Process for preparing titanium and titanium alloy materials having a fine equiaxed microstructure
US5108517A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 1990 |
| Grant date | Apr 28, 1992 |
| Priority date | — |
| Expiry date | Jul 26, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22F1/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
According to the present invention, titanium and titanium alloy materials having a fine equiaxed microstructure are produced. A titanium, .alpha. titanium alloy or (.alpha.+.beta.) titanium alloy material is hydrogenated in an amount of 0.02 to 2% by weight. If necessary, the hydrogenated material is subjected to pretreatment [i.e., heated above 700.degree. C. (.beta. transformation point)] and/or working (i.e., working at 450.degree. to 950.degree. C., or temperatures above .beta. transformation point and below 1100.degree. C.). The material is then aged at 10.degree. to 530.degree. C. or 10.degree. to 700.degree. C. (in the case of working at temperatures above .beta. transformation point), and finally dehydrogenated and recrystallized to prepared a material having a fine equiaxed microstructure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.