Fatigue of highly strengthened Cu–Ag alloys

Freudenberger, J.; Klauß, H.; Heinze, Karsta; Gaganov, A.; Schaper, M.; Schultz, L.

doi:10.1016/j.ijfatigue.2007.04.009

Cited by 16 publications

(9 citation statements)

References 36 publications

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“…In previous research, it was reported that the complex form was changed by the concentration of cyanide ion with a fixed concentration of Cu. 33 At the mole ratio of CN − to Cu ion of below 3, Cu(CN) 2 − was an electroactive species, and its concentration was continuously decreased with additional cyanide ion. At a mole ratio of 3, Cu(CN) 3 2− dominates, and it changed to Cu(CN) 4 3− with a higher mole ratio.…”

Section: Resultsmentioning

confidence: 99%

Facile Formation of Cu-Ag Film by Electrodeposition for the Oxidation-Resistive Metal Interconnect

Kim

Lee

Yong

et al. 2012

J. Electrochem. Soc.

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Cu-Ag film could be a candidate to solve the reliability problem in semiconductor interconnection without severe increase in the resistivity. In this research, Cu-Ag film was successfully deposited in cyanide-based electrolyte using electrodeposition, and the effects of the electrolyte composition, applied potential, and the concentration of KAg(CN) 2 were researched. Prior to Cu-Ag electrodeposition, the conditions of Cu electrodeposition in cyanide-based electrolyte were precedently optimized in terms of the film resistivity. Ag was co-deposited in the film with an addition of KAg(CN) 2 in CuCN-based electrolyte, and the atomic concentration of Ag was successfully controlled by varying the concentration of KAg(CN) 2 . The film consisted of three phases; Cu (111), Ag (111), and the alloy. The resistivity of as-deposited Cu-Ag film was significantly higher than that of Cu; however, after annealing at 350 • C in an N 2 atmosphere for 1 hr, we obtained a resistivity comparable to that of Cu. The segregation of Ag atoms at the surface after the annealing was also confirmed, and it resulted in the increase in Ag atomic concentration at the surface and the reduction of surface roughness. Finally, it was confirmed that Cu-Ag film had superior oxidation resistance to Cu.

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Section: Resultsmentioning

confidence: 99%

Facile Formation of Cu-Ag Film by Electrodeposition for the Oxidation-Resistive Metal Interconnect

Kim

Lee

Yong

et al. 2012

J. Electrochem. Soc.

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“…In [27] a similar behavior has been reported for polycrystalline copper. In [28], strengthened Cu-Ag reaches stabilization after less than 20 cycles. As it will be shown in the next section, once the cyclic plasticity parameters have been introduced in the Finite Element model, a sequence of cycles has to be simulated, in order to compute the stress and strain evolution until stabilization.…”

Section: Materials Properties and Modelsmentioning

confidence: 97%

Simplified numerical approach for the thermo-mechanical analysis of steelmaking components under cyclic loading: an anode for electric arc furnace

Moro

Benasciutti

Bona

2017

Ironmaking & Steelmaking

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The need of a strong improvement of productivity and reliability led the adoption of advanced modeling techniques in the design of steelmaking plants components. In this work a procedure based on a finite element simulation is proposed in order to perform a durability analysis of an anode for electric arc furnace. This component undergoes cyclic thermal loads, which also produce a partial melting of one part, meanwhile the other is maintained at almost constant temperature by a cooling system. A simplified, but effective, procedure is developed to take into account steel melting during the heating phase. Considering the cyclic loading conditions, several material cyclic plasticity models, and their effect on the thermal fatigue behavior, are also systematically investigated. The proposed approach permits the component fatigue life to be assessed by a simple and fast uncoupled thermo-mechanical simulation in steady-state conditions. © 2017 Institute of Materials, Minerals and Minin

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“…The constant increasing of dimensions, the construction complexity and installation costs of electromagnets needed to achieve the extremely high intensity magnetic field require novel materials with high operational properties. For instance, the windings of electromagnet coils responsible for generating strong magnetic field impulses should be manufactured from materials characterized by high strength, impact and fatigue resistance and high electrical conductivity properties [1][2][3]. The windings of the electromagnet operate at the cryogenic conditions as a result of causing short term electromagnetic impulses (a fraction of a second), which generate Lorenz forces with very high values directed from the centre of the coil outwards.…”

Section: Introductionmentioning

confidence: 99%

Research on Mechanical and Electrical Properties of Cu-Ag Alloys Designed for the Construction of High Magnetic Field Generators

Kawecki

Sieja-Smaga

Korzeń

et al. 2021

JCME

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The individual sections, wiring and construction of electromagnet windings responsible for strong magnetic field impulses may be one application for hypoeutectic Cu-Ag alloys. High electrical properties and mechanical properties (tensile strength, yield strength, impact strength) as well as high heat, fatigue and rheological resistance are required for these kinds of applications due to the unique nature of such operations (strong vibrations of high frequency and amplitude resulting from Lorenz forces and the possibility of significant and rapid heating from Jule’s heat). The limited solubility of copper and silver in the solid state enables the effective modification of the alloys’ microstructure through heat treatment and further shaping of their high mechanical and electrical properties via cold plastic working. The article presents the manufacturing of Cu-Ag alloys with the weight percent of Ag between 3 and 7 using the continuous casting process along with research on the physicochemical, mechanical and electrical properties of the obtained casts. The research on the amount of plastic deformation and its influence on the wire drawing process and the mechanical and electrical properties of the wires is also discussed. The temperature coefficients of resistance were defined in order to determine the temperature influence on the electrical resistance changes dynamics. The microstructural analysis was carried out in the as-cast state. The preliminary research conducted indicates that the obtained Cu-Ag alloys in the as-cast state exhibit a set of high mechanical and electrical properties. The prospective next stage of research includes the selection of favourable heat treatment parameters which would provide optimally modified microstructure of the alloys, as well as determining the deformation coefficients allowing for further increases in the mechanical and electrical properties.

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Fatigue of highly strengthened Cu–Ag alloys

Cited by 16 publications

References 36 publications

Facile Formation of Cu-Ag Film by Electrodeposition for the Oxidation-Resistive Metal Interconnect

Facile Formation of Cu-Ag Film by Electrodeposition for the Oxidation-Resistive Metal Interconnect

Simplified numerical approach for the thermo-mechanical analysis of steelmaking components under cyclic loading: an anode for electric arc furnace

Research on Mechanical and Electrical Properties of Cu-Ag Alloys Designed for the Construction of High Magnetic Field Generators

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