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