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US 2014/0271336 A1Published application
Nanostructured Titanium Alloy And Method For Thermomechanically Processing The Same
AssigneeCRS Holdings, Inc.
InventorsGian Colombo, Venkata N. Anumalasetty, Graham McIntosh
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Abstract
A nanostructured titanium alloy article is provided. The nanostructured alloy includes a developed structure that has been processed from a combination of severe plastic deformation and non-severe plastic deformation type thermomechanical processing steps, with at least 80% of grains in the developed structure having a grain size≦1.0 microns.
Claims23
A nanostructured titanium alloy article, comprising:
- a developed α-titanium structure processed from a combination of a severe plastic deformation process type and non-severe plastic deformation type thermomechanical processing steps and having ≧80% of grains in the developed a-titanium structure have a size≦1.0 micron.
A method for making a nanostructured titanium alloy, comprising the steps of:
- providing a workpiece of commercially pure titanium alloy;
- inducing severe plastic deformation to the workpiece using an equal-channel angular pressing-conform machine at temperatures≦450° C. and having a die set at a channel angle of intersection between ψ=75° and ψ=135°;
- and
- subjecting the workpiece to thermomechanical processing at temperatures≦450° C. to prepare an article having a cross-sectional area reduction≧35%.
1 more element
Dependencies are inferred from the claim text.