Patents Assigned to QuesTek Innovations LLC
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Publication number: 20130174944Abstract: Provided herein are titanium alloys that can achieve a combination of high strength and high toughness or elongation, and a method to produce the alloys. By tolerating iron, oxygen, and other incidental elements and impurities, the alloys enable the use of lower quality scrap as raw materials. The alloys are castable and can form ?-phase laths in a basketweave morphology by a commercially feasible heat treatment that does not require hot-working or rapid cooling rates. The alloys comprise, by weight, about 3.0% to about 6.0% aluminum, 0% to about 1.5% tin, about 2.0% to about 4.0% vanadium, about 0.5% to about 4.5% molybdenum, about 1.0% to about 2.5% chromium, about 0.20% to about 0.55% iron, 0% to about 0.35% oxygen, 0% to about 0.007% boron, and 0% to about 0.60% other incidental elements and impurities, the balance of weight percent comprising titanium.Type: ApplicationFiled: February 28, 2013Publication date: July 11, 2013Applicant: QuesTek Innovations LLCInventor: QuesTek Innovations LLC
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Publication number: 20130084208Abstract: In an aspect the disclosure relates to an alloy comprising, by weight, about 0.15% to about 1.00% zinc, 0% to about 0.20% gallium, and the balance aluminum and incidental elements and impurities, wherein the alloy has a corrosion potential from about ?0.85 V to about ?0.73 V relative to a saturated calomel electrode.Type: ApplicationFiled: September 25, 2012Publication date: April 4, 2013Applicant: QUESTEK INNOVATIONS LLCInventor: Quest Tek Innovations LLC
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Publication number: 20110303387Abstract: A lead-free copper alloy includes, in combination by weight, about 10.0% to about 20.0% bismuth, about 0.05% to about 0.3% phosphorous, about 2.2% to about 10.0% tin, up to about 5.0% antimony, and up to about 0.02% boron, the balance essentially copper and incidental elements and impurities. The alloy contains no more than about 0.05 wt. % or 0.10 wt. % lead.Type: ApplicationFiled: March 2, 2010Publication date: December 15, 2011Applicant: QUESTEK INNOVATIONS LLC.Inventors: Abhijeet Misra, Jason Sebastian, James A. Wright
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Publication number: 20110268602Abstract: Provided herein are titanium alloys that can achieve a combination of high strength and high toughness or elongation, and a method to produce the alloys. By tolerating iron, oxygen, and other incidental elements and impurities, the alloys enable the use of lower quality scrap as raw materials. The alloys are castable and can form ?-phase laths in a basketweave morphology by a commercially feasible heat treatment that does not require hot-working or rapid cooling rates. The alloys comprise, by weight, about 3.0% to about 6.0% aluminum, 0% to about 1.5% tin, about 2.0% to about 4.0% vanadium, about 0.5% to about 4.5% molybdenum, about 1.0% to about 2.5% chromium, about 0.20% to about 0.55% iron, 0% to about 0.35% oxygen, 0% to about 0.007% boron, and 0% to about 0.60% other incidental elements and impurities, the balance of weight percent comprising titanium.Type: ApplicationFiled: April 29, 2011Publication date: November 3, 2011Applicant: QuesTek Innovations LLCInventors: James A. Wright, Jason Sebastian, Herng-Jeng Jou
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Patent number: 7967927Abstract: A nanocarbide precipitation strengthened ultrahigh-strength, corrosion resistant, structural steel possesses a combination of strength and corrosion resistance comprising in combination, by weight, about: 0.1 to 0.3% carbon (C), 8 to 17% cobalt (Co), 0 to 10% nickel (Ni), 6 to 12% chromium (Cr), less than 1% silicon (Si), less than 0.5% manganese (Mn), and less than 0.15% copper (Cu), with additives selected from the group comprising about: less than 3% molybdenum (Mo), less than 0.3% niobium (Nb), less than 0.8% vanadium (V), less than 0.2% tantalum (Ta), less than 3% tungsten (W), and combinations thereof, with additional additives selected from the group comprising about: less than 0.2% titanium (Ti), less than 0.2% lanthanum (La) or other rare earth elements, less than 0.15% zirconium (Zr), less than 0.005% boron (B), and combinations thereof, impurities of less than about: 0.02% sulfur (S), 0.012% phosphorus (P), 0.015% oxygen (O) and 0.Type: GrantFiled: January 9, 2007Date of Patent: June 28, 2011Assignee: QuesTek Innovations, LLCInventors: Charles J. Kuehmann, Gregory B. Olson, Herng-Jeng Jou
