 publications

(3 citation statements)

References 44 publications

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“…This method has been widely applied on different materials [5][6][7]. Many researchers investigated the effect of ECAP on the mechanical properties of various metals [8][9][10][11][12][13][14][15][16]. On the other hand, erosion-corrosion (E-C) is an interaction effect of erosion and corrosion, including liquid erosion and cavitation.…”

Section: Introductionmentioning

confidence: 99%

Effect of Equal Channel Angular Pressing (ECAP) on Erosion-Corrosion of Pure Copper

et al. 2017

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Abstract:During the past few decades, ultrafine-grained materials (UFG) have experienced rapid development. Enhanced mechanical and surface properties, such as strength, ductility and erosioncorrosion (E-C) resistance by refining the grain to ultra-fine/nanometer size has been achieved. The equal channel angular pressing (ECAP) is a popular severe plastic deformation (SPD) method to fabricate UFG bulk materials. In this research, the E-C behavior of commercial annealed pure copper subject to four passes of ECAP have been investigated. Hardness measurement of the copper specimen after four passes of ECAP showed an increase of 200% on the hardness value as compared with annealed condition. Simulated seawater was used as an E-C medium. The effect of different E-C parameters such as time, slurry flow velocity, impact angle, and solid particle concentration on ECAP process is studied. The results showed that ECAP enhances the E-C resistance of copper, and this behavior improves with increasing the pass number. Generally, a 30% rise in resistance to E-C was achieved after four ECAP passes as compared to coarse grain copper for the parameters studied in this work. Optical microscopy was used to examine the microstructure and material removal mechanism of the annealed copper. Scanning electron microscopy (SEM) was used to validate the reduction of grain size due to ECAP process. Furthermore, examination of the surface roughness of the copper at different ECAP passes showed that for the same E-C condition the increment of ECAP passes leads to a smoother surface.

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Section: Introductionmentioning

confidence: 99%

Effect of Equal Channel Angular Pressing (ECAP) on Erosion-Corrosion of Pure Copper

et al. 2017

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“…SSE processed sample at eight passes represented a non-equilibrium grain boundary state, having higher dislocation density than coarse grain material. It may promote the activation energy associated with the dissolution process [21][22][23][24][25]. After twelve passes, the non-equilibrium grain boundaries transformed into equilibrium grain boundaries due to large deformation.…”

Section: Discussionmentioning

confidence: 99%

Effect of strain energy on corrosion behavior of ultrafine grained copper prepared by severe plastic deformation

Rifai

Mujamilah

Bagherpour

et al. 2022

J min metall B Metall

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Effect of strain energy on corrosion behavior of ultrafine-grained (UFG) copper prepared by severe plastic deformation (SPD) was investigated in term of microstructural evolution. The SPD processed material showed an ultrafine-grained (UFG) structure after grain refinement for several time processes, which will affect mechanical and corrosion behavior. homogeneous, can be obtained efficiently through the pressing process or is commonly known as simple shear extrusion (SSE), which one of the SPD techniques. Pure copper was processed by SSE for two, four, eight and twelve passes. The structure of SSE treated sample was observed by laser microscope and transmission electron microscope as well as X-ray diffraction, The corrosion behavior by potentiodynamic polarization curve was observed modified Livingstone solution, 1 M NaCl and sulphuric solution. The structure of SSE processed showed that the first pass of the SSE processed sample showed large deformation by developing the elongated grain and sub-grain structure. By increasing the SSE pass number, the grain shape became equiaxed due to excessive strain. The X-ray broadening related to ultrafine-grained (UFG) structure processed SSE on the copper sample, leading to smaller crystallite size, higher microstrain, and higher dislocation density. The passive film was developed more homogeneous on the material with UFG structure appearance. However, the current density in 1 M NaCl decreased by an increment of pass number due to the dissolution of copper metal. The UFG structure has more boundaries than coarse grain structure, and these phenomena show why Cu dissolve ability influences the current density. The grain boundary behaves as the cathodic site.

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“…Aluminum can be found in a wide range of products, but is particularly prominent in the food packaging sector [12]. Copper is used in many different applications, such as pipe systems, electrical and electronic appliances, but its primary use over the last two centuries has been in electrical systems [13,14]. Zinc is mainly used for galvanizing steel and other metal alloys.…”

Section: Introductionmentioning

confidence: 99%

The Sustainable Management of Metals: An Analysis of Global Research

Aznar-Sánchez

Velasco-Muñoz

Gómez

et al. 2018

Metals

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The objective of this study was to analyze research trends in the field of sustainable management of metals on a global level between 1993 and 2017. To do so, a bibliometric analysis was carried out on a total of 6967 articles. The results revealed the growing interest in this research field, particularly over the last five year-period during which 63% of all articles were published. The three journals in which most articles had been published were the Journal of Cleaner Production, ACS Sustainable Chemistry and Engineering, and Chemsuschem. The countries that published the most articles were China, the United States, India, Germany, and the United Kingdom. A sizeable network of collaboration has been established between countries for the joint publication of studies. The main lines of research have been focused on metal decontamination in water and soil, waste management oriented towards reuse and recycling, and the innovation of processes for cleaner and more efficient production. The results revealed the need for comprehensive studies that integrate different disciplines within the same analytical framework, and to promote research that contributes to the different dimensions of sustainability (environmental, economic, and social).

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Surface Modelling of Nanostructured Copper Subjected to Erosion-Corrosion

Cited by 9 publications

References 44 publications

Effect of Equal Channel Angular Pressing (ECAP) on Erosion-Corrosion of Pure Copper

Effect of Equal Channel Angular Pressing (ECAP) on Erosion-Corrosion of Pure Copper

Effect of strain energy on corrosion behavior of ultrafine grained copper prepared by severe plastic deformation

The Sustainable Management of Metals: An Analysis of Global Research

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