Invention Application
US20050087272A1 Method for fabricating a thick Ti64 alloy article to have a higher surface yield and tensile strengths and a lower centerline yield and tensile strengths
失效
用于制造厚Ti64合金制品以具有更高的表面产量和拉伸强度以及较低的中心线屈服和拉伸强度的方法
- Patent Title: Method for fabricating a thick Ti64 alloy article to have a higher surface yield and tensile strengths and a lower centerline yield and tensile strengths
- Patent Title (中): 用于制造厚Ti64合金制品以具有更高的表面产量和拉伸强度以及较低的中心线屈服和拉伸强度的方法
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Application No.: US10692985Application Date: 2003-10-24
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Publication No.: US20050087272A1Publication Date: 2005-04-28
- Inventor: Peter Wayte , Ming Li
- Applicant: Peter Wayte , Ming Li
- Applicant Address: US NY Schenectady
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Schenectady
- Main IPC: B21K3/04
- IPC: B21K3/04 ; B44C1/17 ; C21D9/00 ; C22F1/18
Abstract:
A Ti-6Al-4V-0.2O (Ti64) forged article is fabricated by forging a workpiece to make a forged gas turbine engine component having a thick portion thereof with a section thickness greater than 2¼ inches. The forged article is heat treated by solution heat treating at a temperature of from about 50° F. to about 75° F. below the beta-transus temperature of the alloy, thereafter water quenching the gas turbine engine component to room temperature, and thereafter aging the gas turbine engine component at a temperature of from about 900° F. to about 1000° F. The resulting machined gas turbine engine component has a 0.2 percent yield strength of from about 120 ksi to about 140 ksi at its centerline, and a 0.2 percent yield strength of from about 160 ksi to about 175 ksi at a location about ½ inch below a surface thereof.
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