Patents Assigned to Inco Alloys International, Inc.
  • Patent number: 5328499
    Abstract: A mechanically alloyed composition of matter containing 30-40% chromium, 0-15% cobalt, 0-10% iron, 0.2-1.0% aluminum, 0.3-1.2% titanium, greater than 1-5% tantalum and/or niobium, 0.2-1% yttria, usual processing and trace impurities, and the balance nickel. The addition of tantalum improves the workability characteristics of the alloy. The alloy is particularly useful for molten glass spinners.
    Type: Grant
    Filed: April 28, 1993
    Date of Patent: July 12, 1994
    Assignee: Inco Alloys International, Inc.
    Inventors: Jon M. Poole, Sarwan K. Mannan, Howard W. Sizek
  • Patent number: 5322666
    Abstract: The invention provides a method of mechanical alloying a titanium-base metal powder. Titanium-base metal powder is provided in a mechanical alloying apparatus. The mechanical alloying apparatus has a controlled atmosphere to prevent excessive oxidation of the titanium-base metal powder. An effective amount of tin process control agent is added to the mechanical alloying apparatus. The mechanical alloying apparatus is operated to weld and fracture the titanium-base metal powder in a manner controlled by the tin process control agent. The controlled welding and fracturing ultimately forms a titanium-base mechanically alloyed powder.
    Type: Grant
    Filed: March 24, 1992
    Date of Patent: June 21, 1994
    Assignee: Inco Alloys International, Inc.
    Inventor: Arunkumar S. Watwe
  • Patent number: 5312697
    Abstract: A nickel-base alloy suitable for overlaying steel substrates. The alloy and steel have similar thermal conductivities and thermal coefficients of expansion. The alloy broadly initially contains about 15-20% molybdenum, about 5-10% chromium, up to about 2% iron, up to about 5% tungsten and/or niobium, up to about 0.1% carbon, and the balance essentially nickel.
    Type: Grant
    Filed: April 24, 1992
    Date of Patent: May 17, 1994
    Assignee: Inco Alloys International, Inc.
    Inventors: Samuel D. Kiser, Melissa A. Moore, David B. O'Donnell
  • Patent number: 5308698
    Abstract: The invention provides a coated electrode for producing a nickel-base weld deposit containing at least 12 weight percent chromium. The coated electrode includes a flux surrounding the core wire. The flux includes in parts by weight 5 to 35 strontium carbonate, 5 to 35 total metal carbonate compound, 0 to 20 manganese with at least 5 manganese present when less than 0.5 weight percent manganese is present in the core wire, 10 to 40 fluoride compound and 5 to 45 oxide compound. A binder is used to hold the flux to the core wire.
    Type: Grant
    Filed: May 21, 1992
    Date of Patent: May 3, 1994
    Assignee: Inco Alloys International, Inc.
    Inventors: Robert A. Bishel, Evan B. Hinshaw
  • Patent number: 5308407
    Abstract: The invention provides an electroslag welding flux that is especially useful for welding copper-nickel alloys. The electroslag flux contains by weight percent 50 to 95 fluoride compound, 0 to 45 oxide compound, 1 to 25 rare earth-containing material, 1 to 45 potassium-containing material and 0 to 25 metallic. Advantageously, the flux contains by weight percent 60 to 90 fluoride compound, 5 to 40 oxide compound, 2 to 20 rare earth material, 1 to 20 metallic, 2 to 35 potassium-containing material, 0 to 15 carbonate and 0 to 35 binder. Most advantageously, the flux contains by weight percent 65 to 90 fluoride compound, 5 to 35 oxide compound, 2 to 15 rare earth-containing material, 1 to 15 metallic, 3 to 35 potassium-containing material, 0 to 5 carbonate and 1 to 35 binder.
    Type: Grant
    Filed: April 16, 1993
    Date of Patent: May 3, 1994
    Assignee: Inco Alloys International, Inc.
    Inventors: Robert A. Bishel, Evan B. Hinshaw
  • Patent number: 5304346
    Abstract: The invention provides a welding material for welding iron containing low CTE alloys. The filler metal contains 25-55% nickel, 0-30% cobalt, 0.05-0.5% carbon, 0.25-5% niobium and balance iron with incidental impurities. The welding material also is operable with fluxes for submerged arc welding. In addition, the welding material may be configured to function as a flux coated or flux-cored electrode.
    Type: Grant
    Filed: October 23, 1992
    Date of Patent: April 19, 1994
    Assignee: INCO Alloys International, Inc.
    Inventors: David B. O'Donnell, Robert A. Bishel
  • Patent number: 5253848
    Abstract: A device for stopping flow of molten metal through a conduit having a longitudinal central passage. A ceramic seal is placed through a wall of a ceramic pipe for preventing flow of the molten metal through the opening in the wall of the ceramic pipe. A nonmetallic plug is located adjacent the ceramic seal. A lever arm adjacent the plug is used for depressing the ceramic seal and the nonmetallic plug vertically into the ceramic pipe through the longitudinal central passage to prevent flow of molten metal through the ceramic pipe.
