Titanium alloy microstructural refinement method and high temperature, high strain rate superplastic forming of titanium alloys
US8128764B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Dec 13, 2004 |
| Grant date | Mar 6, 2012 |
| Priority date | — |
| Expiry date | Feb 14, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22F1/183
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for refining the microstructure of titanium alloys in a single thermomechanical processing step, wherein the titanium alloy comprises boron. In some embodiments, the method comprises the steps of first adding boron to the titanium alloy then subjecting the boron-containing titanium alloy to a thermomechanical processing step. Also provided is a method for achieving superplasticity in titanium alloys comprising the steps of selecting a boron-containing titanium alloy, determining the temperature and strain rate necessary to achieve beta superplasticity, and applying sufficient temperature and strain rate to the boron-containing titanium alloy to deform the alloy to the desired shape. Also provided methods of forming titanium alloy parts and the parts prepared by these methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.