Patents by Inventor Bodo Gehrmann
Bodo Gehrmann 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: 12195827Abstract: A nickel alloy includes (in wt. %) Ni 50-55%, Cr 17-21%, Mo>0-9%, W 0-9%, Nb 1-5.7%, Ta>0-4.7%, Ti 0.1-3.0%, Al 0.4-4.0%, Co max. 3.0%, Mn max. 0.35%, Si max. 0.35%, Cu max. 0.23%, C 0.001-0.045%, S max. 0.01%, P 0.001-0.02%, B 0.001-0.01%, the remainder Fe and the conventional process-related impurities, wherein the following relations are provided: Nb+Ta 1-5.7% (1), Al+Ti>1.2-5% (2), Mo+W 3-9% (3), where Nb, Ta, Al and Ti are the concentration of the elements in question in wt. %.Type: GrantFiled: March 17, 2020Date of Patent: January 14, 2025Assignee: VDM Metals International GmbHInventors: Julia Botinha, Bodo Gehrmann, Helena Alves
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Publication number: 20240011128Abstract: A nickel-base alloy composition includes nickel as the main constituent and the further constituents in percent by weight (% by weight): 0.04 to 0.10% carbon (C), 8 to 13% tantalum (Ta), 12 to 20% chromium (Cr), 3 to 25% cobalt (Co), less than 0.03% manganese (Mn), less than 0.06% silicon (Si), 0 to 6% molybdenum (Mo), less than 5.0% iron (Fe), 2 to 4% aluminum (Al), less than 0.01% magnesium (Mg), less than 0.02% vanadium (V), 0 to 6% tungsten (W), less than 1% titanium (Ti), less than 0.03% yttrium (Y), 0.005 to 0.015% boron (B), less than 0.003% sulfur (S), 0.005 to 0.04% zirconium (Zr) and less than 3% hafnium. Additionally provided are an additive manufacturing method, a method of additively manufacturing a component part from a powder of the alloy composition provided, a corresponding intermediate alloy, and a component part consisting of the nickel-base superalloy.Type: ApplicationFiled: September 22, 2023Publication date: January 11, 2024Inventors: Kai Dörries, Joachim Rösler, Christoph Haberland, Juri Burow, Bodo Gehrmann, Sebastian Piegert
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Patent number: 11807916Abstract: Nickel-cobalt alloy for powder, wherein the contents (in wt %) are defined as follows: C>0-max. 0.1% S max. 0.015% Cr 13-23% Ni the rest (>30%) Mn max. 1.0% Si max. 1.0% Mo 1-6% Ti>0-3% Nb+Ta 3-8% Cu max. 0.5% Fe>0-max. 10% Al>0-<4.0% V up to 4% Zr>0-max. 0.1% Co>12-<35% W up to 4% Hf up to 3.0% O max. 0.1% N>0-max. 0.1% Mg>0-max. 0.01% B>0-max. 0.02% P>0-max. 0.03% Ar 0-max. 0.08% Se max. 0.0005% Bi max. 0.00005% Pb max. 0.Type: GrantFiled: July 1, 2020Date of Patent: November 7, 2023Assignee: VDM METALS INTERNATIONAL GMBHInventors: Bodo Gehrmann, Tatiana Hentrich, Christina Schmidt, Katrin Brunnert
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Publication number: 20220243306Abstract: Nickel-cobalt alloy for powder, wherein the contents (in wt %) are defined as follows: C>0-max. 0.1% S max. 0.015% Cr 13-23% Ni the rest (>30%) Mn max. 1.0% Si max. 1.0% Mo 1-6% Ti>0-3% Nb+Ta 3-8% Cu max. 0.5% Fe>0-max. 10% Al>0-<4.0% V up to 4% Zr>0-max. 0.1% Co>12-<35% W up to 4% Hf up to 3.0% O max. 0.1% N>0-max. 0.1% Mg>0-max. 0.01% B>0-max. 0.02% P>0-max. 0.03% Ar 0-max. 0.08% Se max. 0.0005% Bi max. 0.00005% Pb max. 0.Type: ApplicationFiled: July 1, 2020Publication date: August 4, 2022Applicant: VDM Metals International GmbHInventors: Bodo GEHRMANN, Tatiana HENTRICH, Christina SCHMIDT, Katrin BRUNNERT
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Patent number: 11344968Abstract: A roll-bonded clad metal sheet and a method for producing a roll-bonded clad metal sheet is provided. The roll-bonded clad sheet includes a metallic base material layer and a metallic cladding material layer which are joined to one another by a metallurgical bond. The metallic cladding material layer includes a nickel-based material whose chemical composition includes, in % by mass, a proportion of more than 50% of Ni and a proportion of 3.1% of Nb. The metallurgical bond is obtained by a thermomechanical rolling process including a first rolling phase for prerolling, a second rolling phase for final forming and a cooling time between the first rolling phase and the second rolling phase, wherein a final rolling temperature of the second rolling phase is set to a value equal to or less than 880° C.Type: GrantFiled: August 10, 2017Date of Patent: May 31, 2022Assignees: voestalpine Grobblech GmbH, VDM Metals International GmbHInventors: Franz Winter, Claudius Schindler, Franz-Josef Wahlers, Jutta Kloewer, Bodo Gehrmann, Heike Hattendorf
