Patents by Inventor Heike Hattendorf

Heike Hattendorf 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).

  • Patent number: 11098389
    Abstract: Hardened nickel-chromium-titanium-aluminum wrought alloy contains, (in mass %) 5-35% chromium, 1.0-3.0% titanium, 0.6-2.0% aluminum, 0.005-0.10% carbon, 0.0005-0.050% nitrogen, 0.0005-0.030% phosphorus, max. of each (next eleven) 0.010% sulfur 0.020% oxygen 0.70% silicon 2.0% manganese 0.05% magnesium 0.05% calcium 2.0% molybdenum 2.0% tungsten 0.5% niobium 0.5% copper 0.5% vanadium, 0-20% Fe, 0-15% cobalt, 0-0.20% Zr, 0.0001-0.008% boron, the remainder nickel and usual impurities. The nickel content is greater than 35%. Cr+Fe+Co?26% fh?0 fh=6.49+3.88 Ti+1.36 Al?0.301 Fe+(0.759?0.0209 Co) Co?0.428 Cr?28.2 C.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: August 24, 2021
    Assignee: VDM Metals International GmbH
    Inventors: Heike Hattendorf, Jutta Kloewer
  • Publication number: 20210115536
    Abstract: A nickel-chromium-aluminum alloy as powder is used for additive manufacturing, wherein the powder consists of spherical particles of a size of 5 to 250 pm, and wherein this alloy consists of (in % by weight) 24 to 33% chromium, 1.8 to 4.0% aluminum, 0.10 to 7.0% iron, 0.001 to 0.50% silicon, 0.005 to 2.0% manganese, 0.00 to 0.60% titanium, 0.0 to 0.05% magnesium and/or calcium respectively, 0.005 to 0.12% carbon, 0.001 to 0.050% nitrogen, 0.00001-0.100% oxygen, 0.001 to 0.030% phosphorus, a maximum of 0.010% sulfur, a maximum of 2.0% molybdenum, a maximum of 2.0% tungsten, the remainder nickel and the usual process-related impurities, wherein, with a pore size >1 pm, the powder has total inclusions of 0.0-4% of the pore surface area.
    Type: Application
    Filed: March 14, 2019
    Publication date: April 22, 2021
    Applicant: VDM Metals International GmbH
    Inventors: Heike HATTENDORF, Christina SCHMIDT
  • Publication number: 20210078098
    Abstract: 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: Application
    Filed: August 10, 2017
    Publication date: March 18, 2021
    Inventors: Franz WINTER, Claudius SCHINDLER, Franz-Josef WAHLERS, Jutta KLOEWER, Bodo GEHRMANN, Heike HATTENDORF
  • Patent number: 10923248
    Abstract: A method for producing a metal film from an over 50% nickel alloy melts more than one ton of the alloy in a furnace, followed by VOD or VLF system treatment, then pouring off to form a pre-product, followed by re-melting by VAR and/or ESU. The pre-product is annealed 1-300 hours between 800 and 1350° C. under air or protection gas, then hot-formed between 1300 and 600° C., such that the pre-product then has 1-100 mm thickness after the forming and is not recrystallized, recovered, and/or (dynamically) recrystallized having a grain size below 300 ?m. The pre-product is pickled, then cold-formed to produce a film having 10-600 ?m end thickness and a deformation ratio greater than 90%. The film is cut into 5-300 mm strips, annealed 1 second to 5 hours under protection gas between 600 and 1200° C. in a continuous furnace, then recrystallized to have a high cubic texture proportion.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: February 16, 2021
    Assignee: VDM Metals International GmbH
    Inventors: Nicole De Boer, Stefan Gilges, Heike Hattendorf, Andreas Heckmann
  • Patent number: 10870908