    Type: Grant
    Filed: June 12, 1992
    Date of Patent: October 19, 1993
    Assignee: Inco Alloys International, Inc.
    Inventors: Robert D. Saunders, William L. Mankins
  • Patent number: 5240521
    Abstract: The invention provides a method for heat treating aluminum-base alloys. The method increases stress corrosion resistance after heating of the alloy to temperatures between 100.degree. C. and 150.degree. C. A dispersion strengthened aluminum-base alloy containing lithium and magnesium is shaped to form an object of substantially final form. The dispersion strengthened aluminum-base alloy is heated to a temperature between 160.degree. C. and 250.degree. C. for at least 3 hours. The heat treated object has increased stress corrosion resistance after exposure to temperatures between 100.degree. C. and 150.degree. C.
    Type: Grant
    Filed: July 12, 1991
    Date of Patent: August 31, 1993
    Assignee: Inco Alloys International, Inc.
    Inventors: James R. Crum, Robert D. Schelleng, James McEwen, John H. Weber
  • Patent number: 5226980
    Abstract: A novel oxide-dispersion strengthened type heat-resistant alloy is provided for use of preparing furnace members such as a skid rail. The alloy consists essentially of up to about 0.2% C+N, up to about 2.0% Si, up to about 2.0% Mn, about 15 to 35% Ni and about 0.2 to 4% Ta, and the balance of Fe, and contains about 0.1-2% of fine particles of high melting point metal oxide such as Y.sub.2 O.sub.3 dispersed in the austenite matrix.The alloy exhibits excellent properties of anti-hot deformation, oxidation resistance, abrasion resistance and thermal shock resistance.
    Type: Grant
    Filed: April 8, 1992
    Date of Patent: July 13, 1993
    Assignees: Diado Tokushuko Kabushiki Kaisha, Inco Alloys International, Inc.
    Inventors: Kenji Tsukuta, Tomohito Iikubo
  • Patent number: 5225675
    Abstract: The invention provides a method of improving cleaning operations for metals. A fluorescent dye is introduced into metal treatment solution and the surface of a metal product is treated with the treatment solution. The metal product with the treatment solution on its surface is worked to deform the metal product. The treatment solution is removed from the surface of the metal product to clean the metal product. The cleaned metal product is illuminated with excitation energy capable of stimulating fluorescence in the fluorescent dye. Fluorescence of the fluorescent dye is optically monitored to determine effectiveness of the removing step.
    Type: Grant
    Filed: January 22, 1992
    Date of Patent: July 6, 1993
    Assignee: Inco Alloys International, Inc.
    Inventor: David B. O'Donnell
  • Patent number: 5217545
    Abstract: A material for electric heater element sheathing, which has good weldability, is oxidation- and corrosion-resistant, and forms an eye-pleasing dark gray or black surface oxide, consists essentially of, by weight, from about 8.75-15.5% nickel, about 19.5-21.0% chromium, about 0.30-0.50 manganese, about 0.50-2.0% silicon, about 0.25-0.60% aluminum, about 0.25-1.0% titanium, up to about 0.05% carbon, up to about 0.005% sulfur, up to about 0.75% copper, up to about 1.0% cobalt, up to about 1.0% molybdenum, up to about 0.02% phosphorus, about 0.001-0.015% calcium plus magnesium and remainder essentially iron, wherein the Ferrite Number is between 1 and 15.
    Type: Grant
    Filed: May 27, 1992
    Date of Patent: June 8, 1993
    Assignee: Inco Alloys International, Inc.
    Inventors: Gaylord D. Smith, Walter H. Wendler, David B. O'Donnell
  • Patent number: 5209772
    Abstract: A dispersion-strengthened (DS) alloy, more particularly oxide-dispersion-strengthened (ODS) iron-based alloys which manifest resistant to oxidation at temperatures as high as 1300.degree. C. (approx. 2400.degree. F.) whereby the alloys are useful in the production of advanced aircraft gas turbine engine components and in demanding industrial applications.
    Type: Grant
    Filed: October 5, 1988
    Date of Patent: May 11, 1993
    Assignee: Inco Alloys International, Inc.
    Inventors: Raymond C. Benn, Gaylord D. Smith, John J. Fischer
  • Patent number: 5171381
    Abstract: The invention comprises an alloy having improved intermediate temperature properties at temperatures up to about 316.degree. C. The alloy contains (by weight percent) about 1-6% X contained as an intermetallic phase in the form of Al.sub.3 X. X is at least one selected from the group consisting of Nb, Ti and Zr. The alloy also contains 0.1-4% strengthener selected from the group consisting of Si and Mg. In addition, the alloy contains about 1-4% C and 0.1-2% O present as aluminum carbides and oxides for grain stabilization.
    Type: Grant
    Filed: February 28, 1991
    Date of Patent: December 15, 1992
    Assignee: Inco Alloys International, Inc.
