Patents by Inventor Christian Joachim Keidel
Christian Joachim Keidel 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: 10472707Abstract: An Al—Zn—Mg—Cu alloy with improved damage tolerance-strength combination properties. The present invention relates to an aluminum alloy product comprising or consisting essentially of, in weight %, about 6.5 to 9.5 zinc (Zn), about 1.2 to 2.2% magnesium (Mg), about 1.0 to 1.9% copper (Cu), preferable (0.9 Mg?0.6)?Cu?(0.9 Mg+0.05), about 0 to 0.5% zirconium (Zr), about 0 to 0.7% scandium (Sc), about 0 to 0.4% chromium (Cr), about 0 to 0.3% hafnium (Hf), about 0 to 0.4% titanium (Ti), about 0 to 0.8% manganese (Mn), the balance being aluminum (Al) and other incidental elements. The invention relates also to a method of manufacturing such as alloy.Type: GrantFiled: December 27, 2013Date of Patent: November 12, 2019Assignee: ALERIS ROLLED PRODUCTS GERMANY GMBHInventors: Rinze Benedictus, Christian Joachim Keidel, Alfred Ludwig Heinz, Nedia Telioui
-
Publication number: 20140224386Abstract: An Al—Zn—Mg—Cu alloy with improved damage tolerance-strength combination properties. The present invention relates to an aluminium alloy product comprising or consisting essentially of, in weight %, about 6.5 to 9.5 zinc (Zn), about 1.2 to 2.2% magnesium (Mg), about 1.0 to 1.9% copper (Cu), preferable (0.9 Mg?0.6)?Cu?(0.9 Mg+0.05), about 0 to 0.5% zirconium (Zr), about 0 to 0.7% scandium (Sc), about 0 to 0.4% chromium (Cr), about 0 to 0.3% hafnium (Hf), about 0 to 0.4% titanium (Ti), about 0 to 0.8% manganese (Mn), the balance being aluminium (Al) and other incidental elements. The invention relates also to a method of manufacturing such as alloy.Type: ApplicationFiled: December 27, 2013Publication date: August 14, 2014Applicant: ALERIS ALUMINUM KOBLENZ GMBHInventors: Rinze BENEDICTUS, Christian Joachim KEIDEL, Alfred Ludwig HEINZ, Nedia TELIOUI
-
Patent number: 8043445Abstract: The invention relates to an aluminium alloy wrought product with high strength and fracture toughness and high fatigue resistance and low fatigue crack growth rate, and having a composition for the alloy comprising, in weight %, about 0.3 to 1.0% magnesium (Mg), about 4.4 to 5.5% copper (Cu), about 0 to 0.20% iron (Fe), about 0 to 0.20% silicon (Si), about 0 to 0.40% zinc (Zn), and Mn in a range 0.15 to 0.8 as a dispersoids forming element in combination with one or more of dispersoids forming elements selected from the group consisting of: (Zr, Sc, Cr, Hf, Ag, Ti, V), in ranges of: about 0 to 0.5% zirconium (Zr), about 0 to 0.7% scandium (Sc), about 0 to 0.4% chromium (Cr), about 0 to 0.3% hafnium (Hf), about 0 to 0.4% titanium (Ti), about 0 to 1.0% silver (Ag), the balance being aluminium (Al) and other incidental elements, and whereby there is a limitation of the Cu—Mg content such that ?1.1[Mg]+5.38?[Cu]?5.5. The invention further relates to a method of manufacturing such a product.Type: GrantFiled: May 28, 2004Date of Patent: October 25, 2011Assignee: Aleris Aluminum Koblenz GmbHInventors: Rinze Benedictus, Christian Joachim Keidel, Alfred Ludwig Heinz, Hinrich Johannes Wilhelm Hargarter
-
