Patents Assigned to VDM Metals International GmbH
  • Publication number: 20220243306
    Abstract: 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: Application
    Filed: July 1, 2020
    Publication date: August 4, 2022
    Applicant: VDM Metals International GmbH
    Inventors: Bodo GEHRMANN, Tatiana HENTRICH, Christina SCHMIDT, Katrin BRUNNERT
  • Publication number: 20220205066
    Abstract: A powder has the contents (in wt. %): C max. 0.5%, S max. 0.15%, in particular max. 0.03%, N max. 0.25%, Cr 14-35%, in particular 17-28%, Ni radical (>38%), Mn max. 4%, Si max. 1.5%, Mo >0-22%, Ti <4%, in particular <3.25%, Nb up to 6.0%, Cu up to 3%, in particular up to 0.5%, Fe <50%, P max. 0.05%, in particular max. 0.04%, Al up to 3.15%, in particular up to 2.5%, Mg max. 0.015%, V max. 0.6%, Zr max. 0.12%, in particular max. 0.1%, W up to 4.5%, in particular up to max. 3%, Co up to 28%, B<0.125%, O>0.00001-0.1% and impurities due to production, wherein Ni+Fe+Co represents 56-80% Nb+Ta<6.0%.
    Type: Application
    Filed: July 1, 2020
    Publication date: June 30, 2022
    Applicant: VDM Metals International GmbH
    Inventors: Christina SCHMIDT, Andreas HECKMANN
  • Publication number: 20220195560
    Abstract: A nickel-based alloy for powder has the contents (in wt.%): C 0.01-0.5%, S max. 0.5%, in particular max. 0.03%, Cr 20-25%, Ni radical Mn max. 1%, Si max. 1%, Mo up to 10%, Ti 0.25-0.6%, Nb up to 5.5%, Cu up to 5%, in particular up to 0.5%, Fe up to 25%, P max. 0.03%, in particular max. 0.02%, Al 0.8-1.5%, V max. 0.6%, Zr max. 0.12%, in particular max. 0.1%, Co up to 15%, B 0.001-0.125% O >0.00001-0.1% and impurities dependent on production. The carbon to boron ratio (C/B) is between 4 and 25.
    Type: Application
    Filed: July 1, 2020
    Publication date: June 23, 2022
    Applicant: VDM Metals International GmbH
    Inventor: Martin WOLF
  • Patent number: 11344968
    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: Grant
    Filed: August 10, 2017
    Date of Patent: May 31, 2022
    Assignees: voestalpine Grobblech GmbH, VDM Metals International GmbH
    Inventors: Franz Winter, Claudius Schindler, Franz-Josef Wahlers, Jutta Kloewer, Bodo Gehrmann, Heike Hattendorf
  • Patent number: 11306380
    Abstract: 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: Grant
    Filed: December 3, 2018
    Date of Patent: April 19, 2022
    Assignee: VDM Metals International GmbH
    Inventors: Bodo Gehrmann, Burkhard Erpenbeck
  • Publication number: 20220098704
    Abstract: 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: Application
    Filed: March 17, 2020
    Publication date: March 31, 2022
    Applicant: VDM Metals International GmbH
    Inventors: Julia BOTINHA, Bodo GEHRMANN, Helena ALVES
  • Patent number: 11193186
    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: Grant
    Filed: July 24, 2018
    Date of Patent: December 7, 2021
    Assignee: VDM Metals International GmbH
    Inventors: Juergen Kiese, Nicole De Boer, Heike Hattendorf
  • Publication number: 20210371963
    Abstract: 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: Application
    Filed: December 3, 2018
    Publication date: December 2, 2021
    Applicant: VDM Metals International GmbH
    Inventors: Bodo GEHRMANN, Burkhard ERPENBECK
  • Patent number: 11162160
    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: Grant
    Filed: March 14, 2019
    Date of Patent: November 2, 2021
    Assignee: VDM Metals International GmbH
    Inventors: Heike Hattendorf, Christina Schmidt
  • 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
  • Patent number: 10988829
    Abstract: The invention relates to methods for the manufacture of nickel alloys having optimized strip weldability (TIG without filler) from an alloy of the following composition (in wt %): C max. 0.05%, Co max. 2.5%, Ni the rest, especially >35-75.5%, Mn max. 1.0%, Si max. 0.5%, Mo >2 to 23%, P max. 0.2%, S max. 0.05%, N up to 0.2%, Cu ?1.0%, Fe >0 to ?7.0%, Ti >0 to <2.5%, Al >0 to 0.5%, Cr >14 to <25%, V max. 0.5%, W up to 3.5%, Mg up to 0.2%, Ca up to 0.02%, in that the alloy is smelted openly and cast as ingots, the ingots are subjected if necessary to at least one heat treatment, the ingots are then remelted at least one time by electroslag refining, the remelted ingot obtained in this way is subjected if necessary to at least one heat treatment, the ingot is subjected to at least one cold and/or hot deformation cycle, until strip material of predeterminable material thickness exists, the strip material is subdivided into strip sections of defined lengths/widths.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: April 27, 2021
    Assignee: VDM Metals International GmbH
    Inventors: Martin Wolf, Stefan Gilges, Jens Koepernik
  • 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
  • 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: 20200325567
    Abstract: A method produces semi-finished products from a nickel-based alloy having the composition (in wt. %): Ni>50 -<55%, Cr>17-<21%, Nb>4.8-<5.2%, Mo>2.8-<3.3%, Ti>0.8-<1.15%, Al>0.4-<0.6%, C maximum 0.045%, Co maximum 1.0%, Mn maximum 0.35%, Si maximum 0.35%, S maximum 0.01%, Cu maximum 0.3%, the remainder iron and unavoidable impurities. B 0.0001-0.01%, P 0.0001-0.02% are added. In the method: the alloy is melted, or remelted, to produce preliminary products that then undergo a hot-forming process and subsequently undergo a multi-stage annealing and aging treatment, a solution heat treatment being carried out between 1000 and 1100° C. for 1-3 hours, then cooled in air, water or oil, and made to undergo a precipitation hardening process between 650° C.-<770° C. for 5-9 hours, then cooled to room temperature, the intermediate products undergoing, if necessary, at least one further heating process.
