Bulk titanium-rich alloys containing nanoscale disordered regions
- Univ. of Virginia, Charlottesville, VA (United States)
Nanoscale disordered regions were obtained in titanium-rich alloys via annealing of a metastable crystalline phase. This metastable bcc solid solution ({beta}) was formed in the alloy Ti{sub 65}Cr{sub 13}Cu{sub 16}Mn{sub 4}Fe{sub 2} following arc melting and cooling or simply by air cooling a solutionized ingot. Since only air cooling was required to retain the {beta} phase, large ingots can be produced. During subsequent annealing, partial amorphization occurred in conjunction with a phase transformation from {beta} to {beta}{prime}. The premise for this amorphization is the reduction of the free energy difference between an amorphous phase and a metastable crystalline phase with proper alloy additions. Comparisons are made with amorphized powders at the same composition produced by mechanical milling.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 644326
- Report Number(s):
- CONF-970201--
- Journal Information:
- Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science, Journal Name: Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science Journal Issue: 7 Vol. 29; ISSN MMTAEB; ISSN 1073-5623
- Country of Publication:
- United States
- Language:
- English
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