Optimization of strength, ductility and electrical conductivity of Cu–Cr–Zr alloy by combining multi-route ECAP and aging

Pürçek, G.; Yanar, H.; Demirtas, M.; Alemdağ, Yasin; Shangina, D.V.; Добаткин, С. В.

doi:10.1016/j.msea.2015.09.111

Cited by 127 publications

(37 citation statements)

References 70 publications

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“…[141][142][143][144] In this class of materials, the billets were annealed by solution treatment prior to SPD, and subsequently subjected to aging during SPD, or in the post-SPD nal aging treatment. The temperature of SPD impacts the precipitation kinetics and resultant morphology such as shape, density and size of precipitates.…”

Section: Solid Solutions Over Solution Limit (Type C)mentioning

confidence: 99%

Corrosion of Ultrafine Grained Materials by Severe Plastic Deformation, an Overview

Miyamoto

2016

Mater. Trans.

122

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Corrosion of ultra ne grain (UFG) materials by severe plastic deformation (SPD) is reviewed in light of the existing literature and microstructural change. Fortunately, by holistic survey of the literature, it seems likely that grain re nement by SPD, while enhancing mechanical properties, does not compromise the overall corrosion resistance, and in many case, improve it in comparison with coarse-grained counterparts, although there are some contradictory results within the same materials and same environment. The degree of impact of UFG formation on corrosion is highest in stainless steels followed by aluminum and magnesium alloys whereas it is relatively marginal in pure copper and titanium. The effect of UFG formation by SPD on corrosion is imparted by not only grain re nement, but also other microstructural change occurring commonly in SPD in general and unique to each speci c SPD method. In this review, an attention is paid speci cally to the former case, and this includes shuf ing or redistribution of chemical inhomogeneity into a ner scale, deformation-induced grain boundaries and high internal stress stemming from these grain boundaries. The literature on stress corrosion cracking (SCC) of UFG materials are de nitely insuf cient to nd the general trends, more studies are waited.

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Section: Solid Solutions Over Solution Limit (Type C)mentioning

confidence: 99%

Corrosion of Ultrafine Grained Materials by Severe Plastic Deformation, an Overview

Miyamoto

2016

Mater. Trans.

122

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“…Cu and Cu alloys are widely used because of their excellent electrical and thermal conductivities, outstanding resistance to corrosion, good strength and fatigue resistance, suitable ductility [17][18][19][20]. As the mechanical strength of pure Cu is limited for current engineering applications, Cu alloys as an example CuCrZr are attractive for a number of industrial fields.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Severe Plastic Deformation and Heat Treatment on CuCrZr Alloys

et al. 2017

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CuCrZr alloy was subjected to equal channel angular pressing method, belonging to the severe plastic deformation group, followed by heat treatment under different ageing conditions to optimize mechanical properties of the alloy. Before equal channel angular pressing, CuCrZr alloy was treated by solution annealing at temperature 1020 • C for 1 h. Afterwards, samples were pressed through an equal channel angular pressing die once at room temperature and subjected to artificial ageing under different conditions (200, 400, 450, 480 • C for 30, 60, 90, 120, 150 min). Optimization of the CuCrZr alloy was done through the study of mechanical properties and microhardness as a function of ageing temperature and time considering the progress in microstructural/substructural features.

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“…The Tafel measurement of the Al-Cu-Mn-Mg-Fe alloy before and after the addition of Ce show the same morphology, which is the E-I behavior curve of typical aluminum alloy corrosion. The cathode branch is controlled by the hydrogen evolution reaction and exhibits a linear behavior, and the hydrogen evolution reaction process can be represented by the formula (1) [31]. The anode current density increases as the anode overpotential increases, indicating that the anode process is controlled by the activation process.…”

Section: Corrosion Performancementioning

confidence: 99%

Effect of Ce addition on microstructure, mechanical properties and corrosion behavior of Al-Cu-Mn-Mg-Fe alloy

Tian

Chen

et al. 2020

Mater. Res. Express

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The effects of rare earth Ce on the microstructure, mechanical properties and corrosion behavior of Al-Cu-Mn-Mg-Fe alloys were investigated by means of microstructure analysis, tensile test and electrochemical corrosion test. The research shows that the Al-Cu-Mn-Mg-Fe alloy after low temperature heat treatment mainly contains the S (Al 2 CuMg) phase, the T (Al 20 Cu 2 Mn 3 ) phase, the Al 6 (Mn, Fe) phase and the Al 7 Cu 2 Fe phase, and the rare earth Ce makes the alloy form the new rare earth phase Al8Cu4Ce. The appearance of this phase has a significant refinement effect on the Al 6 (Mn, Fe) phase. Compared with Ce-free, the yield strength and tensile strength of Al-Cu-Mn-Mg-Fe alloy with 0.254 ωt% Ce increased by 7% and 15%, respectively, and the elongation increased from 3.1% to 4.8%. It also has better corrosion resistance, which is represented by the decrease of corrosion current density and positive shift of corrosion potential in Tafel measurement in solutions of different concentrations, and the increase of corrosion impedance in electrochemical impedance spectroscopy test, especially the corrosion current density was reduced by 6.06 μA cm −2 in 3.5% NaCl solution.

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Optimization of strength, ductility and electrical conductivity of Cu–Cr–Zr alloy by combining multi-route ECAP and aging

Cited by 127 publications

References 70 publications

Corrosion of Ultrafine Grained Materials by Severe Plastic Deformation, an Overview

Corrosion of Ultrafine Grained Materials by Severe Plastic Deformation, an Overview

The Effect of Severe Plastic Deformation and Heat Treatment on CuCrZr Alloys

Effect of Ce addition on microstructure, mechanical properties and corrosion behavior of Al-Cu-Mn-Mg-Fe alloy

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