Effect of ECAP processing on distribution of second phase particles, hardness and electrical conductivity of Cu−0.81Cr−0.07Zr alloy

Dalan, Filipe Caldatto; Andreani, Gisele Ferreira de Lima; Travessa, Dilermando Nagle; Faizov, I. A.; Faizova, S. N.; Cardoso, Kátia Regina

doi:10.1016/s1003-6326(21)65789-8

Cited by 21 publications

(2 citation statements)

References 35 publications

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“…It was reported that the average grain sizes after 8 passes may be reduced to about 0.32 µm. Caldatto Dalan et al [36] investigated the effect of ECAP at room temperature and 300 °C on the distribution of the second phase particles and its influence on hardness and electrical conductivity in the commercial Cu−0.81Cr−0.07Zr alloy.…”

Section: Introductionmentioning

confidence: 99%

Effect of ECAP process on deformability, microstructure and conductivity of CuCoNi alloy

Grzegorczyk

Rusz

Snopiński

et al. 2023

J min metall B Metall

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The study concerns the influence of various variants of severe plastic deformation in the Equal Channel Angular Pressing (ECAP) process on the microstructure, microhardness and conductivity of the CuCoNi alloy. The evolution of the microstructure was investigated by microscopic observations and electron back-scattered diffraction (EBSD) in a scanning electron microscope (SEM). Using the Vickers method, tests of microhardness of samples were performed after various variants of the ECAP process. The conductivity was measured with an eddy current device for measuring electrical conductivity based on the complex impedance of the measuring probe. The results indicated the possibility of deformation of CuCoNi alloys in the process of pressing through the ECAP angular channel and developing their microstructure and properties. The method is an effective tool for strengthening the tested copper alloy by refinement of the microstructure. After the first pass, the grain size was reduced by 80%. Increasing the plastic deformation temperature did not significantly affect the obtained level of microstructure fragmentation - the average grain size is approx. 1.4-1.5 ?m. The fragmentation of the microstructure had a negligible effect on the conductivity of the CuCoNi alloy, which after the ECAP process oscillated at the value of 13 MS/m.

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Section: Introductionmentioning

confidence: 99%

Effect of ECAP process on deformability, microstructure and conductivity of CuCoNi alloy

Grzegorczyk

Rusz

Snopiński

et al. 2023

J min metall B Metall

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“…Severe plastic deformation (SPD) can effectively refine the microstructure to submicron or nanoscale by introducing large strains during the deformation process and then dramatically enhance the physical and chemical behaviors of materials, such as strength, fatigue resistance, bio-compatibility, and electrical conductivity [1][2][3][4]. Among them, equal channel angular pressing (ECAP) is one of the most promising methods, which is available to achieve bulk materials with uniform microstructure and can be processed continuously [5].…”

Section: Introductionmentioning

confidence: 99%

Stress Corrosion Cracking of Ultrafine-Grained Ti-2Fe-0.1B Alloying after Equal Channel Angular Pressing

Huang

Jin

Wang

et al. 2023

Metals

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In the present study, the stress corrosion cracking (SCC) of ultrafine-grained (UFG) Ti-2Fe-0.1B prepared by equal channel angular pressing (ECAP) was investigated by a slow strain rate test (SSRT) with in-site electrochemical equipment. In comparison with the atmosphere, results indicated that the mechanical properties of Ti-2Fe-0.1B alloy degraded in the simulated sea water, and the SCC sensitivity of UFG Ti-2Fe-0.1B alloy is much lower than the initial coarse-grained (CG) state. The enhanced SCC resistance of UFG Ti-2Fe-0.1B alloy could be attributed to the mechanical and corrosive aspects simultaneously. First of all, the strength of UFG Ti-2Fe-0.1B alloy is much higher than the CG state, but the elongation to failure of UFG Ti-2Fe-0.1B alloy decreased more than 1.8 times. The UFG sample suffered crack initiation until failure with a relative short time and low plastic deformation, which weakened the effect of corrosion during SSRT. In addition, X-ray photoelectron spectroscopy (XPS) revealed that the thickness of the passivation film of the UFG Ti-2Fe-0.1B alloy is thicker and that the component of the passivation film possesses a higher proportion of TiO2 in the same etched depth, which is beneficial to the corrosion resistance. Furthermore, according to the in-site electrochemical experiment curves, it is believed that the passivation film has a higher repair ability after cracking during SSRT for the UFG Ti-2Fe-0.1B alloy due to the decrease in grain size and the increase in dislocation density.

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Effect of Sm content on microstructure and properties of extruded Mg-6Al-2Sr alloy

Liu,

Li,

Xie

et al. 2024

J. Cent. South Univ.

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Effect of ECAP processing on distribution of second phase particles, hardness and electrical conductivity of Cu−0.81Cr−0.07Zr alloy

Cited by 21 publications

References 35 publications

Effect of ECAP process on deformability, microstructure and conductivity of CuCoNi alloy

Effect of ECAP process on deformability, microstructure and conductivity of CuCoNi alloy

Stress Corrosion Cracking of Ultrafine-Grained Ti-2Fe-0.1B Alloying after Equal Channel Angular Pressing

Effect of Sm content on microstructure and properties of extruded Mg-6Al-2Sr alloy

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