    Abstract: Age-hardening nickel-chromium-cobalt-titanium-aluminum wrought alloy with very good wear resistance combined with very good creep strength, good high-temperature corrosion resistance and good processability, the alloy including (in % by mass) >18 to 26% chromium, 1.5 to 3.0% titanium, 0.6 to 2.0% aluminum, 5.0 to 40% cobalt, 0.005 to 0.10% carbon, 0.0005 to 0.050% nitrogen, 0.0005 to 0.030% phosphorus, max. 0.010% sulfur, max. 0.020% oxygen, max. 0.70% silicon, max. 2.0% manganese, max. 0.05% magnesium, max. 0.05% calcium, max. 0.5% molybdenum, max. 0.5% tungsten, max. 0.2% niobium, max. 0.5% copper, max. 0.5% vanadium, optionally 0 to 20% Fe, optionally 0 to 0.20% Zr, optionally 0.0001 to 0.008% boron, optionally 0-0.20% Y, La, Ce, Ce mixed metal, and/or Hf, and/or 0-0.60% Ta, remainder nickel and the conventional process-related impurities are adjusted in contents of max. 0.002% Pb, max. 0.002% Zn, max. 0.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: December 22, 2020
    Assignee: VDM Metals International GmbH
    Inventor: Heike Hattendorf
  • Publication number: 20200172997
    Abstract: A high-temperature nickel-base alloy consists of (in wt. %): C: 0.04-0.1%, S: max. 0.01%, N: max. 0.05%, Cr: 24-28%, Mn: max. 0.3%, Si: max. 0.3%, Mo: 1-6%, Ti: 0.5-3%, Nb: 0.001-0.1%, Cu: max. 0.2%, Fe: 0.1-0.7%, P: max. 0.015%, Al: 0.5-2%, Mg: max. 0.01%, Ca: max. 0.01%, V: 0.01-0.5%, Zr: max. 0.1%, W: 0.2-2%, Co: 17-21%, B: max. 0.01%, O: max. 0.01%, with the rest being Ni, as well as melting-related impurities.
    Type: Application
    Filed: July 24, 2018
    Publication date: June 4, 2020
    Applicant: VDM Metals International GmbH
    Inventors: Juergen KIESE, Nicole DE BOER, Heike HATTENDORF
  • Patent number: 10196721
    Abstract: An iron-chromium-aluminum alloy with improved heat resistance, low chromium vaporization rate and good processability, comprising (in % by mass), 2.0 to 4.5% Al, 12 to 25% Cr, 1.0 to 4% W, 0.25 to 2.0% Nb, 0.05 to 1.2% Si, 0.001 to 0.70% Mn, 0.001 to 0.030% C, 0.0001 to 0.05% Mg, 0.0001 to 0.03% Ca, 0.001 to 0.030% P, max. 0.03% N, max. 0.01% S, remainder iron and the usual melting-related impurities.
    Type: Grant
    Filed: June 6, 2012
    Date of Patent: February 5, 2019
    Assignee: VDM Metals International GmbH
    Inventors: Heike Hattendorf, Bernd Kuhn, Thomas Eckardt, Tilmann Beck, Willem Quadakkers, Werner Theisen, Nilofar Nabiran
  • Patent number: 9932656
    Abstract: A nickel-based alloy, consisting of (in mass %) 1.5-3.0% Si, 1.5-3.0% Al, and >0.1-3.0% Cr, where Al+Si+Cr is ?4.0 and ?8.0 for the contents of Si, Al, and Cr in %; 0.005-0.20% Fe, 0.01-0.20% Y, and <0.001-0.20% of one or more the elements Hf, Zr, La, Ce, Ti, where Y+0.5*Hf+Zr+1.8*Ti+0.6*(La+Ce) is ?0.02 and ?0.30 for the contents of Y, Hf, Zr, La, Ce, and Ti in %; 0.001-0.10% C; 0.0005-0.10% N; 0.001-0.20% Mn; 0.0001-0.08% Mg; 0.0001-0.010% O; max. 0.015% S; max. 0.80% Cu; Ni remainder; and the usual production-related impurities.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: April 3, 2018
    Assignee: VDM Metals International GmbH
    Inventors: Heike Hattendorf, Frank Scheide, Larry Paul
  • Patent number: 9657373
    Abstract: A nickel-chromium-aluminum-iron alloy includes (in wt.-%) 24 to 33% chromium, 1.8 to 4.0% aluminum, 0.10 to 7.0% iron, 0.001 to 0.50% silicon, 0.005 to 2.0% manganese, 0.00 to 0.60% titanium, 0.0002 to 0.05% each of magnesium and/or calcium, 0.005 to 0.12% carbon, 0.001 to 0.050% nitrogen, 0.0001 to 0.020% oxygen, 0.001 to 0.030% phosphorus, not more than 0.010% sulfur, not more than 2.0% molybdenum, not more than 2.0% tungsten, the remainder nickel and the usual process-related impurities, wherein the following relations must be satisfied: Cr+Al?28 (2a) and Fp?39.9 (3a) with Fp=Cr+0.272*Fe+2.36*Al+2.22*Si+2.48*Ti+0.374*Mo+0.538*W?11.8*C (4a), wherein Cr, Fe, Al, Si, Ti, Mo, W and C is the concentration of the respective elements in % by mass.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: May 23, 2017
