Swift amorphization of a supersaturated titanium solution by mechanical milling
- Univ. of Virginia, Charlottesville, VA (United States)
Most studies of solid-state vitrification via mechanical milling use elemental powders or intermetallic compounds as starting materials. The authors report that a bcc supersaturated solid solution with the composition Ti{sub 65}Cr{sub 13}Cu{sub 16}Mn{sub 4}Fe{sub 2} can be almost fully transformed to an amorphous state after just 3 hours of milling. The formability of the amorphous phase is found to depend strongly on composition and it improves significantly from the binary to the five component alloys. The findings are attributed to the interaction of atomic species, which results in the narrowing of the free energy difference between the bcc solid solution and the amorphous phase in the starting materials. For a specific solid solution in which the critical time for amorphization obtained by MM is less than a certain threshold value, partial amorphization by annealing of the {beta} alloy ingot is observed.
- Sponsoring Organization:
- Department of the Army, Washington, DC (United States)
- OSTI ID:
- 611564
- Journal Information:
- Scripta Materialia, Journal Name: Scripta Materialia Journal Issue: 4 Vol. 38; ISSN 1359-6462; ISSN SCMAF7
- Country of Publication:
- United States
- Language:
- English
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