Patents by Inventor Kivilcim Onal
Kivilcim Onal has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9957598Abstract: A coated article is disclosed including a substrate, a bond coating, and a thermally insulating top coating. The substrate includes a substrate surface and a substrate material at the substrate surface. The bond coating is disposed on and contacts the substrate surface, and includes the substrate material and a bond coating surface distal from the substrate surface. The bond coating surface includes a greater surface roughness than the substrate surface. The thermally insulating top coating is disposed on and contacts the bond coating surface. A method for forming the coated article includes applying the bond coating to the substrate surface, and applying the thermally insulating top coating to the bond coating surface.Type: GrantFiled: February 29, 2016Date of Patent: May 1, 2018Assignee: General Electric CompanyInventor: Kivilcim Onal
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Publication number: 20180009051Abstract: A method of providing an oxidation resistant coating is disclosed. The method includes providing a substrate having a first surface and cooling holes. A portable coating device includes electro-spark deposition (ESD) equipment and an ESD torch connected with the ESD equipment. The ESD torch has an inert gas source and a rotary electrode conductive material. The rotary electrode is positioned within the ESD torch, and is shielded by an inert gas. The rotary electrode applies a compositionally controlled protective coating to the first surface of the substrate. Then the rotary electrode is inserted into the cooling hole and generates an electrospark between rotary ESD electrode and the substrate to form a rounded edge and deposit a coating of electrode material alloy at a cooling hole edge.Type: ApplicationFiled: September 7, 2017Publication date: January 11, 2018Inventors: Dechao LIN, Ibrahim UCOK, Kivilcim ONAL
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Patent number: 9789557Abstract: A method of providing an oxidation resistant coating is disclosed. The method includes providing a substrate having a first surface and cooling holes. A portable coating device includes electro-spark deposition (ESD) equipment and an ESD torch connected with the ESD equipment. The ESD torch has an inert gas source and a rotary electrode conductive material. The rotary electrode is positioned within the ESD torch, and is shielded by an inert gas. The rotary electrode applies a compositionally controlled protective coating to the first surface of the substrate. Then the rotary electrode is inserted into the cooling hole and generates an electrospark between rotary ESD electrode and the substrate to form a rounded edge and deposit a coating of electrode material alloy at a cooling hole edge.Type: GrantFiled: August 3, 2015Date of Patent: October 17, 2017Assignee: General Electric CompanyInventors: Dechao Lin, Ibrahim Ucok, Kivilcim Onal
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Publication number: 20170247784Abstract: A coated article is disclosed including a substrate, a bond coating, and a thermally insulating top coating. The substrate includes a substrate surface and a substrate material at the substrate surface. The bond coating is disposed on and contacts the substrate surface, and includes the substrate material and a bond coating surface distal from the substrate surface. The bond coating surface includes a greater surface roughness than the substrate surface. The thermally insulating top coating is disposed on and contacts the bond coating surface. A method for forming the coated article includes applying the bond coating to the substrate surface, and applying the thermally insulating top coating to the bond coating surface.Type: ApplicationFiled: February 29, 2016Publication date: August 31, 2017Inventor: Kivilcim ONAL
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Patent number: 9511436Abstract: A composite composition that includes an MCrAlX alloy and a nano-oxide ceramic is disclosed. In the formula, M includes nickel, cobalt, iron, or a combination thereof, and X includes yttrium, hafnium, or a combination thereof, from about 0.001 percent to about 2 percent by weight of the alloy. The amount of the nano-oxide ceramic is greater than about 40 percent, by volume of the composition. A protective covering that includes the composite composition is also disclosed. The protective covering can be attached to a tip portion of a blade with a braze material. A method for joining a protective covering to a tip portion of a blade, and a method for repair of a blade, are also provided.Type: GrantFiled: November 8, 2013Date of Patent: December 6, 2016Assignee: General Electric CompanyInventors: Sundeep Kumar, Anand Krishnamurthy, Kivilcim Onal, Pazhayannur Ramanathan Subramanian, Dennis Michael Gray, Padmaja Parakala
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Publication number: 20160031033Abstract: A method of providing an oxidation resistant coating is disclosed. The method includes providing a substrate having a first surface and cooling holes. A portable coating device includes electro-spark deposition (ESD) equipment and an ESD torch connected with the ESD equipment. The ESD torch has an inert gas source and a rotary electrode conductive material. The rotary electrode is positioned within the ESD torch, and is shielded by an inert gas. The rotary electrode applies a compositionally controlled protective coating to the first surface of the substrate. Then the rotary electrode is inserted into the cooling hole and generates an electrospark between rotary ESD electrode and the substrate to form a rounded edge and deposit a coating of electrode material alloy at a cooling hole edge.Type: ApplicationFiled: August 3, 2015Publication date: February 4, 2016Inventors: Dechao LIN, Ibrahim UCOK, Kivilcim ONAL
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Publication number: 20150132605Abstract: A composite composition that includes an MCrAlX alloy and a nano-oxide ceramic is disclosed. In the formula, M includes nickel, cobalt, iron, or a combination thereof, and X includes yttrium, hafnium, or a combination thereof, from about 0.001 percent to about 2 percent by weight of the alloy. The amount of the nano-oxide ceramic is greater than about 40 percent, by volume of the composition. A protective covering that includes the composite composition is also disclosed. The protective covering can be attached to a tip portion of a blade with a braze material. A method for joining a protective covering to a tip portion of a blade, and a method for repair of a blade, are also provided.Type: ApplicationFiled: November 8, 2013Publication date: May 14, 2015Applicant: General Electric CompanyInventors: Sundeep Kumar, Anand Krishnamurthy, Kivilcim Onal, Pazhayannur Ramanathan Subramanian, Dennis Michael Gray, Padmaja Parakala