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Publication number: 20110094637Abstract: A martensitic stainless steel alloy is strengthened by copper-nucleated nitride precipitates. The alloy includes, in combination by weight percent, about 10.0 to about 12.5 Cr, about 2.0 to about 7.5 Ni, up to about 17.0 Co, about 0.6 to about 1.5 Mo, about 0.5 to about 2.3 Cu, up to about 0.6 Mn, up to about 0.4 Si, about 0.05 to about 0.15 V, up to about 0.10 N, up to about 0.035 C, up to about 0.01 W, and the balance Fe and incidental elements and impurities. The nitride precipitates may be enriched by one or more transition metals.Type: ApplicationFiled: April 13, 2009Publication date: April 28, 2011Applicant: QUESTEK INNOVATIONS LLCInventors: James A. Wright, Gregory B. Olson, Weija Tang
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Publication number: 20110044843Abstract: An aluminum casting alloy resistant to hot tearing includes, in wt %, about 4.0 to about 6.9 Zn, about 2.0 to about 3.5 Mg, about 0.6 to about 1.2 Cu, about 0.38 to about 0.57 Sc, about 0.18 to about 0.28 Zr, and the balance Al and impurities, substantially excluding Fe, Mn, and Si, said alloy characterized by a freezing range of less than about 150° C., solidus temperature above about 490° C., and eutectic phase fraction above about 5% at the late stages of solidification. The alloy is processed to form a dispersion of L12 particles inoculating fcc grains with a grain diameter of about 40 to about 60 ?m, and ??-phase precipitates enabling an ambient yield strength from about 410 MPa to about 540 MPa.Type: ApplicationFiled: January 16, 2009Publication date: February 24, 2011Applicant: QUESTEK INNOVATIONS LLCInventors: Abhijeet Misra, Charles Kuehmann, Herng-jeng Jou
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Patent number: 7879159Abstract: A precipitation-hardened stainless maraging steel which exhibits a combination of strength, toughness, and corrosion resistance comprises by weight about: 8 to 15% chromium (Cr), 2 to 15% cobalt (Co), 7 to 14% nickel (Ni), and up to about 0.7% aluminum (Al), less than about 0.4% copper (Cu), 0.5 to 2.6% molybdenum (Mo), 0.4 to less than about 0.75% titanium (Ti), up to about 0.5% tungsten (W), and up to about 120 wppm carbon (C), the balance essentially iron (Fe) and incidental elements and impurities, characterized in that the alloy has predominantly lath martensite microstructure essentially without topologically close packed intermetallic phases and strengthened primarily by a dispersion of intermetallic particles primarily of the eta-Ni3Ti phase and wherein the titanium and carbon (Ti) and (C) levels are controlled such that C can be dissolved during a homogenization step and subsequently precipitated during forging to provide a grain-pinnning dispersion.Type: GrantFiled: January 25, 2006Date of Patent: February 1, 2011Assignee: QuesTek Innovations, LLCInventors: James Wright, Jin-Won Jung
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Publication number: 20100243112Abstract: A beryllium-free high-strength copper alloy includes, about 10-30 vol % of L12-(Ni,Cu)3(Al,Sn), and substantially excludes cellular discontinuous precipitation around grain boundaries. The alloy may include at least one component selected from the group consisting of: Ag, Cr, Mn, Nb, Ti, and V, and the balance Cu.Type: ApplicationFiled: March 31, 2009Publication date: September 30, 2010Applicant: QuesTek Innovations LLCInventors: James A. Wright, Abhijeet Misra
