Deformation textures of aluminum in a multilayered Ti/Al/Nb composite severely deformed by accumulative roll bonding

Journal Article · Tue Sep 15 00:00:00 EDT 2015 · Materials Characterization

DOI:https://doi.org/10.1016/J.MATCHAR.2015.07.011· OSTI ID:22476177

Qu, Peng; Zhou, Liming

The accumulative roll bonding process was carried out to produce multilayered Ti/Al/Nb composites up to four cycles. Scanning electron microscopy, transmission electron microscopy electron backscattered diffraction and nanoindentation were employed to investigate the microstructural and texture evolution. A homogenous distribution of Ti/Nb necking layers in Al matrix was achieved after four ARB cycles. Grain refinement was observed to increase with increasing number of ARB cycles. The fraction of high-angle grain boundaries as also increased. Strong recrystallization texture appeared for high number of ARB cycles due to the adiabatic heat that occurs during ARB processing. The shear band at the Ti/Al interface reduced the intensity of the cold rolling fiber textures of Al. There was no evidence of shear component from the orientation distribution function results.

• OSTI ID: 22476177
• Journal Information: Materials Characterization, Vol. 107; Other Information: Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1044-5803
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM
BACKSCATTERING
BONDING
COMPOSITE MATERIALS
DEFORMATION
DISTRIBUTION
DISTRIBUTION FUNCTIONS
ELECTRON DIFFRACTION
FIBERS
GRAIN BOUNDARIES
GRAIN REFINEMENT
INTERFACES
LAYERS
NIOBIUM
RECRYSTALLIZATION
ROLLING
SCANNING ELECTRON MICROSCOPY
TEXTURE
TITANIUM
TRANSMISSION ELECTRON MICROSCOPY