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Method to produce high strength alpha / beta titanium alloy fasteners
专利权人:
ATI Properties LLC
发明人:
BRYAN, David J.
申请号:
ES11760918
公开号:
ES2686921T3
申请日:
2011.09.07
申请国别(地区):
ES
年份:
2018
代理人:
摘要:
A method of producing a titanium alloy fixing element having a diameter of 4.57 mm (0.18 inches) to 31.8 mm (1.25 inches), the method comprising: providing an alpha / titanium alloy beta comprising, in percentage by weight: from 3.9 to 4.5 of aluminum; from 2.2 to 3.0 of vanadium; from 1.2 10 to 1.8 iron; from 0.24 to 0.3 oxygen; up to 0.08 carbon; up to 0.05 nitrogen; up to a total of 0.3 of other elements, where up to a total of 0.3% of other elements includes one or more of: less than 0.005 of each boron and yttrium; no more than 0.1 of each of tin, zirconium, molybdenum, chromium, nickel, silicon, copper, niobium, tantalum, manganese and cobalt; and the rest of titanium and inevitable impurities; hot rolling of the titanium alloy in an alpha / beta phase of the titanium alloy; anneal the titanium alloy at an annealing temperature in a range of 648.9 ° C (1200 ° F) to 760 ° C (1400 ° F) for an annealing time in a range of 1 hour to 2 hours; cool the titanium alloy in air; machining the titanium alloy to a predetermined dimension of a diameter of 4.57 mm (0.18 inches) to 31.8 mm (1.25 inches); treating the machined titanium alloy in solution in a solution treatment range of 815.6 ° C (1500 ° F) to 926.7 ° C (1700 ° F) during a solution treatment time in a range of 0, 5 hours to 2 hours; cooling the titanium alloy at a cooling rate of at least 555.6 ° C (1000 ° F) per minute; aging the titanium alloy at an aging treatment temperature in a range of 426.7 ° C (800 ° F) to 537.8 ° C (1000 ° F) during a solution treatment time in a 4 hour interval at 16 hours; and cool the titanium alloy in air.Un método para producir un elemento de fijación de aleación de titanio que tiene un diámetro de 4,57 mm (0,18 pulgadas) a 31,8 mm (1,25 pulgadas), comprendiendo el método: proporcionar una aleación de titanio alfa/beta que comprende, en porcentaje en peso: de 3,9 a 4,5 de aluminio; de 2,2 a 3,0 de vanadio; de 1,2 10 a 1,8 de hierro; de 0,24 a 0,3 de oxígeno; hasta 0,08 de carbon
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