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Publication number: 20100230015Abstract: A non-stainless steel alloy includes, in combination by weight, about 0.20% to about 0.33% carbon, about 4.0% to about 8.0% cobalt, about 7.0 to about 11.0% nickel, about 0.8% to about 3.0% chromium, about 0.5% to about 2.5% molybdenum, about 0.5% to about 5.9% tungsten, about 0.05% to about 0.20% vanadium, and up to about 0.02% titanium, the balance essentially iron and incidental elements and impurities.Type: ApplicationFiled: February 20, 2009Publication date: September 16, 2010Applicant: QuesTek Innovations LLCInventor: Herng-Jeng Jou
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Publication number: 20090199930Abstract: A case hardened gear steel having enhanced core fracture toughness includes by weight percent about 16.3Co, 7.5Ni, 3.5Cr, 1.75Mo, 0.2W, 0.11C, 0.03Ti, and 0.02V and the balance Fe, characterized as a predominantly lath martensitic microstructure essentially free of topologically close-packed (TCP) phases and carburized to include fine M2C carbides to provide a case hardness of at least about 62 HRC and a core toughness of at least about 50 ksi?in.Type: ApplicationFiled: August 20, 2008Publication date: August 13, 2009Applicant: QuesTek Innovations LLCInventors: James A. Wright, Jason Sebastian
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Publication number: 20080314480Abstract: A precipitation-hardened stainless maraging steel which exhibits a combination of strength, toughness, and corrosion resistance comprises by weight about: 8 to 15% chromium (Cr), 2 to 15% cobalt (Co), 7 to 14% nickel (Ni), and up to about 0.7% aluminum (Al), less than about 0.4% copper (Cu), 0.5% to 2.5% molybdenum (Mo), 0.4 to 0.75% titanium (Ti), up to about 0.5% tungsten (W), and up to about 120 wppm carbon (C), the balance essentially iron (Fe) and incidental elements and impurities, characterized in that the alloy has a predominantly lath martensite microstructure essentially without topologically close packed intermetallic phases and strengthened primarily by a dispersion of intermetallic particles primarily of the eta-Ni3Ti phase and wherein the titanium and carbon (Ti) and (C) levels are controlled such that C can be dissolved during a homogenization step and subsequently precipitated during forging to provide a grain-pinning dispersion.Type: ApplicationFiled: January 25, 2006Publication date: December 25, 2008Applicant: Questek Innovations LLCInventors: James Wright, Jin-Won Jung
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Patent number: 7316753Abstract: High-strength, low-hysteresis TiNi-based shape-memory alloys (SMAS) employing fully coherent low-misfit nanoscale precipitates, wherein the precipitate phase is based on an optimized composition for high parent-phase strength and martensite phase stability, and compensating the stored elastic energy through the addition of martensite stabilizers. The alloys, with a yield strength in excess of 1200 MPa, are useful for applications such as self-expanding stents, automotive actuators, and other applications wherein SMAs with high output force and long cyclic life are desired.Type: GrantFiled: March 25, 2004Date of Patent: January 8, 2008Assignee: QuesTek Innovations LLCInventors: Jin-Won Jung, Gregory B. Olson
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Publication number: 20080000556Abstract: High-strength, low-hysteresis TiNi-based shape-memory alloys (SMAs) employing fully coherent low-misfit nanoscale precipitates, wherein the precipitate phase is based on an optimized composition for high parent-phase strength and martensite phase stability, and compensating the stored elastic energy through the addition of martensite stabilizers. The alloys, with a yield strength in excess of 1200 MPa, are useful for applications such as self-expanding stents, automotive actuators, and other applications wherein SMAs with high output force and long cyclic life are desired.Type: ApplicationFiled: July 5, 2007Publication date: January 3, 2008Applicant: Questek Innovations LLCInventors: Jin-Won Jung, Gregory Olson
