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).
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Publication number: 20230160040Abstract: A nickel-chromium-aluminum alloy includes (in mass %) 12 to 30% chromium, 1.8 to 4.0% aluminum, 0.1 to 7.0% iron, 0.001 to 0.50% silicon, 0.001 to 2.0% manganese, 0.00 to 1.00% titanium, 0.00 to 1.10% niobium, 0.00 to 0.5% copper, 0.00 to 5.00% cobalt, in each case 0.0002 to 0.05% magnesium and/or calcium, 0.001 to 0.12% carbon, 0.001 to 0.050% nitrogen, 0.001 to 0.030% phosphorus, 0.0001 to 0.020% oxygen, max. 0.010% sulfur, max. 2.0% molybdenum, max. 2.0% tungsten, and a remainder of nickel with a minimum content of ?50% and the usual process-related impurities for use in solar power towers, using chloride and/or carbonate salt melts as a heat transfer medium, wherein in order to ensure a good processability, the following condition must be met: Fv?0.9 with Fv=4.88050?0.095546*Fe?0.0178784*Cr?0.992452*AI?1.51498*Ti?0.506893*Nb+0.0426004*AI*Fe, where Fe, Cr, AI, Ti, and Nb are the concentration of the respective elements in mass %.Type: ApplicationFiled: December 4, 2020Publication date: May 25, 2023Applicant: VDM Metals International GmbHInventors: Heike HATTENDORF, Benedikt NOWAK
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Publication number: 20230020446Abstract: A nickel-chromium-aluminum alloy includes (in mass %) 12 to 30% chromium, 1.8 to 4.0% aluminum, 0.1 to 7.0% iron, 0.001 to 0.50% silicon, 0.001 to 2.0% manganese, 0.00 to 1.00% titanium, 0.00 to 1.10% niobium, 0.00 to 0.5% copper, 0.00 to 5.00% cobalt, in each case 0.0002 to 0.05% magnesium and/or calcium, 0.001 to 0.12% carbon, 0.001 to 0.050% nitrogen, 0.001 to 0.030% phosphorus, 0.0001 to 0.020% oxygen, max. 0.010% sulfur, max. 2.0% molybdenum, max. 2.0% tungsten, and a remainder of nickel with a minimum content of 50% and the usual process-related impurities for use in solar power towers, using chloride and/or carbonate salt melts as a heat transfer medium, wherein in order to ensure a good processability, the following condition must be met: FV 0.9 with FV=4.88050?0.095546*Fe?0.0178784*Cr?0.992452*Al?1.51498*Ti?0.506893*Nb+0.0426004*Al*Fe, where Fe, Cr, Al, Ti, and Nb are the concentration of the respective elements in mass %.Type: ApplicationFiled: December 4, 2020Publication date: January 19, 2023Applicant: VDM Metals International GmbHInventors: Heike HATTENDORF, Benedikt NOWAK
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Publication number: 20230002861Abstract: A nickel-chromium-iron-aluminum alloy contains (in wt. %)>17 to 33% chromium, 1.8 to <4.0% aluminum, 0.10 to 15.0% iron, 0.001 to 0.50% silicon, 0.001 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 with nickel ?50% and the usual process-related impurities, for use in solar power tower plants using nitrate salt melts as the heat transfer medium, wherein the following relations must be satisfied: Fp?39.9 (2a) with Fp=Cr+0.272*Fe+2.36*Al+2.22*Si+2.48*Ti+0.374*Mo+0.538*W?11.8*C (3a), wherein Cr, Fe, Al, Si, Ti, Mo, W and C is the concentration of the respective elements in % by weight.Type: ApplicationFiled: December 4, 2020Publication date: January 5, 2023Applicant: VDM Metals International GmbHInventors: Heike HATTENDORF, Benedikt NOWAK
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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: 11193186Abstract: 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: GrantFiled: July 24, 2018Date of Patent: December 7, 2021Assignee: VDM Metals International GmbHInventors: Juergen Kiese, Nicole De Boer, Heike Hattendorf
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Patent number: 11162160Abstract: 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: GrantFiled: March 14, 2019Date of Patent: November 2, 2021Assignee: VDM Metals International GmbHInventors: Heike Hattendorf, Christina Schmidt
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Patent number: 11098389Abstract: 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: GrantFiled: January 12, 2015Date of Patent: August 24, 2021Assignee: VDM Metals International GmbHInventors: Heike Hattendorf, Jutta Kloewer
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Publication number: 20210115536Abstract: 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: ApplicationFiled: March 14, 2019Publication date: April 22, 2021Applicant: VDM Metals International GmbHInventors: Heike HATTENDORF, Christina SCHMIDT
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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: 10923248Abstract: 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: GrantFiled: June 6, 2014Date of Patent: February 16, 2021Assignee: VDM Metals International GmbHInventors: Nicole De Boer, Stefan Gilges, Heike Hattendorf, Andreas Heckmann
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Patent number: 10870908Abstract: 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: GrantFiled: January 12, 2015Date of Patent: December 22, 2020Assignee: VDM Metals International GmbHInventor: Heike Hattendorf
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Publication number: 20200172997Abstract: 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: ApplicationFiled: July 24, 2018Publication date: June 4, 2020Applicant: VDM Metals International GmbHInventors: Juergen KIESE, Nicole DE BOER, Heike HATTENDORF
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Patent number: 10196721Abstract: 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: GrantFiled: June 6, 2012Date of Patent: February 5, 2019Assignee: VDM Metals International GmbHInventors: Heike Hattendorf, Bernd Kuhn, Thomas Eckardt, Tilmann Beck, Willem Quadakkers, Werner Theisen, Nilofar Nabiran
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Patent number: 9932656Abstract: 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: GrantFiled: January 28, 2014Date of Patent: April 3, 2018Assignee: VDM Metals International GmbHInventors: Heike Hattendorf, Frank Scheide, Larry Paul
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Nickel-chromium-aluminum alloy having good processability, creep resistance and corrosion resistance
Patent number: 9657373Abstract: 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: GrantFiled: May 15, 2013Date of Patent: May 23, 2017Assignee: VDM Metals International GmbHInventor: Heike Hattendorf -
Patent number: 9650698Abstract: 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: GrantFiled: May 15, 2013Date of Patent: May 16, 2017Assignee: VDM Metals International GmbHInventor: Heike Hattendorf
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Publication number: 20160319402Abstract: 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: ApplicationFiled: January 12, 2015Publication date: November 3, 2016Applicant: VDM Metals GmbHInventor: Heike HATTENDORF
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Publication number: 20160312341Abstract: 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: ApplicationFiled: January 12, 2015Publication date: October 27, 2016Applicant: VDM Metals GmbHInventors: Heike HATTENDORF, Jutta KLOEWER
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Patent number: 9476110Abstract: 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: GrantFiled: February 17, 2012Date of Patent: October 25, 2016Assignee: VDM Metals International GmbHInventors: Heike Hattendorf, Jutta Kloewer
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Publication number: 20160289807Abstract: 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: ApplicationFiled: January 12, 2015Publication date: October 6, 2016Applicant: VDM Metals GmbHInventor: Heike HATTENDORF