Method for improving aging response and uniformity in beta-titanium alloys
US5201967A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1991 |
| Grant date | Apr 13, 1993 |
| Priority date | — |
| Expiry date | Dec 11, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22F1/183
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention relates to a process for improving the aging response and uniformity in a beta titanium alloy comprising the steps of: PA0 (a) cold working said beta titanium alloy to at least about 5% so that a reasonable degree of recrystallization can be obtained during subsequent solution treatment; PA0 (b) pre-aging said cold worked alloy at about 900.degree. to about 1300.degree. F. for a time in excess of about 5 minutes to obtain a pre-aged alloy; PA0 (c) solution treating said pre-aged alloy at a time and temperature to achieve a reasonable degree of recrystallization of said pre-aged alloy above the beta transus; and PA0 (d) aging said solution treated alloy at temperature and times to achieve a pre-aged, solution treated and aged beta titanium alloy substantially in a state of metallurgical equilibrium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.