Patent number: 7883591Abstract: Disclosed is a Al—Zn alloy wrought product, and a method of manufacturing such a product, with an improved combination of high toughness and high strength by maintaining good corrosion resistance, the alloy including (in weight percent): Zn 6.0-11.0, Cu 1.4-2.2, Mg 1.4-2.4, Zr 0.05-0.15, Ti <0.05, Hf and/or V <0.25, and optionally Sc and/or Ce 0.05-0.25, and Mn 0.05-0.12, other elements each less than 0.05 and less than 0.50 in total, balance aluminium, wherein such alloy has an essentially fully unrecrystallized microstructure at least at the position T/10 of the finished product.Type: GrantFiled: September 30, 2005Date of Patent: February 8, 2011Assignee: Aleris Aluminum Koblenz GmbHInventors: Rinze Benedictus, Christian Joachim Keidel, Alfred Ludwig Heinz
-
Patent number: 7815758Abstract: Disclosed is a high damage tolerant Al—Cu alloy of the AA2000 series having a high toughness and an improved fatigue crack growth resistance, including the following composition (in weight percent) Cu 3.8-4.7, Mg 1.0-1.6, Zr 0.06-0.18, Cr<0.15, Mn>0-0.50, Fe?0.15, Si?0.15, and Mn-containing dispersoids, the balance essentially aluminum and incidental elements and impurities, wherein the Mn-containing dispersoids are at least partially replaced by Zr-containing dispersoids. There is also disclosed a method for producing a rolled high damage tolerant Al—Cu alloy product having a high toughness and an improved fatigue crack growth resistance, and applications of that product as a structural member of an aircraft.Type: GrantFiled: November 30, 2007Date of Patent: October 19, 2010Assignee: Aleris Aluminum Koblenz GmbHInventors: Rinze Benedictus, Christian Joachim Keidel, Alfred Ludwig Heinz, Alfred Johann Peter Haszler
-
Patent number: 7666267Abstract: An Al—Zn—Mg—Cu alloy with improved damage tolerance-strength combination properties. The present invention relates to an aluminium alloy product comprising or consisting essentially of, in weight %, about 6.5 to 9.5 zinc (Zn), about 1.2 to 2.2% magnesium (Mg), about 1.0 to 1.9% copper (Cu), preferable (0.9Mg?0.6)?Cu?(0.9Mg+0.05), about 0 to 0.5% zirconium (Zr), about 0 to 0.7% scandium (Sc), about 0 to 0.4% chromium (Cr), about 0 to 0.3% hafnium (Hf), about 0 to 0.4% titanium (Ti), about 0 to 0.8% manganese (Mn), the balance being aluminium (Al) and other incidental elements. The invention relates also to a method of manufacturing such as alloy.Type: GrantFiled: April 9, 2004Date of Patent: February 23, 2010Assignee: Aleris Aluminum Koblenz GmbHInventors: Rinze Benedictus, Christian Joachim Keidel, Alfred Ludwig Heinz, Nedia Telioui
-
Publication number: 20090320969Abstract: The present invention relates to a high strength Al—Zn alloy product with an improved combination of corrosion resistance and toughness, the alloy including essentially (in weight percent): Zn: 6.0-9.5, Cu: 1.3-2.4, Mg: 1.5-2.6, Mn and Zr<0.25 but preferably in a range between 0.05 and 0.15 for higher Zn contents, other elements each less than 0.05 and less than 0.25 in total, balance aluminium, wherein (in weight percent): 0.1[Cu]+1.3<[Mg]<0.2[Cu]+2.15. The invention also relates to a method to produce these alloy products, and to some preferred applications thereof such as upper wing applications in aerospace.Type: ApplicationFiled: August 25, 2009Publication date: December 31, 2009Applicant: ALERIS ALUMINUM KOBLENZ GMBHInventors: Rinze BENEDICTUS, Christian Joachim KEIDEL, Alfred Ludwig HEINZ
-
