Paul A Reynolds

US Patent:

20170130289, May 11, 2017

Filed:

Jan 20, 2017

Appl. No.:

15/411355

Inventors:

- Farmington CT, US
Herbert A. Chin - Charlotte NC, US
John Joseph Marcin - Marlborough CT, US
Paul L. Reynolds - Tolland CT, US
Gabriel L. Suciu - Glastonbury CT, US
Paul D. Genereux - Stuart FL, US

International Classification:

C21D 9/08
C21D 1/26
B22D 27/04
C22C 19/05
C22C 38/00
C21D 8/10
C22F 1/10

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 crystal texture along the longitudinal axis of the shaft/article. The shafts are produced from directionally solidified seeded 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 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.

US Patent:

20160325357, Nov 10, 2016

Filed:

Dec 16, 2014

Appl. No.:

15/108476

Inventors:

Herbert A. Chin - Charlotte NC, US
Paul L. Reynolds - Tolland CT, US
Stephen P. Muron - Columbia CT, US
Kevin W. Schlichting - South Glastonbury CT, US
Raymond C. Benn - Madison CT, US

International Classification:

B22F 3/20
B22F 9/04
B22F 1/00

Abstract:

A nickel alloying process includes providing a metal powder containing substantially unalloyed nickel for high inherent thermal conductivity, forming a nickel alloy from the metal powder with addition of additives to form a uniform fine thermo-dynamically stable incoherent precipitate dispersion like carbides, oxides or nitrides, apply mechanical or thermo-chemical reactions to form or maintain a uniform fine dispersion of the incoherent precipitates, removing air and absorbed water from the nickel alloy, and hot extruding the nickel alloy to substantially full density and prescribed dispersion strengthened condition. A net result is a dispersion strengthened high thermal conductivity nickel alloy.