Microstructural characteristics of pure gold processed by equal-channel angular pressing

Experiments were conducted to evaluate the microstructural characteristics of pure (4N) gold processed by equal-channel angular pressing using routes A or B c. Using atomic force microscopy and X-ray diffraction, it is shown that, although these two routes lead to similar dislocation densities of ∼1...

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Bibliographic Details
Published in:Scripta materialia 2007-06, Vol.56 (11), p.947-950
Main Authors: Gubicza, J., Chinh, N.Q., Szommer, P., Vinogradov, A., Langdon, T.G.
Format: Article
Language:English
Subjects:
Atomic force microscopy (AFM)
Deformation structure
Density
Dislocation density
Equal channel angular pressing
Equal-channel angular pressing (ECAP)
Gold
Gold (Au)
Grain size
Microstructure
Shearing
X-ray diffraction (XRD)
X-rays
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Summary:Experiments were conducted to evaluate the microstructural characteristics of pure (4N) gold processed by equal-channel angular pressing using routes A or B c. Using atomic force microscopy and X-ray diffraction, it is shown that, although these two routes lead to similar dislocation densities of ∼1.5–1.7 × 10 15 m −2 and similar average grain sizes of ∼460–490 nm, there are significant differences in the shearing patterns and in the densities of planar faults.
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2007.02.018