Achieving High Strength and High Conductivity of Cu-6 wt%Ag Sheets by Controlling the Aging Cooling Rate

Zhang, Zhongyuan; Ru, Yadong; Zuo, Tingting; Xue, Jiangli; Wu, Yue; Gao, Zhaoshun; Liu, Yongsheng; Xiao, Liye

doi:10.3390/ma16103632

Cited by 2 publications

(2 citation statements)

References 35 publications

(51 reference statements)

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“…However, as there are more and more demanding requirements regarding mechanical properties of certain products it turns out that pure copper is not always sufficient as its mechanical properties are limited 1 , 2 . These are, among others but not limited to, electromagnet windings 3 , 4 , medical equipment 5 , heat exchangers 6 , 7 or automotive industry applications 8 .…”

Section: Introductionmentioning

confidence: 99%

Prospective cold metal working and analysis of deformation susceptibility of CuMg alloys with high magnesium content

Strzępek,

Zasadzińska

2024

Sci Rep

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Metal alloys designated for cold metal working exhibit much higher strength properties than pure materials due to solid-solution hardening. However, with the increase of mechanical properties its plasticity and workability decreases. Constant development and demand in this area has led to research on many copper alloys, such as copper alloys with high content of magnesium which were never tested before. The limitations regarding cold metal working of CuMg alloys is the main objective of this paper. Here we show that the tested materials exhibit much higher mechanical properties than currently used as electric conductors and carrying-conducting equipment materials such as pure copper, aluminum, M63 brass or CuNiSi alloy. The results were obtained using Hollomon relation, Considére criterion, Gubkin method and hardness measurements. It lead to assessing the prospective cold metal working of CuMg alloys with 2 wt% of magnesium up to 4 wt% of magnesium. The test range included upsetting with 10–50% of cold deformation. It provided the results on evolution of mechanical properties and deformability of tested alloys. Additional information was provided based on the alloys subjected to 50% of strain. The results have proven that as the amount of magnesium increased so did the assessed values, however, it was also linked with increasing friction coefficient. Measured hardness was 2 times higher and calculated Ultimate Tensile Strength (UTS) was even 2.5 times higher in reference to pure copper in the as-cast state. However, with magnesium content at 3.6 wt% or higher, the elevated amount of α + β phase causes brittleness making it impossible to subject these materials to cold metal working processes. We anticipate our assay to be a starting point for more sophisticated models and experimental research concerning cold metal working processes of CuMg alloys of high-strength, which may lead to developing novel and promising set of alloys.

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Section: Introductionmentioning

confidence: 99%

Prospective cold metal working and analysis of deformation susceptibility of CuMg alloys with high magnesium content

Strzępek,

Zasadzińska

2024

Sci Rep

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“…Copper alloys are widely used in fields such as motors, electronics, machinery, aviation, and aerospace due to their high electrical and thermal conductivity, good corrosion resistance, and ease of production [ 1 , 2 , 3 ]. However, their high manufacturing cost and energy consumption during production limit their extensive applications in certain fields, especially for small-batch production and customized sample production.…”

Section: Introductionmentioning

confidence: 99%

ZrB2–Copper–Graphite Composite for Electric Brushes: Positive Effect of ZrB2 Addition on Composite Properties

Feng,

Ding,

Wang

et al. 2024

Materials

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A ZrB2–copper–graphite composite was produced through powder metallurgy and was tested as a new electric brush material. The aim of this paper was to study the effect of ZrB2 addition on the composite’s properties. Besides its physical properties such as density and resistivity, its mechanical properties, such as hardness, bending strength and wear resistance, were studied. A scanning electron microscope (SEM) was used to study the morphology of the wear surface, and a configured energy-dispersive spectrometer (EDS) was used to research the chemical composition of the samples. The results showed that, with the addition of ZrB2, the composite’s properties such as density, resistivity, hardness, and bending strength improved significantly. Compared with samples without ZrB2, samples with the addition of 4% ZrB2 achieved a hardness of 87.5 HRA, which was improved by 45.8%, and a bending strength of 53.1 MPa, which was increased by nearly 50.0%. Composites with 1% content of ZrB2 showed the best wear resistance under non-conductive friction; however, under conductive friction, composites with 4% content of ZrB2 showed better wear resistance.

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Achieving High Strength and High Conductivity of Cu-6 wt%Ag Sheets by Controlling the Aging Cooling Rate

Cited by 2 publications

References 35 publications

Prospective cold metal working and analysis of deformation susceptibility of CuMg alloys with high magnesium content

Prospective cold metal working and analysis of deformation susceptibility of CuMg alloys with high magnesium content

ZrB2–Copper–Graphite Composite for Electric Brushes: Positive Effect of ZrB2 Addition on Composite Properties

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