The role of Ag precipitates in Cu–12wt% Ag

Yao, Dongwei; Song, Lunan; Dong, Anping; Wang, L.T.; Zhang, Lei; Meng, Liang

doi:10.1016/j.msea.2012.08.060

Cited by 12 publications

(8 citation statements)

References 16 publications

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“…The more Ag precipitates are formed, the wider Ag/Cu interface is. This transition was thought to be the other cause of the strength behavior [13,14].…”

Section: Introductionmentioning

confidence: 99%

Hot compression deformation behavior and a modified physically-based constitutive model of Cu-6 %Ag alloy

et al. 2016

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In order to reveal the flow characteristics of Cu-6 %Ag alloy on the condition of hot deformation, the isothermal compression experiments are carried out at the temperatures of 973-1123 K under strain rates of 0.01-10 s -1 . The effects of deformation condition on the hot compression deformation behavior are investigated. The low instability strain (e i ) behavior at high strain rate (10 s -1 ) is discussed in this paper. According to the experiment results and analyses, the deformation twinning and inhomogeneous grains are thought to be the possible reasons for low strain cracking. Then, a modified physically based constitutive model is established. The strain for maximum softening rate ðe Ã Þ is quoted in the constitutive equation which is proved that there is a nearly linear relationship between lne Ã and lnZ. What's more, the correlation coefficient (R) and the average absolute relative error (AARE) are used to evaluate the accuracy of the established constitutive model. The values of R and AARE are 0.99612 and 3.47 %, respectively, which show that the modified constitutive model can exactly reveal the flow stress of Cu-6 %Ag alloy.

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“…The more Ag precipitates are formed, the wider Ag/Cu interface is. This transition was thought to be the other cause of the strength behavior [13,14].…”

Section: Introductionmentioning

confidence: 99%

Hot compression deformation behavior and a modified physically-based constitutive model of Cu-6 %Ag alloy

et al. 2016

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“…To avoid such occurrence, intermediate heat treatments are used to relax the strained polycrystalline metals. 41,43…”

Section: Processing Methodsmentioning

confidence: 99%

“…In this state, appropriate heat treatments can cause the Ag precipitate formation. Yao et al 41 successfully produced Ag precipitates by annealing the ingots of Cu-12wt%Ag for 4 h at 450 °C and 700 °C. After drawing, the refined precipitates caused the drawn wires to have a tensile strength of 1450 MPa.…”

Section: Microstructurementioning

confidence: 99%

“…Precipitate formation in Cu-6wt%Fe 89 and Cu-12wt%Ag. 41 Fe precipitate particles (a) turn into elongated filaments (b) compliantly at deformation levels of η = 8.0. Micrographs (c) and (d) show the formation of Ag precipitates in Cu-12wt%Ag wires annealed at 700 °C and 450 °C for 4 h followed by rapid cooling, respectively (images reproduced with permission of the copyright owner).…”

Section: Microstructurementioning

confidence: 99%

“…14 Literature contains studies in which forging, drawing, extrusion, rolling, isostatic pressing, swaging, and high-pressure torsion are employed either individually or in combination in an ordered sequence. 2,26,[41][42][43][44] Here, matrix and reinforcing phases are refined together in the dendritic structure, for which this technique is also referred to as in-situ processing. The primary purpose is to encourage fibrous structure in the microstructure.…”

Section: Cast-and-deform In-situ Techniquementioning

confidence: 99%

See 2 more Smart Citations

Deformation processed high strength high conductivity Cu and Al matrix composite wires: An introductory review

Zafar

Nair

2022

Proceedings of the Institution of Mechanical Engineers, Part L:

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Deformation processed wires are used in the fields which demand the combination of contradictory properties such as mechanical strength and electrical conductivity. For the last 4–5 decades, scientists have focused on fabricating Cu and Al matrix wires using various plastic deformation techniques. While the high electrical conductivity is ensured through mentioned elements, the strength is achieved by orderly employment of plastic deformation and various heat treatments for basically achieving microscale filamentary structure of reinforcing elements. However, the strict selection criteria of starting materials and contradicting nature of processing regime and expected properties require proper knowledge of materials-microstructure and fabrication-property correlations. This paper summarizes the manufacturing methods, processing parameters-microstructure interactions, consequential mechanical and electrical properties and finally, current, and potential applications of deformation processed bi-metallic composite wires. It will help engineers, through provided comparative analysis, choose appropriate processing routes and starting materials for the realization of high strength/conductivity wires as well as guide what to expect in terms of targeted properties.

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Effect of Ultra-High Deformation Process on Micro-Structure and Properties of Cu-0.7 wt.% Ag Wires

Wang

Yuan-wang

Yao

2022

The Minerals, Metals &Amp; Materials Series

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The role of Ag precipitates in Cu–12wt% Ag

Cited by 12 publications

References 16 publications

Hot compression deformation behavior and a modified physically-based constitutive model of Cu-6 %Ag alloy

Hot compression deformation behavior and a modified physically-based constitutive model of Cu-6 %Ag alloy

Deformation processed high strength high conductivity Cu and Al matrix composite wires: An introductory review

Effect of Ultra-High Deformation Process on Micro-Structure and Properties of Cu-0.7 wt.% Ag Wires

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