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Patent number: 11306380Abstract: In a method for preparing a nickel-based alloy, an electrode is produced by VIM, VOF or VLF, heat-treated in a furnace between 500 and 1300° C. for 10 to 336 hours to reduce stresses and aging, the heat-treatment being conducted for at least 10 hours and at most 48 hours at 1000° C. to 1300° C., and cooled to between room temperature and less than 900° C., then remelted using ESR at 3.0 to 10 kg/minute to form an ESR block which is cooled to between room temperature and less than 900° C., and remelted again using VAR at 3.0 to 10 kg/minute and a remelting rate fluctuation range of less than 15%, preferably 10%, ideally 5%; the remelted VAR block is heat-treated between 500 and 1250° C. for 10 to 336 hours, then shaped into the desired product shape and dimension by hot or cold forming.Type: GrantFiled: December 3, 2018Date of Patent: April 19, 2022Assignee: VDM Metals International GmbHInventors: Bodo Gehrmann, Burkhard Erpenbeck
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Publication number: 20220098704Abstract: A nickel alloy includes (in wt. %) Ni 50-55%, Cr 17-21%, Mo>0-9%, W 0-9%, Nb 1-5.7%, Ta>0-4.7%, Ti 0.1-3.0%, Al 0.4-4.0%, Co max. 3.0%, Mn max. 0.35%, Si max. 0.35%, Cu max. 0.23%, C 0.001-0.045%, S max. 0.01%, P 0.001-0.02%, B 0.001-0.01%, the remainder Fe and the conventional process-related impurities, wherein the following relations are provided: Nb+Ta 1-5.7% (1), Al+Ti>1.2-5% (2), Mo+W 3-9% (3), where Nb, Ta, Al and Ti are the concentration of the elements in question in wt. %.Type: ApplicationFiled: March 17, 2020Publication date: March 31, 2022Applicant: VDM Metals International GmbHInventors: Julia BOTINHA, Bodo GEHRMANN, Helena ALVES
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Publication number: 20210371963Abstract: In a method for preparing a nickel-based alloy, an electrode is produced by VIM, VOF or VLF, heat-treated in a furnace between 500 and 1300° C. for 10 to 336 hours to reduce stresses and aging, the heat-treatment being conducted for at least 10 hours and at most 48 hours at 1000° C. to 1300° C., and cooled to between room temperature and less than 900° C., then remelted using ESR at 3.0 to 10 kg/minute to form an ESR block which is cooled to between room temperature and less than 900° C., and remelted again using VAR at 3.0 to 10 kg/minute and a remelting rate fluctuation range of less than 15%, preferably 10%, ideally 5%; the remelted VAR block is heat-treated between 500 and 1250° C. for 10 to 336 hours, then shaped into the desired product shape and dimension by hot or cold forming.Type: ApplicationFiled: December 3, 2018Publication date: December 2, 2021Applicant: VDM Metals International GmbHInventors: Bodo GEHRMANN, Burkhard ERPENBECK
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Publication number: 20210078098Abstract: A roll-bonded clad metal sheet and a method for producing a roll-bonded clad metal sheet is provided. The roll-bonded clad sheet includes a metallic base material layer and a metallic cladding material layer which are joined to one another by a metallurgical bond. The metallic cladding material layer includes a nickel-based material whose chemical composition includes, in % by mass, a proportion of more than 50% of Ni and a proportion of 3.1% of Nb. The metallurgical bond is obtained by a thermomechanical rolling process including a first rolling phase for prerolling, a second rolling phase for final forming and a cooling time between the first rolling phase and the second rolling phase, wherein a final rolling temperature of the second rolling phase is set to a value equal to or less than 880° C.Type: ApplicationFiled: August 10, 2017Publication date: March 18, 2021Inventors: Franz WINTER, Claudius SCHINDLER, Franz-Josef WAHLERS, Jutta KLOEWER, Bodo GEHRMANN, Heike HATTENDORF
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Patent number: 8808475Abstract: Disclosed is a creep-resistant low-expansion iron-nickel alloy that is provided with increased mechanical resistance and contains 40 to 43 wt. % of Ni, a maximum of 0.1 wt. % of C, 2.0 to 3.5 wt. % of Ti, 0.1 to 1.5 wt. % of Al, 0.1 to 1.0 wt. % of Nb, 0.005 to 0.8 wt. % of Mn, 0.005 to 0.6 wt. % of Si, a maximum of 0.5 wt. % of Co, the remainder being composed of Fe and production-related impurities. Said alloy has a mean coefficient of thermal expansion <5×10<?6>/K in the temperature range of 20 to 200 DEG C.Type: GrantFiled: January 26, 2007Date of Patent: August 19, 2014Assignee: Outokumpu VDM GmbHInventors: Bodo Gehrmann, Bernd Boer