Patent number: 7610669Abstract: A method for producing an integrated monolithic aluminum structure, including the steps of: (a) providing an aluminum alloy plate from an aluminum alloy with a predetermined thickness (y), (b) shaping or forming the alloy plate to obtain a predetermined shaped structure, (c) heat-treating the shaped structure, (d) machining, e.g. high velocity machining, the shaped structure to obtain an integrated monolithic aluminum structure.Type: GrantFiled: February 27, 2004Date of Patent: November 3, 2009Assignee: Aleris Aluminum Koblenz GmbHInventors: Christian Joachim Keidel, Alfred Ludwig Heinz
-
Publication number: 20090269608Abstract: An Al—Zn—Mg—Cu alloy with improved damage tolerance-strength combination properties. The present invention relates to an aluminium alloy product comprising or consisting essentially of, in weight %, about 6.5 to 9.5 zinc (Zn), about 1.2 to 2.2% magnesium (Mg), about 1.0 to 1.9% copper (Cu), preferable (0.9Mg?0.6)?Cu?(0.9Mg+0.05), about 0 to 0.5% zirconium (Zr), about 0 to 0.7% scandium (Sc), about 0 to 0.4% chromium (Cr), about 0 to 0.3% hafnium (Hf), about 0 to 0.4% titanium (Ti), about 0 to 0.8% manganese (Mn), the balance being aluminium (Al) and other incidental elements. The invention relates also to a method of manufacturing such as alloy.Type: ApplicationFiled: July 6, 2009Publication date: October 29, 2009Applicant: ALERIS ALUMINUM KOBLENZ GMBHInventors: Rinze Benedictus, Christian Joachim Keidel, Alfred Ludwig Heinz, Nedia Telioui
-
Patent number: 7604704Abstract: The present invention concerns a balanced Al—Cu—Mg—Si alloy having a high toughness, good strength levels and an improved fatigue crack growth resistance, comprising essentially the following composition (in weight percent): Cu: 3.6-4.9, Mg: 1.0-1.8, Mn:?0.50, preferably <0.30, Si: 0.10-0.40, Zr:?0.15, Cr:?0.15, Fe:?0.10, the balance essentially aluminum and incidental elements and impurities. There is also disclosed a method for producing the balanced Al—Cu—Mg—Si alloy product having a high toughness and an improved fatigue crack growth resistance, and applications of that product as a structural member of an aircraft.Type: GrantFiled: August 18, 2003Date of Patent: October 20, 2009Assignee: Aleris Aluminum Koblenz GmbHInventors: Rinze Benedictus, Christian Joachim Keidel, Alfred Ludwig Heinz, Alfred Johann Peter Haszler
-
Patent number: 7494552Abstract: Disclosed is an Al—Cu alloy of the AA2000-series alloys with high toughness and an improved strength, including the following composition (in weight percent) Cu 4.5-5.5, Mg 0.5-1.6, Mn?0.80, Zr?0.18, Cr?0.18, Si?0.15, Fe?0.15, the balance essentially aluminum and incidental elements and impurities, and wherein the amount (in weight %) of magnesium is either: (a) in a range of 1.0 to 1.6%, or alternatively (b) in a range of 0.50 to 1.2% when the amount of dispersoid forming elements such as Cr, Zr or Mn is controlled and (in weight %) in a range of 0.10 to 0.70%.Type: GrantFiled: August 13, 2003Date of Patent: February 24, 2009Assignee: Aleris Aluminum Koblenz GmbHInventors: Rinze Benedictus, Christian Joachim Keidel, Alfred Ludwig Heinz, Alfred Johann Peter Haszler, Hinrich Johannes Wilhelm Hargarter
-
Publication number: 20080121317Abstract: Disclosed is a high damage tolerant Al—Cu alloy of the AA2000 series having a high toughness and an improved fatigue crack growth resistance, including the following composition (in weight percent) Cu 3.8-4.7, Mg 1.0-1.6, Zr 0.06-0.18, Cr<0.15, Mn>0-0.50 , Fe?0.15, Si?0.15, and Mn-containing dispersoids, the balance essentially aluminum and incidental elements and impurities, wherein the Mn-containing dispersoids are at least partially replaced by Zr-containing dispersoids. There is also disclosed a method for producing a rolled high damage tolerant Al—Cu alloy product having a high toughness and an improved fatigue crack growth resistance, and applications of that product as a structural member of an aircraft.Type: ApplicationFiled: November 30, 2007Publication date: May 29, 2008Applicant: Aleris Aluminum Koblenz GmbHInventors: Rinze BENEDICTUS, Christian Joachim Keidel, Alfred Ludwig Heinz, Alfred Johann Peter Haszler
