Stoichiometry and alloying effects on the phase stability and mechanical properties of TiCr{sub 2}-base Laves phase alloys

Book · Sat Jul 01 04:00:00 EDT 1995

OSTI ID:72565

Chen, K C; Allen, S M; Livingston, J D ^[1]

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1. Massachusetts Inst. of Technology, Cambridge, MA (United States). Dept. of Materials Science and Engineering

Ti-Cr alloys near the TiCr2 composition have been studied to determine the single-Phase Laves field and the associated defects accompanying off-stoichiometry. A combination of metallography, x-ray diffraction, lattice parameter measurements, density measurements and electron microprobe analysis have been used to establish a narrow single-phase region extending towards Ti-rich compositions. All three Laves crystal structures (C14, C36 and C15) were found to exist at different temperatures. Hardness and fracture toughness values determined by Vickers microindentation were studied as a function of alloy composition. Effects of adding Fe, Nb, Mo, and V to TiCr{sub 2} on lattice parameter, crystal structure, hardness and fracture toughness are reported.

• DOE Contract Number: FG02-90ER45426
• OSTI ID: 72565
• Report Number(s): CONF-941144--; ISBN 1-55899-265-0
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BINARY ALLOY SYSTEMS
CHROMIUM BASE ALLOYS
CRYSTAL DEFECTS
EXPERIMENTAL DATA
HEAT RESISTING ALLOYS
INTERMETALLIC COMPOUNDS
IRON
IRON ALLOYS
MECHANICAL PROPERTIES
METALLURGICAL EFFECTS
MOLYBDENUM
MOLYBDENUM ALLOYS
NIOBIUM
NIOBIUM ALLOYS
PHASE STUDIES
TERNARY ALLOY SYSTEMS
TITANIUM ALLOYS
VANADIUM
VANADIUM ALLOYS