Ronald D Gollihue

US Patent:

20090321405, Dec 31, 2009

Filed:

Jun 22, 2009

Appl. No.:

12/488786

Inventors:

Brian A. Baker - Kitts Hill OH, US
Gaylord D. Smith - Huntington WV, US
Ronald D. Gollihue - Grayson KY, US

Assignee:

HUNTINGTON ALLOYS CORPORATION - Huntington WV

International Classification:

B23K 35/34
C22F 1/10
C22C 19/05
C22C 30/00
C22F 1/00

US Classification:

21914623, 148677, 148707, 420447, 420443, 420448, 420588, 420586

Abstract:

A nickel (Ni), chromium (Cr), cobalt (Co), iron (Fe), molybdenum (Mo), manganese (Mn), aluminum (Al), titanium (Ti), niobium (Nb), silicon (Si) welding alloy, articles made therefrom for use in producing weldments and methods for producing these weldments. The welding alloy contains in % by weight about: 23.5 to 25.5% Cr, 15 to 22% Co, up to 3% Fe, up to 1% Mo, up to 1% Mn, 1.1 to 2.0% Al, 0.8 to 1.8% Ti, 0.8 to 2.2% Nb, 0.05 to 0.28% Si, up to 0.3% Ta, up to 0.3% W, 0.005 to 0.08% C, 0.001 to 0.3% Zr, 0.0008 to 0.006% B, up to 0.05% rare earth metals, up to 0.025% Mg plus optional Ca and the balance Ni including trace additions and impurities. The welding alloy offers a combination of high temperature strength, ductility, stability, toughness and essentially defect-free weldability and weldments as to render the alloy range uniquely suitable for joining boiler tubing to the header pipe in supercritical, ultra-supercritical and advanced ultra-supercritical boiler applications where essentially defect-free joining is critical.

US Patent:

20130206274, Aug 15, 2013

Filed:

Jul 19, 2011

Appl. No.:

13/814309

Inventors:

Gaylord D. Smith - Huntington WV, US
Ronald D. Gollihue - Grayson KY, US
Brian A. Baker - Kitts Hill OH, US
Lewis E. Shoemaker - Barboursville WV, US

Assignee:

HUNTINGTON ALLOYS CORPORATION - Huntington WV

International Classification:

F16L 9/17
F16L 9/02
B23K 9/16
B23K 9/02
B21D 39/02
B21B 21/00

US Classification:

138177, 72368, 7237014, 219 74, 148521

Abstract:

A method of roll-forming sheet or plate into a round hollow, welding the round hollow with a welding alloy that matches the alloy of the round hollow to form a welded pipe, annealing the welded pipe at a minimum of 1950 F. to provide a carbide-free microstructure, ultrasonic inspecting to assure sound welds, and cold-working the annealed and inspected pipe via drawing or pilgering to the desired tensile strength. The compositional range alloys suitable for use in the method of the present invention in weight % is: 25.0-65.0% Ni, 15.0-30.0% Cr, 0-18.0% Mo, 2.5-48.0% Fe, 0-5.0% Cu, 0-5.0% Mn, 0-5.0% Nb, 0-2.0 Ti, 0-5.0% W, 0-1.0% Si, and 0.005-0.1% C. The process has been most preferably optimized for an alloy range consisting of 32.0-46% Ni, 19.5-28.0% Cr, 18.0-40.0% Fe, 3.0-8.0% Mo, 1.0-3.0% Cu, 0.6-1.2% Ti, 0.5-2.0% Mn, 0.1-0.5% Si, 0.01-0.08% C. The present invention also includes the pipe made thereby.

US Patent:

20090257908, Oct 15, 2009

Filed:

Apr 8, 2009

Appl. No.:

12/420251

Inventors:

Brian A. Baker - Kitts Hill OH, US
Gaylord D. Smith - Huntington WV, US
Ronald D. Gollihue - Grayson KY, US

Assignee:

HUNTINGTON ALLOYS CORPORATION - Huntington WV

International Classification:

C22C 19/05
C22C 30/00
C22F 1/10

US Classification:

420443, 420447, 420448, 420586, 420588, 148677

Abstract:

A high temperature, high strength Ni—Co—Cr alloy possessing essentially fissure-free weldability for long-life service at 538 C. to 816 C. contains in % by weight about: 23.5 to 25.5% Cr, 15-22% Co, 1.1 to 2.0% Al, 1.0 to 1.8 % Ti, 0.95 to 2.2% Nb, less than 1.0% Mo, less than 1.0% Mn, less than 0.3% Si, less than 3% Fe, less than 0.3% Ta, less than 0.3% W, 0.005 to 0.08% C, 0.01 to 0.3% Zr, 0.0008 to 0.006% B, up to 0.05% rare earth metals, 0.005% to 0.025% Mg plus optional Ca and the balance Ni including trace additions and impurities. The strength and stability is assured at 760 C. when the Al/Ti ratio is constrained to between 0.95 and 1.25. Further, the sum of Al+Ti is constrained to between 2.25 and 3.0. The upper limits for Nb and Si are defined by the relationship: (% Nb+0.95)+3.32(% Si)

US Patent:

20180340242, Nov 29, 2018

Filed:

Aug 1, 2018

Appl. No.:

16/051874

Inventors:

- Huntington WV, US
Gaylord D. Smith - Huntington WV, US
Ronald D. Gollihue - Grayson KY, US

Assignee:

Huntington Alloys Corporation - Huntington WV

International Classification:

C22C 19/05
F22B 37/22
C22F 1/10

Abstract:

A high temperature, high strength Ni—Co—Cr alloy is provided. The alloy includes, in weight percent (wt. %): 23.5 to 25.5% Cr, 15.0 to 22.0% Co, 1.1 to 2.0% Al, 1.0 to 1.8% Ti, 0.95 to 2.2% Nb, less than 1.0% Mo, less than 1.0% Mn, up to 0.24% Si, less than 3.0% Fe, less than 0.3% Ta, less than 0.3% W, 0.005 to 0.08% C, 0.01 to 0.3% Zr, 0.0008 to 0.006% B, up to 0.05% rare earth metals, and a balance of Ni plus trace impurities.

US Patent:

20150306710, Oct 29, 2015

Filed:

Apr 2, 2015

Appl. No.:

14/677277

Inventors:

- Huntington WV, US
Ronald D. Gollihue - Grayson KY, US
Sarwan K. Mannan - Barboursville WV, US

International Classification:

B23K 35/30
B23K 35/02
C22C 19/05
B23K 9/16

Abstract:

A welding filler metal or a welding filler metal product having, in weight percent: 17.0-23.0% chromium, 5.0-12.0% molybdenum, 3.0-11.0% tungsten, 3.0-5.0% niobium, 0-2.0% tantalum, 1.2-3.0% titanium, 0.005-1.50% aluminum, 0.0005-0.100% carbon,