An EBSD investigation of cryogenically-rolled Cu–30%Zn brass

Electron backscatter diffraction was used to study grain structure development in heavily cryogenically-rolled Cu–30%Zn brass. The produced microstructure was found to be very inhomogeneous. At a relatively coarse scale, it consisted of texture bands having crystallographic orientations close to the...

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Bibliographic Details
Published in:Materials characterization 2015-03, Vol.101, p.173-179
Main Authors: Konkova, T., Mironov, S., Korznikov, A., Korznikova, G., Myshlyaev, M.M., Semiatin, S.L.
Format: Article
Language:English
Subjects:
BACKSCATTERING
Bands
Boundaries
BRASS
Brasses
Copper
COPPER COMPOUNDS
Cryogenic deformation
CRYSTAL ORIENTATION
CRYSTALLOGRAPHY
CRYSTALS
Cu–30Zn brass
DEFORMATION
Electron back scatter diffraction
Electron backscatter diffraction
ELECTRON DIFFRACTION
FIBERS
GRAIN REFINEMENT
GRAIN SIZE AND SHAPE
Grain structure
MATERIALS SCIENCE
MICROSTRUCTURE
NANOSTRUCTURES
ROLLING
Surface layer
TEXTURE
TEXTURES
TWINNING
ZINC COMPOUNDS
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Summary:Electron backscatter diffraction was used to study grain structure development in heavily cryogenically-rolled Cu–30%Zn brass. The produced microstructure was found to be very inhomogeneous. At a relatively coarse scale, it consisted of texture bands having crystallographic orientations close to the α- and γ-fibers. The texture bands contained internal structure comprising shear bands, mechanical twins, and low-angle boundaries. Such features were more pronounced within the γ-fiber, and this resulted in a heterogeneous ultrafine grain structure. The cryogenic rolling was concluded to be not straightforward for production of nanocrystalline grain structure in Cu–30%Zn brass. •Cryogenic rolling produced an inhomogeneous ultrafine-grained microstructure.•Grain refinement was mainly related with twinning and shear banding.•Grain refinement preferentially occurred in {111} fiber texture
ISSN:1044-5803
1873-4189
DOI:10.1016/j.matchar.2015.02.004