-
Patent number: 7323068Abstract: Disclosed is a high damage tolerant Al—Cu alloy of the AA2000 series having a high toughness and an improved fatigue crack growth resistance, including the following composition (in weight percent) Cu 3.8-4.7, Mg 1.0-1.6, Zr 0.06-0.18, Cr<0.15, Mn>0-0.50 , Fe?0.15, Si?0.15, and Mn-containing dispersoids, the balance essentially aluminum and incidental elements and impurities, wherein the Mn-containing dispersoids are at least partially replaced by Zr-containing dispersoids. There is also disclosed a method for producing a rolled high damage tolerant Al—Cu alloy product having a high toughness and an improved fatigue crack growth resistance, and applications of that product as a structural member of an aircraft.Type: GrantFiled: August 18, 2003Date of Patent: January 29, 2008Assignee: Aleris Aluminum Koblenz GmbHInventors: Rinze Benedictus, Christian Joachim Keidel, Alfred Ludwig Heinz, Alfred Johann Peter Haszler
-
Patent number: 6994760Abstract: The present invention relates to a method for producing high strength balanced Al—Mg—Si alloy with an improved fatigue crack growth resistance and a low amount of intermetallics, comprising the steps of a) casting an ingot with the following composition (in weight percent) Si: 0.75–1.3, Cu: 0.6–1.1, Mn: 0.2–0.8, Mg: 0.45–0.95, Fe: 0.01–0.3, Zr: <0.25, Cr: <0.25, Zn: <0.35, Ti: <0.25, impurities each less than 0.05 and less than 0.20 in total, balance aluminum, b) optional homogenization of the cast ingot, c) pre-heating the ingot after casting for 4 to 30 hours with temperatures above 520° C., d) hot working the ingot and optionally cold working, e) solution heat treating, and f) quenching the worked product. The pre-heating is preferably performed for 6 to 18 hours with temperatures between 530° C. and 560° C. The alloy has a fatigue crack growth rate at ?K=20 MPa?m of below 9.0E?04 and at ?K=40 MPa?m of below 9.Type: GrantFiled: June 2, 2003Date of Patent: February 7, 2006Assignee: Corus Aluminium Walzprodukte GmbHInventors: Rinze Benedictus, Christian Joachim Keidel, Guido Weber, Alfred Johann Peter Haszler
-
Patent number: 6939416Abstract: The invention relates to a weldable, high-strength aluminium alloy wrought product, which may be in the form of a rolled, extruded or forged form, containing the elements, in weight percent, Si 0.8 to 1.3, Cu 0.2 to 1.0, Mn 0.5 to 1.1, Mg 0.45 to 1.0, Ce 0.01 to 0.25, and preferably added in the form of a Misch Metal, Fe 0.01 to 0.3, Zr<0.25, Cr<0.25, Zn<1.4, Ti<0.25, V<0.25, others each <0.05 and total <0.15, balance aluminium. The invention relates also to a method of manufacturing such an aluminium alloy product.Type: GrantFiled: July 10, 2002Date of Patent: September 6, 2005Assignee: Corus Aluminium Walzprodukte GmbHInventors: Rinze Benedictus, Guido Weber, Alfred Johann Peter Haszler, Christian Joachim Keidel
-