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Publication number: 20110056589Abstract: Disclosed is an iron-nickel alloy having the following composition, in % by mass: C 0.05 to 0.5%, Cr 0.2 to 2.0%, Ni 33 to 42%, Mn<0.1%, Si<0.1%, Mo 1.5 to 4.0%, Nb 0.01 to 0.5%, Al 0.1 to 0.8%, Mg 0.001 to 0.01%, V max. 0.1%, W 0.1 to 1.5%, Co max. 2.0%, the remainder Fe, and production-related impurities.Type: ApplicationFiled: April 29, 2009Publication date: March 10, 2011Applicant: THYSSENKRUPP VDM GMBHInventors: Bernd De Boer, Bodo Gehrmann
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Publication number: 20100175847Abstract: Use of an iron-nickel-cobalt alloy in CFC mould construction comprising (in % by mass) Ni from 30 to 35%, Co from 3 to 6%, Al from 0.001 to 0.1%, Mn from 0.005 to 0.5%, Si from 0.005 to 0.5%, C max. 0.1%, balance Fe and constituents resulting from production, with the alloy having a mean coefficient of thermal expansion in the temperature range from 20 to 200 DEG C of <2.0 OE10<?6>/K.Type: ApplicationFiled: January 26, 2007Publication date: July 15, 2010Inventors: Bodo Gehrmann, Bernd Boer
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Publication number: 20100059145Abstract: The invention relates to a metal foil having (in weight %) Ni 74-90%, W 10-26%, and Al and/or Mg and/or B contents of Al >0-max. 0.02%, Mg >0-max. 0.025%, B>0-max. 0.005%.Type: ApplicationFiled: April 14, 2008Publication date: March 11, 2010Applicants: THYSSENKRUPP VDM GMBH, ZENERGY POWER GMBHInventors: Heike Hattendorf, Bodo Gehrmann, Michael Baecker, Joerg Eickemeyer
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Publication number: 20090047167Abstract: Disclosed is a creep-resistant low-expansion iron-nickel alloy that is provided with increased mechanical resistance and contains 40 to 43 wt. % of Ni, a maximum of 0.1 wt. % of C, 2.0 to 3.5 wt. % of Ti, 0.1 to 1.5 wt. % of Al, 0.1 to 1.0 wt. % of Nb, 0.005 to 0.8 wt. % of Mn, 0.005 to 0.6 wt. % of Si, a maximum of 0.5 wt. % of Co, the remainder being composed of Fe and production-related impurities. Said alloy has a mean coefficient of thermal expansion <5×10<?6>/K in the temperature range of 20 to 200 DEG C.Type: ApplicationFiled: January 26, 2007Publication date: February 19, 2009Inventors: Bodo Gehrmann, Bernd Boer
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Publication number: 20050067067Abstract: A method for producing iron-nickel alloy strip for tensioned shadow masks for use in flat monitors and screens, includes the steps of forming an alloy having a composition, in mass %, of 35-38% Ni, 0.4-0.8% Mo, 0.1-0.3% Cr, 0.08-0.12% C, up to 1% Mn, up to 1% Si, up to 1% Nb, with the balance to total 100% being Fe and impurities; cold rolling the alloy composition to a predetermined final thickness to form a strip; and annealing the cold-rolled strip at predetermined temperatures over a range wherein a coercive field strength (Hc) of the alloy strip first decreases to a minimum value and then remains substantially constant as annealing temperature is increased; such that the annealed strip has a coercive field strength<100 A/m and a creep strain<0.1% at conditions of 460° C., and a load of 138 mPa, for 1 hour.Type: ApplicationFiled: August 2, 2002Publication date: March 31, 2005Applicant: Thyssenkrupp VDM GmbHInventors: Bodo Gehrmann, Janine Lindemann
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Publication number: 20040052675Abstract: The invention relates to creep-resistant iron-nickel alloys with a low thermal expansion coefficient that contain (in weight %) 0.008 to 0.12 C, 0.05 to 0.30% Mn, 0.05 to 0.30% Si, 0.2 to 0.9% Mo, 0.1 to 0.3% Cr, 0.03 to 0.15% Nb, a maximum content of 0.5% Co as well as a content of 36.0 to 36.5% Ni, and a balance of iron and production-related impurities. The alloys have a thermal expansion coefficient of less than 2.0×10−6/K in the temperature range of 20 to 100° C.Type: ApplicationFiled: July 22, 2003Publication date: March 18, 2004Inventors: Bodo Gehrmann, Burkhard Erpenbeck