    Assignee: VDM Metals International GmbH
    Inventor: Heike Hattendorf
  • Patent number: 9650698
    Abstract: The invention relates to a nickel-chromium alloy comprising (in wt.-%) 29 to 37% chromium, 0.001 to 1.8% aluminum, 0.10 to 7.0% iron, 0.001 to 0.50% silicon, 0.005 to 2.0% manganese, 0.00 to 1.00% titanium and/or 0.00 to 1.10% niobium, 0.0002 to 0.05% each of magnesium and/or calcium, 0.005 to 12% carbon, 0.001 to 0.050% nitrogen, 0.001 to 0.030% phosphorus, 0.0001 to 0.020% oxygen, not more than 0.010% sulfur, not more than 2.0% molybdenum, not more than 2.0% tungsten, the remainder nickel and the usual process-related impurities, wherein the following relations must be satisfied: Cr+Al?30 (2a) and Fp?39.9 (3a) with Fp=Cr+0.272*Fe+2.36*Al+2.22*Si+2.48*Ti+0.374*Mo+0.538*W?11.8*C (4a), wherein Cr, Fe, Al, Si, Ti, Mo, W and C is the concentration of the respective elements in % by mass.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: May 16, 2017
    Assignee: VDM Metals International GmbH
    Inventor: Heike Hattendorf
  • Publication number: 20160319402
    Abstract: Age-hardening nickel-chromium cobalt-titanium-aluminum wrought alloy with very good wear resistance combined with very good creep strength, good high-temperature corrosion resistance and good processability, the alloy including (in % by mass)>18 to 26% chromium, 1.5 to 3.0% titanium, 0.6 to 2.0% aluminum, 5.0 to 40% cobalt, 0.005 to 0.10% carbon, 0.0005 to 0.050% nitrogen, 0.0005 to 0.030% phosphorus, max. 0.010% sulfur, max. 0.020% oxygen, max. 0.70% silicon, max. 2.0% manganese, max. 0.05% magnesium, max. 0.05% calcium, max. 0.5% molybdenum, max. 0.5% tungsten, max. 0.2% niobium, max. 0.5% copper, max. 0.5% vanadium, optionally 0 to 20% Fe, optionally 0 to 0.20% Zr, optionally 0.0001 to 0.008% boron, optionally 0-0.20% Y, La, Ce, Ce mixed metal, and/or Hf, and/or 0-0.60% Ta, remainder nickel and the conventional process-related impurities are adjusted in contents of max. 0.002% Pb, max. 0.002% Zn, max. 0.
    Type: Application
    Filed: January 12, 2015
    Publication date: November 3, 2016
    Applicant: VDM Metals GmbH
    Inventor: Heike HATTENDORF
  • Publication number: 20160312341
    Abstract: Hardened nickel-chromium-titanium-aluminum wrought alloy with good wear resistance as well as very good resistance to corrosion at a high temperature, good creep resistance, and good workability contains, (in mass %) 5-35% chromium, 1.0-3.0% titanium, 0.6-2.0% aluminum, 0.005-0.10% carbon, 0.0005-0.050% nitrogen, 0.0005-0.030% phosphorus, max. 0.010% sulfur, max. 0.020% oxygen, max. 0.70% silicon, max. 2.0% manganese, max. 0.05% magnesium, max. 0.05% calcium, max. 2.0% molybdenum, max. 2.0% tungsten, max. 0.5% niobium, max. 0.5% copper, max. 0.5% vanadium, if required, 0-20% Fe, if required, 0-15% cobalt, if required 0-0.20% Zr, if required 0.0001-0.008% boron, the remainder being nickel and the usual impurities related to the method. The nickel content is greater than 35%. The relation of Cr+Fe+Co?26% (1) must be fulfilled in order to achieve good wear resistance and the relation fh?0 (2a) in which fh=6.49+3.88 Ti+1.36 Al?0.301 Fe+(0.759?0.0209 Co) Co?0.428 Cr?28.
