The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 24, 2017
Filed:
Aug. 28, 2012
Dilip M. Shah, Glastonbury, CT (US);
Herbert A. Chin, Portland, CT (US);
John Joseph Marcin, Marlborough, CT (US);
Paul L. Reynolds, Tolland, CT (US);
Gabriel L. Suciu, Tolland, CT (US);
Paul D. Genereux, Stuart, FL (US);
Carl E. Kelly, Plantsville, CT (US);
Dilip M. Shah, Glastonbury, CT (US);
Herbert A. Chin, Portland, CT (US);
John Joseph Marcin, Marlborough, CT (US);
Paul L. Reynolds, Tolland, CT (US);
Gabriel L. Suciu, Tolland, CT (US);
Paul D. Genereux, Stuart, FL (US);
Carl E. Kelly, Plantsville, CT (US);
UNITED TECHNOLOGIES CORPORATION, Farmington, CT (US);
Abstract
High modulus turbine shafts and high modulus cylindrical articles are described as are the process parameters for producing these shafts and cylindrical articles. The shafts/articles have a high Young's modulus as a result of having high modulus <111> crystal texture along the longitudinal axis of the shaft/article. The shafts are produced from directionally solidified seeded <111> single crystal cylinders that are axisymmetrically hot worked before a limited recrystallization process is carried out at a temperature below the recrystallization temperature of the alloy. The disclosed process produces an intense singular <111> texture and results in shaft or cylindrical article with a Young's modulus that is at least 40% greater than that of conventional nickel or iron alloys or conventional steels.