Morphology, deformation, and defect structures of TiCr{sub 2} in Ti-Cr alloys

Conference · Thu Dec 31 00:00:00 EST 1992

OSTI ID:10178642

Chen, K C; Allen, S M; Livingston, J D

The morphologies and defect structures of TiCr{sub 2} in several Ti-Cr alloys have been examined by optical metallography, x-ray diffraction, and transmission electron microscopy (TEM), in order to explore the room-temperature deformability of the Laves phase TiCr{sub 2}. The morphology of the Laves phase was found to be dependent upon alloy composition and annealing temperature. Samples deformed by compression have also been studied using TEM. Comparisons of microstructures before and after deformation suggest an increase in twin, stacking fault, and dislocation density within the Laves phase, indicating some but not extensive room-temperature deformability.

• Research Organization: Massachusetts Inst. of Tech., Cambridge, MA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: FG02-90ER45426
• OSTI ID: 10178642
• Report Number(s): CONF-9211205-4; ON: DE93018332; TRN: 93:018939
• Resource Relation: Conference: High-temperature ordered intermetallic alloys V,Boston, MA (United States),30 Nov - 3 Dec 1992; Other Information: PBD: [1992]
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
TITANIUM ALLOYS
DEFORMATION
PRECIPITATION HARDENING
PHASE STUDIES
CHROMIUM ALLOYS
LAVES PHASES
INTERMETALLIC COMPOUNDS
BINARY ALLOY SYSTEMS
MICROSTRUCTURE
COMPRESSION
TRANSMISSION ELECTRON MICROSCOPY
DISLOCATIONS
TWINNING
360102
360103
STRUCTURE AND PHASE STUDIES
MECHANICAL PROPERTIES