Bruce A Pint

7258752, Aug 21, 2007

Mar 26, 2003

10/397582

Philip J. Maziasz - Oak Ridge TN, US
Robert W. Swindeman - Oak Ridge TN, US
Bruce A. Pint - Knoxville TN, US
Michael L. Santella - Knoxville TN, US
Karren L. More - Knoxville TN, US

UT-Battelle LLC - Oak Ridge TN

C22C 38/48
C22C 38/42
C22C 38/44

148327, 148326

A wrought stainless steel alloy composition includes 12% to 25% Cr, 8% to 25% Ni, 0. 05% to 1% Nb, 0. 05% to 10% Mn, 0. 02% to 0. 15% C, 0. 02% to 0. 5% N, with the balance iron, the composition having the capability of developing an engineered microstructure at a temperature above 550 C. The engineered microstructure includes an austenite matrix having therein a dispersion of intragranular NbC precipitates in a concentration in the range of 10to 10precipitates per cm.

7744813, Jun 29, 2010

Jan 4, 2007

11/619944

Michael P. Brady - Oak Ridge TN, US
Bruce A. Pint - Knoxville TN, US
Chain-Tsuan Liu - Oak Ridge TN, US
Philip J. Maziasz - Oak Ridge TN, US
Yukinori Yamamoto - Oak Ridge TN, US
Zhao P. Lu - Oak Ridge TN, US

UT-Battelle, LLC - Oak Ridge TN

C22C 38/42
C22C 38/30
C22C 38/60
C22C 38/58
C22C 38/00

420 34, 420 38, 420 40, 420 42, 420 45, 420 47, 420 48, 148326, 148327

An austenitic stainless steel displaying high temperature oxidation and creep resistance has a composition that includes in weight percent 15 to 21 Ni, 10 to 15 Cr, 2 to 3. 5 Al, 0. 1 to 1 Nb, and 0. 05 to 0. 15 C, and that is free of or has very low levels of N, Ti and V. The alloy forms an external continuous alumina protective scale to provide a high oxidation resistance at temperatures of 700 to 800 C. and forms NbC nanocarbides and a stable essentially single phase fcc austenitic matrix microstructure to give high strength and high creep resistance at these temperatures.

20030190515, Oct 9, 2003

Mar 31, 2003

10/403472

Michael Brady - Oak Ridge TN, US
Joachim Schneibel - Knoxville TN, US
Bruce Pint - Knoxville TN, US
Philip Maziasz - Oak Ridge TN, US

H01M002/02

429/034000

A corrosion resistant, electrically conductive component such as a bipolar plate for a PEM fuel cell includes 20-55% Cr, balance base metal such as Ni, Fe, or Co, the component having thereon a substantially external, continuous layer of chromium nitride.

20090286107, Nov 19, 2009

May 13, 2008

12/119648

Bruce A. Pint - Knoxville TN, US
Beth L. Armstrong - Clinton TN, US
Ian G. Wright - Oak Ridge TN, US
Michael P. Brady - Oak Ridge TN, US
Peter F. Tortorelli - Knoxville TN, US
Roddie R. Judkins - Knoxville TN, US
Timothy R. Armstrong - Clinton TN, US
Carolyn Christine Judkins - Knoxville TN, US

UT-BATTELLE, LLC - Oak Ridge TN

H01M 2/00
C22C 38/22

429 12, 420 67, 420 40

The invention relates to a ferritic alloy composition. In one aspect, the ferritic alloy composition comprises about 16 to 20 wt. % Cr, about 7 to 11 wt. % Mo, and the balance Fe. In another aspect, the ferritic composition comprises about 10 to 14 wt. % Cr, about 7 to 11 wt. % Mo or about 10 to 20 wt. % W, and the balance Fe.

20200354820, Nov 12, 2020

Mar 30, 2020

16/834767

- Oak Ridge TN, US
Bruce A. Pint - Knoxville TN, US
Jonathan D. Poplawsky - Knoxville TN, US
Lizhen Tan - Knoxville TN, US

C22C 30/00

A Fe—Ni based alloy comprising, in weight percent: Ni 30-35; Cr 12-14; Al 3-5; Ti 0-2; Ta 2-8; C

20190330723, Oct 31, 2019

Jul 12, 2019

16/510524

- OAK RIDGE TN, US
Govindarajan Muralidharan - Knoxville TN, US
Bruce A. Pint - Knoxville TN, US
Kinga A. Unocic - Knoxville TN, US
Ying Yang - Farragut TN, US

C22C 38/42
C22C 38/44
C22C 38/48
C22C 38/34
C22C 38/38
C22C 38/06

An air castable Fe-based stainless steel alloy comprises in weight % based on the total weight of the alloy 18-22% Cr, 15-22% Ni, 3-6% Al, 0.5-5% Mn, 0-3.5% W, 0-5% Cu, 0-2% Si, 1-2.5% Nb, 0.3-0.6% C balance Fe wherein, Cu+W+Si=0.5-10.5, and the alloy provides an oxidation resistance of 0.5

20190264307, Aug 29, 2019

Feb 22, 2019

16/283359

- Oak Ridge TN, US
Bruce A. Pint - Knoxville TN, US
Michael P. Brady - Oak Ridge TN, US

C22C 38/54
C22C 38/02
C22C 38/04
C22C 38/06
C22C 38/00
C22C 38/44
C22C 38/48
C22C 38/50
C21D 8/02

An alloy includes in weight % based upon the total weight of the alloy: 28-35% Cr; 2.5-4% Al; 0.8-2% Nb; 5.5-7.5% W; 0-0.5% Mo; 0-0.3% Ti; 0.1-0.3% Zr; 0.1-1% Si; 0-0.07% Y; 0-2% Mn; 0-1% Ni; 0-0.05% C; 0-0.015% B; 0-0.02% N; 0.02-0.04 Ce; balance Fe. The alloy includes a recrystallized, equi-axed grain structure, and forms an external alumina scale, and has strengthening particles including FeM (M: Nb, W, Mo, and Ti) type C14 Laves-phase, and a BCC ferritic matrix microstructure from room temperature to melting point with less than 1% FCC-phase, less than 1% martensite phase, less than 0.5 wt. % of carbides (MC and MC), and at least 1% tensile elongation at room temperature. The alloy provides a creep resistance of greater than 3000 to 15000 h creep rupture life at 750 C. and 50 MPa, or greater than 500 to 5000 h creep rupture life at 700 C. and 100 MPa.

20190226065, Jul 25, 2019

Jan 25, 2019

16/258526

- Oak Ridge TN, US
Govindarajan Muralidharan - Knoxville TN, US
Bruce A. Pint - Knoxville TN, US
Kinga A. Unocic - Oak Ridge TN, US
Ying Yang - Farragut TN, US

C22C 38/58
C22C 38/48
C22C 38/44
C22C 38/42
C22C 38/06
C22C 38/00
C22C 38/02
C22C 38/04
C22C 30/02

An air castable Fe-based stainless steel alloy comprises in weight % based on the total weight of the alloy 18-22% Cr, 15-22% Ni, 3-6% Al, 0.5-5% Mn, 0-3.5% W, 0-5% Cu, 0-2% Si, 1-2.5% Nb, 0.3-0.5% C balance Fe wherein, Cu+W+Si=0.5-, and the alloy provides an oxidation resistance of 0.5