    Type: Application
    Filed: January 12, 2015
    Publication date: October 27, 2016
    Applicant: VDM Metals GmbH
    Inventors: Heike HATTENDORF, Jutta KLOEWER
  • Patent number: 9476110
    Abstract: The invention relates to a nickel-chromium-aluminum-iron alloy, comprising (in wt %) 12 to 28% chromium, 1.8 to 3.0% aluminum, 1.0 to 15% iron, 0.01 to 0.5% silicon, 0.005 to 0.5% manganese, 0.01 to 0.20% yttrium, 0.02 to 0.60% titanium, 0.01 to 0.2% zirconium, 0.0002 to 0.05% magnesium, 0.0001 to 0.05% calcium, 0.03 to 0.11% carbon, 0.003 to 0.05% nitrogen, 0.0005 to 0.008% boron, 0.0001 to 0.010% oxygen, 0.001 to 0.030% phosphorus, max. 0.010% sulfur, max. 0.5% molybdenum, max. 0.5% tungsten, the remainder nickel and the common contaminants resulting from the process, wherein the following relations must be satisfied: 7.7C?x·a<1.0, wherein a=PN if PN>0 or a=0 if PN?0. Here, x=(1.0 Ti+1.06 Zr)/(0.251 Ti+0.132 Zr), PN=0.251 Ti+0.132 Zr?0.857 N, and Ti, Zr, N, and C are the concentration of the respective element in mass percent.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: October 25, 2016
    Assignee: VDM Metals International GmbH
    Inventors: Heike Hattendorf, Jutta Kloewer
  • Publication number: 20160289807
    Abstract: Age-hardening nickel-chromium-iron-titanium-aluminum wrought alloy with very good wear resistance and at the same time good creep strength, good high-temperature corrosion resistance and good processability, with (in mass-%)>18 to 26% chromium, 1.5 to 3.0% titanium, 0.6 to 2.0% aluminum, 7.0 to 40% iron, 0.005 to 0.10% carbon, 0.0005 to 0.050% nitrogen, 0.0005 to 0.030% phosphorus, max. 0.010% sulfur, max. 0.020% oxygen, max. 0.70% silicon, max. 2.0% manganese, max. 0.05% magnesium, max. 0.05% calcium, max. 0.5% molybdenum, max. 0.5% tungsten, max. 0.2% niobium, max. 0.5% copper, max. 0.5% vanadium, if necessary 0 to 15% Co, if necessary 0 to 0.20% Zr, if necessary 0.0001 to 0.008% boron, wherein optionally the following elements may also be contained in the alloy: Y 0-0.20% and/or La 0-0.20% and/or Ce 0-0.20% and/or Ce mixed metal 0-0.20% and/or Hf 0-0.20% and/or Ta 0-0.
    Type: Application
    Filed: January 12, 2015
    Publication date: October 6, 2016
    Applicant: VDM Metals GmbH
    Inventor: Heike HATTENDORF
  • Publication number: 20160071632
    Abstract: A method for producing a metal film from an alloy having more than 50% nickel includes the following steps: (a) the alloy is melted in volumes of more than one ton in a vacuum induction furnace, or open in an induction or arc furnace, followed by treatment in a VOD or VLF system, (b) the alloy is then poured off in blocks, electrodes or as continuous casting to form a pre-product, followed by single or multiple re-melting by VAR and/or ESU (c) the pre-product is then annealed between 800 and 1350° C. for 1-300 hours under air or protection gas, (d) the pre-product is then hot-formed between 1300 and 600° C. to reduce the thickness of the input material by the factor 1.
    Type: Application
    Filed: June 6, 2014
    Publication date: March 10, 2016
    Applicant: VDM METALS GMBH
    Inventors: Nicole DE BOER, Stefan GILGES, Heike HATTENDORF, Andreas HECKMANN
  • Publication number: 20160032425
    Abstract: A nickel-based alloy, consisting of (in mass %) 1.5-3.0% Si, 1.5-3.0% Al, and >0.1-3.0% Cr, where Al+Si+Cr is ?4.0 and ?8.0 for the contents of Si, Al, and Cr in %; 0.005-0.20% Fe, 0.01-0.20% Y, and <0.001-0.20% of one or more the elements Hf, Zr, La, Ce, Ti, where Y+0.5*Hf+Zr+1.8*Ti 0.6*(La+Ce) is ?0.02 and ?0.30 for the contents of Y, Hf, Zr, La, Ce, and Ti in %; 0.001-0.10% C; 0.0005-0.10% N; 0.001-0.20% Mn; 0.0001-0.08% Mg; 0.0001-0.010% O; max. 0.015% S; max. 0.80% Cu; Ni remainder; and the usual production-related impurities.
