Influence of microalloying with zirconium on the structure and properties of Cu–Cr alloy after high pressure torsion

Shangina, D.V.; Бочвар, Н. Р.; Gorshenkov, M.V.; Yanar, H.; Pürçek, G.; Dobatkin, S. V.

doi:10.1016/j.msea.2015.10.008

Cited by 37 publications

(12 citation statements)

References 24 publications

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“…Moreover, the precipitation of abundant Cr phases from the substrate delayed the nucleation of Cu 3 Zr phases. This is different from Cu 5 Zr and Cu 4 Zr found by most researchers [ 24 , 25 , 26 , 27 , 28 ] but similar to Cu 51 Zr 14 [ 33 ]. The different reasons may be related to the Zr content in the alloy [ 34 ].…”

Section: Discussioncontrasting

confidence: 87%

“…Peng et al [ 23 ] believed that the precipitation order of Zr phases was as follows: Supersaturated solid solution; Zr atomic cluster; CuCrZr phases; Cu 5 Zr phases. Furthermore, many scholars [ 1 , 24 , 25 , 26 ] have shown that Zr atoms formed Cu 5 Zr phases in the Cu substrate during the ageing precipitation of the alloy. Su et al [ 27 ] pointed out that there were transgranular ordered CrCu 2 (Mg, Zr) (DO3) precipitated phases in the Cu-Cr-Zr-Mg alloy.…”

Section: Introductionmentioning

confidence: 99%

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Influence Mechanism of Ageing Parameters of Cu-Cr-Zr Alloy on Its Structure and Properties

Chen

Hui

et al. 2022

Materials

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The Cu-1.0% Cr-0.1% Zr alloy in a solid solution state was investigated by ageing treatments at different temperatures and holding times. The structure and performance were characterized and tested by using X-ray diffraction (XRD), a transmission electron microscope (TEM), a universal material testing machine, and an eddy conductivity detector. The influence laws of ageing temperature and the holding time on the structures and properties of the Cu-Cr-Zr alloy were analyzed. Results demonstrated that, with the increase in ageing temperature and holding time, the percentage and size of the Cr precipitated phase increased, and the dislocation density decreased. The tensile strength first increased to the peak value and then decreased. The electrical conductivity increased and the amplitude decreased. The tensile strength of the alloy reached the peak (359 ± 2 MPa) after ageing at 450 °C for 60 min, and the electrical conductivity was 91.9 ± 0.7% IACS. In addition, in the ageing precipitation process, the chromium precipitated phase had face-centered cubic structure (FCC) and body-centered cubic structure (BCC) structures, and the FCC Cr phase can be transformed into a BCC Cr phase. FCC Cr, BCC Cr, and Cu3Zr precipitation phases maintained different orientation relationships with the Cu substrate.

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Section: Discussioncontrasting

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Influence Mechanism of Ageing Parameters of Cu-Cr-Zr Alloy on Its Structure and Properties

Chen

Hui

et al. 2022

Materials

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“…Numerous studies have demonstrated the possibility of a significant improvement in physicomechanical properties through using of methods of severe plastic deformation (SPD). Previous studies have shown that if at the 2nd stage of deformation the traditional methods of deformation are replaced, for example by rolling, drawing, by any SPD method, a combination of high strengths of about 688 MPa can be achieved in the alloys with a conductivity of 59% IACS, or 599 MPa at 82% IACS [9][10][11][12][13]. If the combination of ECAP operations with subsequent cold rolling is applied at stage 2, it is possible to obtain more optimal functional properties.…”

Section: Introductionmentioning

confidence: 99%

Effect of cold rolling on microstructure and mechanical properties of Cu-0,5%Cr-0,2%Zr subjected to ECAP with various NUNBERS of passes

2017

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Abstract. The paper studies the effect of the combination of ECAP and cold rolling on the structure, mechanical properties and coefficient of friction of low-alloyed bronzes. It is shown that the use of ECAP together with rolling leads to the formation of a UFG structure and an increase in strength characteristics, while the coefficient of friction is increases. Subsequent heat treatment results in additional hardening by the separation of fine particles, which also reduces the coefficient of friction.

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“…In [14], Cu-Cr-Zr alloys subjected to SPD by HPT (the number of turns N = 5) with subsequent aging resulted in a tensile strength of about 750 MPa with a conductivity of 59% IACS.…”

Section: Introductionmentioning

confidence: 99%

“…In this paper, we investigated the effect of the strain degree which was 2 times greater than in [14] on the strength and electro conductivity of the Cu-0.5Cr-0.2Zr alloy.…”

Section: Introductionmentioning

confidence: 99%

Formation of a state with high strength and electrical conductivity in the Cu-0.5%Cr-0.2%Zr alloy

2017

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Abstract. The effect of severe plastic deformation by high pressure torsion (HPT) and subsequent aging on the formation of a high-strength state with sufficient electrical conductivity in the Cu-0.5%Cr-0.2% Zr (wt.%) alloy is investigated. It is shown that as a result of HPT and subsequent aging a high-strength state with a tensile strength of ≈ 900 MPa and a conductivity of 70% IACS can be formed.

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Influence of microalloying with zirconium on the structure and properties of Cu–Cr alloy after high pressure torsion

Cited by 37 publications

References 24 publications

Influence Mechanism of Ageing Parameters of Cu-Cr-Zr Alloy on Its Structure and Properties

Influence Mechanism of Ageing Parameters of Cu-Cr-Zr Alloy on Its Structure and Properties

Effect of cold rolling on microstructure and mechanical properties of Cu-0,5%Cr-0,2%Zr subjected to ECAP with various NUNBERS of passes

Formation of a state with high strength and electrical conductivity in the Cu-0.5%Cr-0.2%Zr alloy

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