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Patent number: 9023423Abstract: A method of coating a metal substrate such as the components in second and third stages of gas turbine engines in order to increase the oxidation and corrosion resistance of the metal substrate under high temperature operating conditions, the method including the steps of forming a powdered mixture of a high-melt superalloy or MCrAlY component, where M comprises Fe, Ni and/or Co, and a low-melt component containing about 2-5 wt. % silicon, boron or hafnium, applying the powdered mixture to the surface of the metal substrate at room temperature using an atomized spray to form a uniform surface coating, and then heating the coated substrate surface under vacuum conditions to a temperature in the range of about 1900° F. to 2275° F. to obtain a uniform coating composition providing oxidation resistance to the underlying substrate.Type: GrantFiled: October 7, 2009Date of Patent: May 5, 2015Assignee: General Electric CompanyInventors: David Vincent Bucci, Kivilcim Onal Hance, Warren Martin Andre Miglietti, Canan Uslu Hardwicke
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Publication number: 20140363698Abstract: A composition useful as a bond coat is provided. The composition includes about 3% to about 7% chromium, about 10% to about 30% nickel, about 12% to about 18% aluminum, about 0.0005% to about 0.15% yttrium, about 0.0% to about 16% strengtheners, balance cobalt, and incidental impurities. Also provided is a component including a substrate having at least one layer of the composition applied thereto.Type: ApplicationFiled: June 11, 2013Publication date: December 11, 2014Inventor: Kivilcim ONAL
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Publication number: 20140050938Abstract: A method of providing an oxidation resistant coating is disclosed. The method includes providing a substrate having a first surface and cooling holes. A portable coating device includes electro-spark deposition (ESD) equipment and an ESD torch connected with the ESD equipment. The ESD torch has an inert gas source and a rotary electrode conductive material. The rotary electrode is positioned within the ESD torch, and is shielded by an inert gas. The rotary electrode applies a compositionally controlled protective coating to the first surface of the substrate. Then the rotary electrode is inserted into the cooling hole and generates an electrospark between rotary ESD electrode and the substrate to form a rounded edge and deposit a coating of electrode material alloy at a cooling hole edge.Type: ApplicationFiled: August 14, 2012Publication date: February 20, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Dechao LIN, Ibrahim UCOK, Kivilcim ONAL
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Publication number: 20130157078Abstract: In an exemplary embodiment, a high temperature oxidation and hot corrosion resistant MCrAlX alloy is disclosed, wherein, by weight of the alloy, M comprises nickel in an amount of at least about 30 percent and X comprises from about 0.005 percent to about 0.19 percent yttrium. In another exemplary embodiment, a coated article is disclosed. The article includes a substrate having a surface. The article also includes a bond coat disposed on the surface, the bond coat comprising a high temperature oxidation and hot corrosion resistant MCrAlX alloy, wherein, by weight of the alloy, M comprises at least about 30 percent nickel and X comprises about 0.005 percent to about 0.19 percent yttrium.Type: ApplicationFiled: December 19, 2011Publication date: June 20, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Kivilcim Onal, Canan Uslu Hardwicke, Jon Conrad Schaeffer
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Publication number: 20130115072Abstract: In an exemplary embodiment, a high temperature oxidation and hot corrosion resistant MCrAlX alloy is disclosed, wherein M comprises cobalt and X comprises, by weight of the alloy, from about 0.001 percent to less than 0.19 percent yttrium. In these alloys, X may also optionally include silicon, including, by weight of the alloy, up to about 1.5 percent. In another exemplary embodiment, a coated article is disclosed. The coated article includes a substrate having a surface. The article also includes a bond coat disposed on the surface. The bond coat comprises a high temperature oxidation and hot corrosion resistant MCrAlX alloy, wherein M comprises cobalt and X comprises, by weight of the alloy, from about 0.001 percent to less than 0.19 percent yttrium.Type: ApplicationFiled: November 9, 2011Publication date: May 9, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Kivilcim Onal, David Vincent Bucci, Canan Uslu Hardwicke, David Austin Wark
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Publication number: 20110081480Abstract: A method of coating a metal substrate such as the components in second and third stages of gas turbine engines in order to increase the oxidation and corrosion resistance of the metal substrate under high temperature operating conditions, the method including the steps of forming a powdered mixture of a high-melt superalloy or MCrAlY component, where M comprises Fe, Ni and/or Co, and a low-melt component containing about 2-5 wt. % silicon, boron or hafnium, applying the powdered mixture to the surface of the metal substrate at room temperature using an atomized spray to form a uniform surface coating, and then heating the coated substrate surface under vacuum conditions to a temperature in the range of about 1900° F. to 2275° F. to obtain a uniform coating composition providing oxidation resistance to the underlying substrate.Type: ApplicationFiled: October 7, 2009Publication date: April 7, 2011Inventors: David Vincent Bucci, Kivilcim Onal Hance, Warren Martin Andre Miglietti, Canan Uslu Hardwicke
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Publication number: 20110059332Abstract: Composition containing a MCrAlY, wherein M is selected from the group consisting of cobalt (Co), nickel (Ni), iron (Fe) and mixtures thereof, and germanium in an amount of about 10% by weight or less of germanium. Coated articles coated with the composition are also provided.Type: ApplicationFiled: September 10, 2009Publication date: March 10, 2011Inventors: Canan Uslu Hardwicke, Kivilcim Onal Hance, Paul Stephen DiMascio