    Type: Application
    Filed: January 28, 2014
    Publication date: February 4, 2016
    Applicant: VDM Metals GmbH
    Inventors: Heike HATTENDORF, Frank SCHEIDE, Larry PAUL
  • Publication number: 20150305091
    Abstract: Iron-nickel-chromium-silicon alloy having (in % by weight) 34 to 42% nickel, 18 to 26% chromium, 1.0 to 2.5% silicon, and additives of 0.05 to 1% Al, 0.01 to 1% Mn, 0.01 to 0.26% lanthanum, 0.0005 to 0.05% magnesium, 0.01 to 0.14% carbon, 0.01 to 0.14% nitrogen, max. 0.01% sulfur, max. 0.005% B, remainder iron and the usual impurities resulting from the production process.
    Type: Application
    Filed: April 17, 2014
    Publication date: October 22, 2015
    Inventors: Heike HATTENDORF, Juergen WEBELSIEP
  • Publication number: 20150093288
    Abstract: The invention relates to a nickel-chromium alloy comprising (in wt.-%) 29 to 37% chromium, 0.001 to 1.8% aluminum, 0.10 to 7.0% iron, 0.001 to 0.50% silicon, 0.005 to 2.0% manganese, 0.00 to 1.00% titanium and/or 0.00 to 1.10% niobium, 0.0002 to 0.05% each of magnesium and/or calcium, 0.005 to 12% carbon, 0.001 to 0.050% nitrogen, 0.001 to 0.030% phosphorus, 0.0001 to 0.020% oxygen, not more than 0.010% sulfur, not more than 2.0% molybdenum, not more than 2.0% tungsten, the remainder nickel and the usual process-related impurities, wherein the following relations must be satisfied: Cr+Al?30 (2a) and Fp?39.9 (3a) with Fp=Cr+0.272*Fe+2.36*Al+2.22*Si+2.48*Ti+0.374*Mo+0.538*W?11.8*C (4a), wherein Cr, Fe, Al, Si, Ti, Mo, W and C is the concentration of the respective elements in % by mass.
    Type: Application
    Filed: May 15, 2013
    Publication date: April 2, 2015
    Inventor: Heike Hattendorf
  • Publication number: 20150050182
    Abstract: A nickel-chromium-aluminum-iron alloy includes (in wt.-%) 24 to 33% chromium, 1.8 to 4.0% aluminum, 0.10 to 7.0% iron, 0.001 to 0.50% silicon, 0.005 to 2.0% manganese, 0.00 to 0.60% titanium, 0.0002 to 0.05% each of magnesium and/or calcium, 0.005 to 0.12% carbon, 0.001 to 0.050% nitrogen, 0.0001 to 0.020% oxygen, 0.001 to 0.030% phosphorus, not more than 0.010% sulfur, not more than 2.0% molybdenum, not more than 2.0% tungsten, the remainder nickel and the usual process-related impurities, wherein the following relations must be satisfied: Cr+Al?28 (2a) and Fp?39.9 (3a) with Fp=Cr+0.272* Fe+2.36*Al+2.22 *Si+2.48*Ti+0.374*Mo+0.538*W?11.8*C (4a), wherein Cr, Fe, Al, Si, Ti, Mo, W and C is the concentration of the respective elements in % by mass.
    Type: Application
    Filed: May 15, 2013
    Publication date: February 19, 2015
    Applicant: VDM Metals GmbH
    Inventor: Heike Hattendorf
  • Publication number: 20140219855
    Abstract: An iron-chromium-aluminum alloy with improved heat resistance, low chromium vaporization rate and good processability, comprising (in % by mass), 2.0 to 4.5% Al, 12 to 25% Cr, 1.0 to 4% W, 0.25 to 2.0% Nb, 0.05 to 1.2% Si, 0.001 to 0.70% Mn, 0.001 to 0.030% C, 0.0001 to 0.05% Mg, 0.0001 to 0.03% Ca, 0.001 to 0.030% P, max. 0.03% N, max. 0.01% S, remainder iron and the usual melting-related impurities.
    Type: Application
    Filed: June 6, 2012
    Publication date: August 7, 2014
    Applicant: OUTOKUMPU VDM GMBH
    Inventors: Heike Hattendorf, Bernd Kuhn, Thomas Eckardt, Tilmann Beck, Willem Joe Quadakkers, Werner Theisen, Nilofar Nabiran