The phase transformation and its effects on properties of a Cu−0.12 wt% Zr alloy

Peng, Lijun; Xie, Haofeng; Huang, Guojie; Li, Yanfeng; Yin, Xiang; Feng, Xue; Mi, Xujun; Yang, Zhen

doi:10.1016/j.msea.2015.02.077

Cited by 46 publications

(21 citation statements)

References 21 publications

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“…As states above, the agglomeration of zirconium atoms on dislocations results in decreasing their movement and the formation of a more dispersed structure. During subsequent heating, Zr rich zones transform to the Cu 5 Zr particles [25]. This transformation causes a deceleration of grain boundary movement and enhances the stability of structure.…”

Section: Resultsmentioning

confidence: 99%

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

Shangina

Бочвар

Gorshenkov

et al. 2016

Materials Science and Engineering: A

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Section: Resultsmentioning

confidence: 99%

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

Shangina

Бочвар

Gorshenkov

et al. 2016

Materials Science and Engineering: A

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“…Zhuo et al studied the phase transition process of Cu-Y alloys during the annealing treatment and found that the heterogeneous nucleus can facilitate the formation of the Cu 5 Y phase [18]. Peng et al studied the formation process of the Cu 5 Zr phase, drawing a conclusion that the Cu 5 Zr phase was formed by the accumulation of Zr atomic layers, i.e., the Cu 5 Zr phase precipitated in the nucleation of Zr-rich atomic clusters [15]. In the research on Cu-Cr-Zr alloys containing Y and La, Pan et al found Cu, Zr, Y, and La in the precipitated phase at the grain boundaries of the alloy.…”

Section: Resultsmentioning

confidence: 99%

“…There are many forms of Cu m Zr n phase in cast Cu-Zr alloys [14]. Peng et al studied the phase transition in the Cu-0.12Zr (wt.%) alloy and its effect on the mechanical properties, finding that there was a discotic Cu 5 Zr phase in the alloy [15]. Huang et al thought that the Cu m Zr n phase formed in the Cu-0.31Cr-0.21Zr (wt.%) alloy was a Cu 51 Zr 14 phase [16].…”

Section: Introductionmentioning

confidence: 99%

Effects of Zr, Y on the Microstructure and Properties of As-Cast Cu-0.5Y-xZr (wt.%) Alloys

Wang

Liu

et al. 2019

Metals

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In this paper, the microstructure and properties of as-cast Cu-Y-Zr alloys with different Zr content were studied in order to investigate whether the precipitates in copper alloys would interact with each other by adding Y and Zr simultaneously. As-cast Cu-0.5Y-xZr (wt.%, x = 0.05 and 0.1, nominal composition) alloys were prepared by vacuum melting in this study. Scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), and transmission electron microscopy (TEM) were used to observe the microstructure of the alloys. The mechanical properties of the alloys were tested by universal material testing machine at room temperature. The effects of Zr content on the microstructure and mechanical properties of the alloys were explored. As shown by the research results, in the as-cast Cu-0.5Y-xZr (wt.%) alloys, the precipitated phase was the Cu5Y/Cu5Zr phase and ranged from 10 nm to 70 nm in size; when the Zr content increased from 0.05 wt.% to 0.1 wt.%, both the tensile strength and elongation rate of the alloys increased; when the Zr content was 0.1 wt.%, the tensile strength was 225 MPa and the elongation rate was 22.5%.

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“…The precipitates are identified as Cu 5 Zr according to interplanar spacing and the FFT image in Fig. 5b , which is consisted with Peng et al 27 and Wang et al 28 . As depicted in Fig.…”

Section: Discussionmentioning

confidence: 98%

A promising structure for fabricating high strength and high electrical conductivity copper alloys

Kang

Chen

et al. 2016

Sci Rep

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To address the trade-off between strength and electrical conductivity, we propose a strategy: introducing precipitated particles into a structure composed of deformation twins. A Cu-0.3%Zr alloy was designed to verify our strategy. Zirconium was dissolved into a copper matrix by solution treatment prior to cryorolling and precipitated in the form of Cu5Zr from copper matrix via a subsequent aging treatment. The microstructure evolutions of the processed samples were investigated by transmission electron microscopy and X-ray diffraction analysis, and the mechanical and physical behaviours were evaluated through tensile and electrical conductivity tests. The results demonstrated that superior tensile strength (602.04 MPa) and electrical conductivity (81.4% IACS) was achieved. This strategy provides a new route for balancing the strength and electrical conductivity of copper alloys, which can be developed for large-scale industrial application.

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The phase transformation and its effects on properties of a Cu−0.12 wt% Zr alloy

Cited by 46 publications

References 21 publications

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

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

Effects of Zr, Y on the Microstructure and Properties of As-Cast Cu-0.5Y-xZr (wt.%) Alloys

A promising structure for fabricating high strength and high electrical conductivity copper alloys

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