Method of Marking Titanium Alloy Articles Having Distinct Microstructural Regions Corresponding to High Creep and Fatigue Resistance.
Patent, Filed 8 Nov 88, patented 25 Jul 89,
DEPARTMENT OF THE AIR FORCE WASHINGTON DC
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A method for producing an integral titanium alloy article having at least two regions, each region having a distinct microstructure is provided. The method comprises heat treating one or more selected regions of the article at a temperature greater than the beta-transus temperature of the regions, while simultaneously heat treating the remaining regions of the article at a temperature below the beta-transus temperature of the remaining regions. Pat-148-20.3. jes
- Metallurgy and Metallography