Microstructure and properties of Cu–Ni–Si–Zr alloy after thermomechanical treatments

Xiao, Xiangpeng; Xiong, Baiqing; Wang, Qiang-Song; Xie, Guoliang; Peng, Lijun; Huang, Guo-Xing

doi:10.1007/s12598-013-0024-2

Cited by 40 publications

(11 citation statements)

References 11 publications

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“…The results in this study indicate that an unprecedented combination of high tensile strength, ductility, and conductivity has been achieved along the drawing direction. The tensile strengths and conductivities obtained in this work were significantly improved over previously reported values 14 16 21 22 23 24 25 26 27 28 29 30 (see Fig. 3b ).…”

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confidence: 64%

Increasing strength and conductivity of Cu alloy through abnormal plastic deformation of an intermetallic compound

Han

Lim

Kim

et al. 2016

Sci Rep

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The precipitation strengthening of Cu alloys inevitably accompanies lowering of their electric conductivity and ductility. We produced bulk Cu alloys arrayed with nanofibers of stiff intermetallic compound through a precipitation mechanism using conventional casting and heat treatment processes. We then successfully elongated these arrays of nanofibers in the bulk Cu alloys to 400% of original length without breakage at room temperature using conventional rolling process. By inducing such an one-directional array of nanofibers of intermetallic compound from the uniform distribution of fine precipitates in the bulk Cu alloys, the trade-off between strength and conductivity and between strength and ductility could be significantly reduced. We observed a simultaneous increase in electrical conductivity by 1.3 times and also tensile strength by 1.3 times in this Cu alloy bulk compared to the conventional Cu alloys.

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confidence: 64%

Increasing strength and conductivity of Cu alloy through abnormal plastic deformation of an intermetallic compound

Han

Lim

Kim

et al. 2016

Sci Rep

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“…It is a natural process that efficiently creates crystalline silica and zeolites, among other minerals. 10 Zeolites are the cubic unit cell type of aluminosilicates which contain tetrahedral structures of SiO 4 and AlO 4 . Zeolites with Si/Al values lower and higher than this critical point characterize X and Y compositions, respectively.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of indeno-[1,2-b]-quinoline-9,11(6H,10H)-dione and 7,7-dimethyl-10-aryl-7,8-dihydro-5H-indeno[1,2-b]quinoline-9,11(6H,10H)-dione derivatives in presence of heterogeneous Cu/zeolite-Y as a catalyst

2022

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“…For instance, the addition of Cr can improve the precipitation kinetics and accelerate the formation rate of precipitates [ 6 , 7 ]. Moreover, the microelements of Al [ 8 , 9 ], Ti [ 10 ], Zr [ 11 ], P [ 12 ] and Mg [ 13 ] have been identified to effectively enhance the physical properties of Cu-Ni-Si-based alloys. More importantly, Co shares the same effect on the precipitation process.…”

Section: Introductionmentioning

confidence: 99%

Effects of Co Addition on the Microstructure and Properties of Elastic Cu-Ni-Si-Based Alloys for Electrical Connectors

et al. 2021

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The properties and microstructure evolution of quaternary Cu-Ni-Co-Si alloys with different Ni/Co mass ratios were investigated. The microstructure and morphological characteristics of the precipitates were analyzed by using electron backscatter diffraction (EBSD), transmission electron microscopy (TEM) and high-resolution transmission electron microscopy (HRTEM). The mechanical properties and conductivity of the alloys were significantly improved after the addition of Co. The grains presented an obvious growth trend with an increase in Ni/Co mass ratios, and the appropriate Co accelerated the recrystallization process. The δ-(Ni, Co)2Si phases of the Cu-Ni-Co-Si alloys and δ-Ni2Si phases of the Cu-Ni-Si alloys shared the same crystal structure and orientation relationships with the matrix, which had two variant forms: δ1 and δ2 phases. The precipitates preferential grew along with the direction of the lowest energy and eventually exhibited two different morphologies. Compared with that of the Cu-Ni-Si alloy, the volume fraction of precipitates in the alloys with Co was significantly improved, accompanied by an increase in the precipitated phase size. The addition of Co promoted the precipitation of the precipitated phase and further purified the matrix. A theoretical calculation was conducted for different strengthening mechanisms, and precipitation strengthening was the key reinforcement mechanism. Moreover, the kinetic equations of both alloys were obtained and coincided well with the experimental results.

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Microstructure and properties of Cu–Ni–Si–Zr alloy after thermomechanical treatments

Cited by 40 publications

References 11 publications

Increasing strength and conductivity of Cu alloy through abnormal plastic deformation of an intermetallic compound

Increasing strength and conductivity of Cu alloy through abnormal plastic deformation of an intermetallic compound

Synthesis of indeno-[1,2-b]-quinoline-9,11(6H,10H)-dione and 7,7-dimethyl-10-aryl-7,8-dihydro-5H-indeno[1,2-b]quinoline-9,11(6H,10H)-dione derivatives in presence of heterogeneous Cu/zeolite-Y as a catalyst

Effects of Co Addition on the Microstructure and Properties of Elastic Cu-Ni-Si-Based Alloys for Electrical Connectors

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