    Type: Application
    Filed: December 7, 2018
    Publication date: October 15, 2020
    Applicant: VDM Metals International GmbH
    Inventors: Jutta KLOEWER, Ali AGHAJANI, Julia KRAEMER geb. ROSENBERG
  • Publication number: 20200290161
    Abstract: A welding filler material includes (in wt.-%): C 0.01-0.05%; N 0.05-0.10%; Cr 20.0-23.0%; Mn 0.25-0.50%; Si 0.04-0.10%; Mo 8.0-10.5%; Ti 0.75-1.0%; Nb 3.0-5.0%; Fe max. 1.5%; Al 0.03-0.50%; W 4.0-5.0%.; Ta max. 0.5 %; Co max. 1.0%; Zr 0.10-0.70% Ni remainder; and impurities resulting from the smelting process.
    Type: Application
    Filed: November 15, 2018
    Publication date: September 17, 2020
    Applicant: VDM Metals International GmbH
    Inventor: Martin WOLF
  • 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
  • Publication number: 20200048741
    Abstract: The invention relates to the use of an alloy having the composition (in mass %) of: Cr 20.0 to 23.0%, Mo 18.5 to 21.05%, Fe?1.5%, Mn?0.5%, Si?0.1%, Co?0.3%, W?0.3%, Cu?0.5%, Al?0.4%, C?0.01%, P?0.015%, S?0.01%, N 0.02 to 0.15%, if necessary V?0.3%, Nb?0.2%, Ti?0.02%, the rest Ni and further smelting-related impurities as cladding material in the field of thermal reprocessing systems and substitute-material combustion systems.
    Type: Application
    Filed: December 12, 2017
    Publication date: February 13, 2020
    Applicant: VDM Metals International GmbH
    Inventors: Martin WOLF, Rainer BEHRENS
  • Publication number: 20190284662
    Abstract: The invention relates to methods for the manufacture of nickel alloys having optimized strip weldability (TIG without filler) from an alloy of the following composition (in wt%): C max. 0.05%, Co max. 2.5%, Ni the rest, especially >35 - 75.5%, Mn max. 1.0%, Si max. 0.5%, Mo >2 to 23%, P max. 0.2%, S max. 0.05%, N up to 0.2%, Cu 1.0%, Fe >0 to <7.0%, Ti >0 to <2.5%, Al >0 to 0.5%, Cr >14 to <25%, V max. 0.5%, W up to 3.5%, Mg up to 0.2%, Ca up to 0.02%, in that the alloy is smelted openly and cast as ingots, the ingots are subjected if necessary to at least one heat treatment, the ingots are then remelted at least one time by electroslag refining, the remelted ingot obtained in this way is subjected if necessary to at least one heat treatment, the ingot is subjected to at least one cold and/or hot deformation cycle, until strip material of predeterminable material thickness exists, the strip material is subdivided into strip sections of defined lengths/widths.
    Type: Application
    Filed: December 8, 2017
    Publication date: September 19, 2019
    Applicant: VDM Metals International GmbH
    Inventors: Martin WOLF, Stefan GILGES, Jens KOEPERNIK
  • Publication number: 20190040501
    Abstract: A Ni—Co alloy includes 30 to 65 wt % Ni, >0 to max. 10 wt % Fe, >12 to <35 wt % Co, 13 to 23 wt % Cr, 1 to 6 wt % Mo, 4 to 6 wt % Nb+Ta, >0 to <3 wt % Al, >0 to <2 wt % Ti, >0 to max. 0.1 wt % C, >0 to max. 0.03 wt % P, >0 to max. 0.01 wt % Mg, >0 to max. 0.02 wt % B, >0 to max. 0.1 wt % Zr, which fulfils the following requirements and criteria: a) 900° C.<?? solvus temperature<1030° C. with 3 at %<Al+Ti (at %)<5.6 at % and 11.5 at %<Co<35 at %; b) stable microstructure after 500 h of ageing annealing at 800° C. with a ratio Al/Ti>5 (on the basis of the contents in at %).
    Type: Application
    Filed: October 1, 2018
    Publication date: February 7, 2019
    Applicant: VDM Metals International GmbH
    Inventors: Budo GEHRMANN, Jutta KLOEWER, Tatiana FEDOROVA, Joachim ROESLER