CPC C22F 1/183 (2013.01) [C22C 14/00 (2013.01)] | 16 Claims |
1. A method of producing a straightened beta-titanium alloy elongated product form, the method comprising:
solution treating a beta-titanium alloy product form having a chemical composition as specified in UNS R58150 or ASTM F2066-13;
aging the solution treated beta-titanium alloy product form in a first temperature range of 482° C. to 510° C.;
applying a stress to the solution treated and aged beta-titanium alloy product form in a second temperature range of ambient temperature to 482° C. for a time sufficient to improve straightness of the solution treated and aged beta-titanium alloy product form, to provide a straightened solution treated and aged beta-titanium alloy elongated product form, wherein the straightened solution treated and aged beta-titanium alloy elongated product form deviates from straight by no greater than 0.0625 inch (1.588 mm) over any 5 foot length (152.4 cm);
stress-relief aging the straightened solution treated and aged beta-titanium alloy elongated product form in a third temperature range of 426° C. to 510° C., to provide a stress-relief aged straightened beta-titanium alloy elongated product form; and
air cooling the stress-relief aged straightened beta-titanium alloy elongated product form from the third temperature range without applying a stress to the stress-relief aged straightened beta-titanium alloy elongated product form during the air cooling.
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