| 摘要 |
A process for the production of seamless titanium alloy tubing is disclosed in which solution annealing for all intermediate operations are performed in an air atmosphere furnace, followed either by water or room temperature air quench in order to achieve cooling within the requisite five (5) minutes. Preferably final aging is performed in a vacuum furnace to avoid surface contamination which would ordinarily require subsequent removal by pickling. This produced a finer grained product, which was more susceptible to defect detection by ultrasonic testing, which produced an optimum combination of strength and ductility, and which showed more uniform response to aging between different lots and tube sizes. |