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Patent number: 7160399Abstract: A nanocarbide precipitation strengthened ultrahigh-strength, corrosion resistant, structural steel possesses a combination of strength and corrosion resistance comprising in combination, by weight, about: 0.1 to 0.3% carbon (C), 8 to 17% cobalt (Co), 0 to 10% nickel (Ni), 6 to 12% chromium (Cr), less than 1% silicon (Si), less than 0.5% manganese (Mn), and less than 0.15% copper (Cu), with additives selected from the group comprising about: less than 3% molybdenum (Mo), less than 0.3% niobium (Nb), less than 0.8% vanadium (V), less than 0.2% tantalum (Ta), less than 3% tungsten (W), and combinations thereof, with additional additives selected from the group comprising about: less than 0.2% titanium (Ti), less than 0.2% lanthanum (La) or other rare earth elements, less than 0.15% zirconium (Zr), less than 0.005% boron (B), and combinations thereof, impurities of less than about: 0.02% sulfur (S), 0.012% phosphorus (P), 0.015% oxygen (O) and 0.Type: GrantFiled: February 6, 2003Date of Patent: January 9, 2007Assignee: QuesTek Innovations LLCInventors: Charles J. Kuehmann, Gregory B. Olson, Herng-Jeng Jou
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Publication number: 20040187980Abstract: High-strength, low-hysteresis TiNi-based shape-memory alloys (SMAS) employing fully coherent low-misfit nanoscale precipitates, wherein the precipitate phase is based on an optimized composition for high parent-phase strength and martensite phase stability, and compensating the stored elastic energy through the addition of martensite stabilizers. The alloys, with a yield strength in excess of 1200 MPa, are useful for applications such as self-expanding stents, automotive actuators, and other applications wherein SMAs with high output force and long cyclic life are desired.Type: ApplicationFiled: March 25, 2004Publication date: September 30, 2004Applicant: QuesTek Innovations LLCInventors: Jin-Won Jung, Gregory B. Olson
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Publication number: 20040055671Abstract: Aluminum alloys having improved strength characteristics at elevated temperatures (300° C.) are manufactured by combining selected transition metals (Ni, Co, Ti, Fe, Y, Sc) and selected rare earth materials (Er, Tm, Tb, Lu) in amounts of about 2 to 12% and 2 to 15% atomic percent respectively in an amorphous, glassy state and subsequently devitrifying the amorphous material to form a crystalline mix of fcc and L12 phase material. Devitrification from the amorphous state may be effected by various means including thermal and thermo mechanical processes.Type: ApplicationFiled: April 24, 2003Publication date: March 25, 2004Applicant: QuesTek Innovations LLCInventors: Gregory B. Olson, Weijia Tang, Caian Qiu, Herng-Jeng Jou
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Publication number: 20030226625Abstract: A nanocarbide precipitation strengthened ultrahigh-strength, corrosion resistant, structural steel possesses a combination of strength and corrosion resistance comprising in combination, by weight, about: 0.1 to 0.3% carbon (C), 8 to 17% cobalt (Co), 0 to 10% nickel (Ni), 6 to 12% chromium (Cr), less than 1% silicon (Si), less than 0.5% manganese (Mn), and less than 0.15% copper (Cu), with additives selected from the group comprising about: less than 3% molybdenum (Mo), less than 0.3% niobium (Nb), less than 0.8% vanadium (V), less than 0.2% tantalum (Ta), less than 3% tungsten (W), and combinations thereof, with additional additives selected from the group comprising about: less than 0.2% titanium (Ti), less than 0.2% lanthanum (La) or other rare earth elements, less than 0.15% zirconium (Zr), less than 0.005% boron (B), and combinations thereof, impurities of less than about: 0.02% sulfur (S), 0.012% phosphorus (P), 0.015% oxygen (O) and 0.Type: ApplicationFiled: February 6, 2003Publication date: December 11, 2003Applicant: QuesTek Innovations LLCInventors: Charles J. Kuehmann, Gregory B. Olson, Herng-Jeng Jou