Recrystallization mechanisms in a CuCrZr alloy with a bimodal distribution of particles

Morris, M.A.; Leboeuf, M.; Morris, David G.

doi:10.1016/0921-5093(94)90380-8

Cited by 39 publications

(15 citation statements)

References 8 publications

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“…It shows the addition of element Cr and Zr increases the strength of pure copper significantly and keeps the higher conductivities at the same time. The results are well consistent with previous reports [1][2][3][4][5]. The specimens of the pure copper and its alloys used in this study were produced as described in previous studies [15].…”

Section: Experimental Materials and Proceduressupporting

confidence: 84%

“…However, it exhibits poor strength which cannot meet the needs of wire. It had been proved that the addition of small amounts of Cr and Zr can increase the strength of copper significantly in room temperature and keep high electrical conductivities simultaneously [1][2][3][4][5]. Owing to the wide application fields, the corrosion behavior of copper and its alloys at room temperature should be concerned.…”

Section: Introductionmentioning

confidence: 98%

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Corrosion behavior of copper with minor alloying addition in chloride solution

Zhang

Zheng

et al. 2008

Journal of Alloys and Compounds

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Section: Experimental Materials and Proceduressupporting

confidence: 84%

Section: Introductionmentioning

confidence: 98%

Corrosion behavior of copper with minor alloying addition in chloride solution

Zhang

Zheng

et al. 2008

Journal of Alloys and Compounds

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“…In accordance with Refs. [2,15,19], A particles with a diameter of 3-6 nm in Fig. 6(a) are Cr particles and B particles with a diameter of 10-15 nm are copper-zirconium compounds.…”

Section: Microstructure Observation and Analysismentioning

confidence: 99%

“…Energy Dispersive X-Ray Spectroscopy (EDX) investigation indicated that the phases were Cu, pure Cr and Cu 5 Zr. The influence of the initial particle distributions on the recrystallization kinetics of a copper alloy containing two types of particles was studied by Morris et al [15]. The mechanism of recrystallization can be seen as a compromise between the differing behaviors of fine and coarse dispersoid particles of the alloys, in which recrystallization is initiated at large particles for sufficiently high temperatures, but is gradually suppressed by the influence of the fine particles as the annealing temperature is decreased.…”

Section: Introductionmentioning

confidence: 98%

Effect of thermomechanical treatment on microstructure and properties of Cu-Cr-Zr-Ag alloy

Xie

Huang

et al. 2011

Rare Metals

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The effects of thermomechanical treatment on the properties and microstructure of Cu-Cr-Zr alloy and Cu-Cr-Zr-Ag alloy were investigated. Ag addition improves the mechanical properties of the alloy through solid solution strengthening and brings a little effect on the electrical conductivity of the alloy. A new Cu-Cr-Zr-Ag alloy was developed, which has an excellent combination of the tensile strength, elongation, and electrical conductivity reaching 476.09 MPa, 15.43% and 88.68% IACS respectively when subjected to the optimum thermomechanical treatment, i.e., solution-treating at 920°C for 1 h, cold drawing to 96% deformation, followed by aging at 400°C for 3 h. TEM analysis revealed two kinds of finely dispersed precipitates of Cr and Cu 4 Zr. It is very important to use the mechanisms of solid solution strengthening, work hardening effect as well as precipitate pinning effect of dislocations to improve tensile strength of the alloy without adversely affecting its electrical conductivity.

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“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] Precipitation or age hardening of these alloys produces fine coherent precipitates that provide the necessary strength in Cu alloys. Furthermore, strength and hardness of the matrix phase may increase with a decrease in grain size following the Hall-Petch relationship.…”

Section: Introductionmentioning

confidence: 99%

Development of Wear-Resistant Cu-10Cr-3Ag Electrical Contacts with Nano-Al2O3 Dispersion by Mechanical Alloying and High Pressure Sintering

Bera

Lojkowsky

Manna

2009

Metall Mater Trans A

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Cu-10Cr-3Ag (wt pct) alloy with nanocrystalline Al 2 O 3 dispersion was prepared by mechanical alloying and consolidated by high pressure sintering at different temperatures. Characterization by X-ray diffraction and scanning electron microscopy or transmission electron microscopy shows the formation of nanocrystalline matrix grains of about 40 nm after 25 hours of milling with nanometric (<20 nm) Al 2 O 3 particles dispersed in it. After consolidation by high pressure sintering (8 GPa at 400°C to 800°C), the dispersoids retain their ultrafine size and uniform distribution, while the alloyed matrix undergoes significant grain growth. The hardness and wear resistance of the pellets increase significantly with the addition of nano-Al 2 O 3 particles. The electrical conductivity of the pellets without and with nano-Al 2 O 3 dispersion is about 30 pct IACS (international annealing copper standard) and 25 pct IACS, respectively. Thus, mechanical alloying followed by high pressure sintering seems a potential route for developing nano-Al 2 O 3 dispersed Cu-Cr-Ag alloy for heavy duty electrical contact.

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Recrystallization mechanisms in a CuCrZr alloy with a bimodal distribution of particles

Cited by 39 publications

References 8 publications

Corrosion behavior of copper with minor alloying addition in chloride solution

Corrosion behavior of copper with minor alloying addition in chloride solution

Effect of thermomechanical treatment on microstructure and properties of Cu-Cr-Zr-Ag alloy

Development of Wear-Resistant Cu-10Cr-3Ag Electrical Contacts with Nano-Al2O3 Dispersion by Mechanical Alloying and High Pressure Sintering

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