Geometrical aspects of cooperative grain boundary sliding

Conference · Sun Dec 31 04:00:00 EST 1995

OSTI ID:194197

Zelin, M G; Li, Q; Mukherjee, A K ^[1]

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1. Univ. of California, Davis, CA (United States). Dept. of Chemical Engineering and Materials Science

Studies of superplastic (SP) deformation in materials with different types of microstructure, i.e., micro-duplex, quasi-single phase, and layered microstructure, in which SP-layer(s) were sandwiched between non-SP regions showed sliding of grain groups. This cooperative grain boundary sliding (CGBS) phenomenon has been studied at different microstructural scales. A computer aided geometrical analysis of CGBS has been developed. Different combinations of the operation of CGBS surfaces have been modeled. A pattern of shear surfaces, observed experimentally, can be produced assuming double shear at CGBS surfaces.

• OSTI ID: 194197
• Report Number(s): CONF-950201--; ISBN 0-87339-300-7
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
COMPUTERIZED SIMULATION
COPPER ALLOYS
DEFORMATION
GRAIN SIZE
LAYERS
LEAD ALLOYS
LITHIUM ALLOYS
MAGNESIUM ALLOYS
MANGANESE ALLOYS
MICROSTRUCTURE
MOLYBDENUM ALLOYS
PLASTICITY
SCANNING ELECTRON MICROSCOPY
SLIP
STRAINS
SURFACES
TIN ALLOYS
TITANIUM ALLOYS
ZIRCONIUM ADDITIONS