Patents by Inventor Congjie Wang
Congjie Wang 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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Patent number: 11926886Abstract: A master alloy including an alloy composition including magnesium (Mg) at a concentration of greater than or equal to about 1.00 wt. % to less than or equal to about 90 wt. %, boron (B) at a concentration of greater than or equal to about 0.01 wt. % to less than or equal to about 20 wt. %, and aluminum (Al) at a concentration of greater than or equal to about 0.1 wt. % to less than or equal to about 90 wt. %, wherein the alloy composition includes MgB2 particles at a volume fraction greater than or equal to about 0.01% to less than or equal to about 20%.Type: GrantFiled: December 30, 2021Date of Patent: March 12, 2024Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Henry Zhan, Congjie Wang
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Publication number: 20230383385Abstract: Methods of making magnesium-based alloy components are provided. A preform of a magnesium-based alloy having a plurality of zirconium-rich domains distributed in a magnesium-alloy matrix is subjected to a temperature of ? about 360° C. and a deformation process that facilitates selective dynamic recrystallization to create a bimodal microstructure in the magnesium-based alloy component having a plurality of un-recrystallized regions distributed in a matrix comprising dynamically recrystallized grains. The magnesium-based alloy includes zinc (Zn) at ? about 2 to ? about 4 wt. % of the magnesium-based alloy, zirconium (Zr) at ? about 0.62 wt. % to ? about 1 wt. % of the magnesium-based alloy, total impurities at ? about 0.1 wt. % of the magnesium-based alloy, and a balance of magnesium (Mg). Hot-formed magnesium-based alloy components formed from such methods are also contemplated, including automotive components.Type: ApplicationFiled: July 29, 2022Publication date: November 30, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Congjie WANG, Henry ZHAN, Michael J. LAUCKNER
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Publication number: 20230381845Abstract: The present disclosure provides a method of forming an extruded billet from a coarse-grained magnesium alloy billet. The method includes extruding the coarse-grained magnesium alloy biller at temperatures greater than or equal to about 300° C. to less than or equal to about 360° C. to from the extruded billet. The coarse-grained magnesium alloy billet has an average grain size greater than or equal to about 800 ?m, and has a low aluminum content. The coarse-grained magnesium alloy billet includes greater than or equal to about 0.5 wt. % to less than or equal to about 3 wt. % of aluminum. The extruded billet may have a plurality of twins with lenticular morphology, which occupies an area fraction greater than or equal to about 20% of a total area of the extruded billet.Type: ApplicationFiled: July 25, 2022Publication date: November 30, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Henry ZHAN, Congjie WANG
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Patent number: 11781197Abstract: A method of forming a component includes providing a work-piece blank from a formable material. The work-piece blank includes at least one section having a surface roughness greater than 1 ?m configured to facilitate efficient radiation of thermal energy therefrom when the work-piece blank is heated. The method also includes austenitizing the work-piece blank via heating the work-piece blank at a predetermined temperature for a predetermined amount of time to achieve an austenite microstructure in the at least one section and forestall oxidation of the work-piece blank. The method additionally includes transferring the austenitized work-piece blank into a forming press. The method also includes forming the component via the forming press from the austenitized work-piece blank. The method additionally includes quenching the component formed from the austenitized work-piece blank and cooling the formed component.Type: GrantFiled: August 17, 2022Date of Patent: October 10, 2023Assignee: GM Global Technology Operations LLCInventors: Qi Lu, Congjie Wang, Jianfeng Wang, Zhisong Chai, Wei Xu
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Patent number: 11766713Abstract: A method to form a magnesium article includes: heating materials including magnesium, aluminum, manganese and tin in a furnace to create an alloy having a composition of; the magnesium in an amount greater than or equal to 90% by weight of the materials; the aluminum ranging between approximately 2.0% up to approximately 4.0% by weight of the materials; the manganese ranging between approximately 0.43% up to approximately 0.6% by weight of the materials; and the tin ranging between approximately 1% up to approximately 3% by weight of the materials; chill casting the alloy to create a cast billet; and heating the cast billet at a temperature ranging from approximately 380° C. up to approximately 420° C. and maintaining the temperature for a time period between approximately 4 hours to 10 hours to homogenize element distribution.Type: GrantFiled: September 22, 2021Date of Patent: September 26, 2023Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Henry Zhan, Congjie Wang
