On the oxidation behaviour of a Cu–10vol% Cr in situ composite

Haugsrud, Reidar; Lee, K.L.

doi:10.1016/j.msea.2005.01.042

Cited by 7 publications

(2 citation statements)

References 13 publications

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“…The result indicated that the filaments underwent a capillarity-driven shape change from bamboo morphology with grain boundary grooves to complete spherodization during annealing. The oxidation behavior of Cu and Cu-10% Cr in situ composite was studied by Haugsrud and Lee [11] at 400-700 ℃ in air and in argon containing 10 ppm O 2 . They found that the presence of the Cr fibers increases the oxidation resistance compared to unalloyed copper up to 600 ℃.…”

Section: Introductionmentioning

confidence: 99%

Effect of directional solidification rate on the microstructure and properties of deformation-processed Cu–7Cr–0.1Ag in situ composites

Liu¹,

Jiang²,

Zhao³

et al. 2014

Journal of Alloys and Compounds

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Effect of directional solidification rate on the microstructure and properties Effect of directional solidification rate on the microstructure and properties of deformation-processed Cu-7Cr-0.1Ag in situ composites of deformation-processed Cu-7Cr-0.1Ag in situ composites Deping, "Effect of directional solidification rate on the microstructure and properties of deformation-processed Cu-7Cr-0.1Ag in situ composites" (2014). Faculty of Engineering and Information Sciences -Papers: Part A. 2966.Effect of directional solidification rate on the microstructure and properties of Effect of directional solidification rate on the microstructure and properties of deformation-processed Cu-7Cr-0.1Ag in situ composites deformation-processed Cu-7Cr-0.1Ag in situ composites Abstract AbstractThe influence of directional solidification rate on the microstructure, mechanical properties and conductivity of deformation-processed Cu-7Cr-0.1Ag in situ composites produced by thermo-mechanical processing was systematically investigated. The microstructure was analyzed by optical microscopy and scanning electronic microscopy. The mechanical properties and conductivity were evaluated by tensiletesting machine and micro-ohmmeter, respectively. The results indicate that the size, shape and distribution of second-phase Cr grains are significantly different in the Cu-7Cr-0.1Ag alloys with different growth rates. At a growth rate of 200 μm s-1, the Cr grains transform into fine Cr fiber-like grains parallel to the pulling direction from the Cr dendrites. The tensile strength of the Cu-7Cr-0.1Ag in situ composites from the directional solidification (DS) alloys is significantly higher than that from the as-cast alloy, while the conductivity of the in situ composites from the DS alloys is slightly lower than that from the as-cast alloy. The following combinations of tensile strength, elongation to fracture and conductivity of the Cu-7Cr-0.1Ag in situ composites from the DS alloy with a growth rate of 200 μm s-1 and a cumulative cold deformation strain of 8 after isochronic aging treatment for 1 h can be obtained respectively as: (i) 1067 MPa, 2.9% and 74.9% IACS; or (ii) 1018 MPa, 3.0%, and 76.0% IACS or (iii) 906 MPa, 3.3% and 77.6% IACS. 2014). Effect of directional solidification rate on the microstructure and properties of deformation-processed Cu-7Cr-0.1Ag in situ composites. Journal of Alloys and Compounds, 612 221-226.Abstract: The influence of directional solidification rate on the microstructure, mechanical properties and conductivity of deformation-processed Cu-7Cr-0.1Ag in situ composites produced by thermo-mechanical processing was systematically investigated. The microstructure was analyzed by optical microscopy and scanning electronic microscopy. The mechanical properties and conductivity were evaluated by tensile-testing machine and micro-ohmmeter, respectively. The results indicate that the size, shape and distribution of second-phase Cr grains are significantly different in the Cu-7Cr-0.1Ag alloys with different growth rates. At a...

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Section: Introductionmentioning

confidence: 99%

Effect of directional solidification rate on the microstructure and properties of deformation-processed Cu–7Cr–0.1Ag in situ composites

Liu¹,

Jiang²,

Zhao³

et al. 2014

Journal of Alloys and Compounds

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“…Thus, it is necessary to examine the oxidation behavior of anodes at high temperature to reveal its molten-salts corrosion at high temperature. Haugsrud [6] studied the oxidation behaviour of Cu-10 vol% Cr composite from 400 to 700℃ in air. The results showed that the chromium act as diffusion barrier to the outward diffusion of copper and decrease the overall oxidation rate.…”

Section: Introductionmentioning

confidence: 99%

Air Oxidation of Porous Cu-35wt.%Ni-(5,10,15) wt%Cr Alloys at 650°C

Chen

Huang

Ren

et al. 2013

AMM

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The oxidation behavior of porous Cu-Ni-Cr alloys containing approximately 5,10 and 15 wt.%Cr, but with a similar Ni content of 35 wt.%, was studied at 650°C in air. The results showed that the oxidation of alloys follows linear law at initial stage and then the parabolic rate law. Continuous external scales of CuO and Cu2O formed on the alloys. Some internal oxide of were observed. In addition, with increase of Cr content, the oxidation rate decreased slightly.

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Chromium – Copper – Oxygen

Perrot

2010

Landolt-Börnstein - Group IV Physical Chemistry

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On the oxidation behaviour of a Cu–10vol% Cr in situ composite

Cited by 7 publications

References 13 publications

Effect of directional solidification rate on the microstructure and properties of deformation-processed Cu–7Cr–0.1Ag in situ composites

Effect of directional solidification rate on the microstructure and properties of deformation-processed Cu–7Cr–0.1Ag in situ composites

Air Oxidation of Porous Cu-35wt.%Ni-(5,10,15) wt%Cr Alloys at 650°C

Chromium – Copper – Oxygen

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