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Microstructure Refinement of Cold-Sprayed Copper Investigated By Electron Channeling Contrast Imaging

Abstract : The electron channeling contrast imaging technique was used to investigate the microstructure of copper coatings fabricated by cold gas dynamic spray. The high velocity impact characteristics for cold spray led to the formation of many substructures, such as high density dislocation walls, dislocation cells, deformation twins, and ultrafine equiaxed subgrains/grains. A schematic model is proposed to explain structure refinement of Cu during cold spray, where an emphasis is placed on the role of dislocation configurations and twinning.
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https://hal.archives-ouvertes.fr/hal-01283590
Contributor : Sylvie Descartes <>
Submitted on : Saturday, March 5, 2016 - 3:43:28 PM
Last modification on : Wednesday, November 20, 2019 - 7:24:46 AM

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Yinyin Zhang, Nicolas Brodusch, Sylvie Descartes, Richard Chromik, Raynald Gauvin. Microstructure Refinement of Cold-Sprayed Copper Investigated By Electron Channeling Contrast Imaging. Microscopy and Microanalysis, Cambridge University Press (CUP), 2014, 20, pp.1499-1506. ⟨10.1017/S1431927614001664⟩. ⟨hal-01283590⟩

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