    Inventors: Prakash K. Mirchandani, Arunkumar S. Watwe, Walter E. Mattson
  • Patent number: 5171968
    Abstract: The invention provides a welding electrode useful for reducing nitrogen porosity in a weld. A metallic base having 1.5 to 6 weight percent titanium, balance essentially nickel is used. The resulting deposit has less than 0.5 weight percent titanium to ensure close match of tolerances. A flux is used in combination with the metallic base to control arc behavior, atmosphere content and slag characteristics.
    Type: Grant
    Filed: September 30, 1991
    Date of Patent: December 15, 1992
    Assignee: Inco Alloys International, Inc.
    Inventors: Thomas O. Bates, Robert A. Bishel, David B. O'Donnell
  • Patent number: 5169461
    Abstract: The alloy of the invention has improved intermediate temperature properties at temperatures up to about 482.degree. C. The alloy contains (by weight percent) a total of about 6-12% X contained as an intermetallic phase in the form of Al.sub.3 X. X is selected from the group consisting of Nb, Ti and Zr. The alloy also contains about 0.1-4% strengthener selected from the group consisting of Co, Cr, Mn, Mo, Ni, Si, V, Nb when Nb is not selected as X and Zr when Zr is not selected as X. In addition, the alloy contains about 1-4% C and about 0.1-2% O.
    Type: Grant
    Filed: June 6, 1991
    Date of Patent: December 8, 1992
    Assignee: Inco Alloys International, Inc.
    Inventors: Arunkumar S. Watwe, Prakash K. Mirchandani, Walter E. Mattson
  • Patent number: 5167728
    Abstract: The process of the invention relates to forming MA iron-base ODS alloys. A billet of iron-base ODS alloy is provided. The billet is consolidated at a temperature within a predetermined range of sufficient temperature for formation of coarse and/or fine grain sizes during a final heat treatment. The consolidated billet is worked into final form. The object is annealed to recrystallize grains to a size determined by the temperature of the consolidation and the working of the extruded billet.
    Type: Grant
    Filed: April 24, 1991
    Date of Patent: December 1, 1992
    Assignee: Inco Alloys International, Inc.
    Inventor: John H. Weber
  • Patent number: 5160382
    Abstract: A material for electric heater element sheathing, which has good weldability, is oxidation- and corrosion-resistant, and forms an eye-pleasing dark gray or black surface oxide, consists essentially of, by weight, from about 8.75-15.5% nickel, about 19.5-21.0% chromium, about 0.30-0.50 manganese, about 0.50-2.0% silicon, about 0.25-0.60% aluminum, about 0.25-1.0% titanium, up to about 0.05% carbon, up to about 0.005% sulfur, up to about 0.75% copper, up to about 1.0% cobalt, up to about 1.0% molybdenum, up to about 0.02% phosphorus, about 0.001-0.015% calcium plus magnesium and remainder essentially iron, wherein the Ferrite Number is between 3 and 15.
    Type: Grant
    Filed: January 17, 1992
    Date of Patent: November 3, 1992
    Assignee: Inco Alloys International, Inc.
    Inventors: Gaylord D. Smith, Walter H. Wendler, David B. O'Donnell
  • Patent number: 5139236
    Abstract: A furnace system particularly adapted for use with a continuous upcaster. Instead of employing discrete furnaces, tundishes, ladles and the like, the instant unitary system employs a furnace, a feeding mechanism for directly introducing material into the furnace and a plasma torch to melt the material. The rate of material entering the furnace is balanced by the quantity of product emerging from the upcaster.
    Type: Grant
    Filed: April 11, 1991
    Date of Patent: August 18, 1992
    Assignee: Inco Alloys International, Inc.
    Inventor: William L. Mankins
  • Patent number: 5124530
    Abstract: The invention provides a coated electrode suitable for welding stainless steel. The coated electrode uses a stainless steel core wire. The flux contains by weight percent a total of 0 to 14.5 alkali metal and aluminum fluoride, about 0.5 to 12.5 cerium fluoride, a total of about 10 to 30 alkali metal and manganese carbonate, about 2 to 25 cerium oxide plus zirconium, about 0 to 25 chromium, about 0 to 10 manganese, about 5 to 15 total metal fluorides, and balance rutile. A binder holds the flux to the stainless steel core.
    Type: Grant
    Filed: February 5, 1991
    Date of Patent: June 23, 1992
    Assignee: Inco Alloys International, Inc.
    Inventors: David B. O'Donnell, Robert A. Bishel
  • Patent number: RE34262
    Abstract: High modulus aluminum-base alloys comprise mechanically alloyed aluminum-base compositions contain 10-25% titanium part of which may be replaced by vanadium or zirconium. Within described limits the alloys can contain elements other than oxygen and carbon ordinarily derived from the process control agent used in mechanical alloying.
    Type: Grant
    Filed: May 28, 1991
    Date of Patent: May 25, 1993
    Assignee: Inco Alloys International, Inc.
    Inventors: Raymond C. Benn, Prakash K. Mirchandani, Walter E. Mattson