Publication number: 20040211498Abstract: The present invention relates to a method for producing an integrated monolithic aluminum structure, including the steps of: (a) providing an aluminum alloy plate from an aluminum alloy with a predetermined thickness (y), (b) shaping or forming the alloy plate to obtain a predetermined shaped structure, (c) heat-treating the shaped structure, (d) machining, e.g. high velocity machining, the shaped structure to obtain an integrated monolithic aluminum structure.Type: ApplicationFiled: February 27, 2004Publication date: October 28, 2004Inventors: Christian Joachim Keidel, Alfred Ludwig Heinz
-
Publication number: 20040112480Abstract: The present invention concerns a balanced Al—Cu—Mg—Si alloy having a high toughness, good strength levels and an improved fatigue crack growth resistance, comprising essentially the following composition (in weight percent) : Cu: 3.6-4.9, Mg: 1.0-1.8, Mn:≦0.50, preferably <0.30, Si: 0.10-0.40, Zr:≦0.15, Cr:≦0.15, Fe:≦0.10, the balance essentially aluminum and incidental elements and impurities. There is also disclosed a method for producing the balanced Al—Cu—Mg—Si alloy product having a high toughness and an improved fatigue crack growth resistance, and applications of that product as a structural member of an aircraft.Type: ApplicationFiled: August 18, 2003Publication date: June 17, 2004Inventors: Rinze Benedictus, Christian Joachim Keidel, Alfred Ludwig Heinz, Alfred Johann Peter Haszler
-
Publication number: 20040099353Abstract: Disclosed is a high damage tolerant Al—Cu alloy of the AA2000 series having a high toughness and an improved fatigue crack growth resistance, including the following composition (in weight percent) Cu 3.8-4.7, Mg 1.0-1.6, Zr 0.06-0.18, Cr<0.15, Mn>0-0.50 , Fe≦0.15, Si≦0.15, and Mn-containing dispersoids, the balance essentially aluminum and incidental elements and impurities, wherein the Mn-containing dispersoids are at least partially replaced by Zr-containing dispersoids. There is also disclosed a method for producing a rolled high damage tolerant Al—Cu alloy product having a high toughness and an improved fatigue crack growth resistance, and applications of that product as a structural member of an aircraft.Type: ApplicationFiled: August 18, 2003Publication date: May 27, 2004Inventors: Rinze Benedictus, Christian Joachim Keidel, Alfred Ludwig Heinz, Alfred Johann Peter Haszler
-
Publication number: 20040062946Abstract: The present invention relates to a method for producing high strength balanced Al—Mg—Si alloy with an improved fatigue crack growth resistance and a low amount of intermetallics, comprising the steps ofType: ApplicationFiled: June 2, 2003Publication date: April 1, 2004Inventors: Rinze Benedictus, Christian Joachim Keidel, Guido Weber, Alfred Johann Peter Haszler
-
Publication number: 20040060618Abstract: Disclosed is an Al—Cu alloy of the AA2000-series alloys with high toughness and an improved strength, including the following composition (in weight percent) Cu 4.5-5.5, Mg 0.5-1.6, Mn≧0.80, Zr≧0.18, Cr≧0.18, Si≧0.15, Fe≧0.15, the balance essentially aluminum and incidental elements and impurities, and wherein the amount (in weight %) of magnesium is either: (a) in a range of 1.0 to 1.6%, or alternatively (b) in a range of 0.50 to 1.2% when the amount of dispersoid forming elements such as Cr, Zr or Mn is controlled and (in weight %) in a range of 0.10 to 0.70%.Type: ApplicationFiled: August 13, 2003Publication date: April 1, 2004Inventors: Rinze Benedictus, Christian Joachim Keidel, Alfred Ludwig Heinz, Alfred Johann Peter Haszler, Hinrich Johannes Wilhelm Hargarter