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Publication number: 20230243012Abstract: A method of forming a component includes providing a work-piece blank from a formable material. The work-piece blank includes at least one section having a surface roughness greater than 1 µm configured to facilitate efficient radiation of thermal energy therefrom when the work-piece blank is heated. The method also includes austenitizing the work-piece blank via heating the work-piece blank at a predetermined temperature for a predetermined amount of time to achieve an austenite microstructure in the at least one section and forestall oxidation of the work-piece blank. The method additionally includes transferring the austenitized work-piece blank into a forming press. The method also includes forming the component via the forming press from the austenitized work-piece blank. The method additionally includes quenching the component formed from the austenitized work-piece blank and cooling the formed component.Type: ApplicationFiled: August 17, 2022Publication date: August 3, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Qi Lu, Congjie Wang, Jianfeng Wang, Zhisong Chai, Wei Xu
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Publication number: 20230095748Abstract: The present disclosure provides a cast aluminum component prepared using an aluminum alloy composition. The aluminum alloy composition includes greater than or equal to about 3 wt. % to less than or equal to about 9 wt. % of silicon, greater than or equal to about 0.2 wt. % to less than or equal to about 0.6 wt. % of magnesium, greater than or equal to about 0.15 wt. % to less than or equal to about 0.8 wt. % of iron, greater than or equal to about 0.15 wt. % to less than or equal to about 0.6 wt. % of a combined concentration of chromium and manganese, greater than or equal to about 0.05 wt. % to less than or equal to about 0.2 wt. % of a combined concentration of vanadium and titanium, and a balance of aluminum. Greater than or equal to about 40 wt. % of the aluminum alloy composition is derived from post-consumer aluminum scrap.Type: ApplicationFiled: May 6, 2022Publication date: March 30, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Henry ZHAN, Paul N. CREPEAU, Congjie WANG
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Publication number: 20230050499Abstract: A method to form a magnesium article includes: heating materials including magnesium, aluminum, manganese and tin in a furnace to create an alloy having a composition of; the magnesium in an amount greater than or equal to 90% by weight of the materials; the aluminum ranging between approximately 2.0% up to approximately 4.0% by weight of the materials; the manganese ranging between approximately 0.43% up to approximately 0.6% by weight of the materials; and the tin ranging between approximately 1% up to approximately 3% by weight of the materials; chill casting the alloy to create a cast billet; and heating the cast billet at a temperature ranging from approximately 380° C. up to approximately 420° C. and maintaining the temperature for a time period between approximately 4 hours to 10 hours to homogenize element distribution.Type: ApplicationFiled: September 22, 2021Publication date: February 16, 2023Inventors: Henry Zhan, Congjie Wang
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Patent number: 11548317Abstract: A brake rotor includes a friction portion, a hat portion axially extending from the friction portion and including a top face that is axially displaced from the friction portion and a side wall that extends from the friction portion to the top face, and a nose portion which extends axially from the top face of the hat portion away from the friction portion.Type: GrantFiled: June 17, 2020Date of Patent: January 10, 2023Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Henry Zhan, Jianfeng Wang, Congjie Wang, Ming Liu, Anil K. Sachdev
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Publication number: 20220356540Abstract: A steel composition is provided. The steel composition includes 0.02-0.45 wt. % carbon (C), 0-8 wt. % manganese (Mn), 0-8 wt. % nickel (Ni), 11-17 wt. % chromium (Cr), 1-3 wt. % silicon (Si), and a balance of iron (Fe). The combined concentration of the Mn and Ni is 2-8 wt. %. The steel composition is configured to form a surface oxide layer including oxides of at least one of the Cr or the Si after being subjected to press hardening. Press-hardened steel (PHS) fabricated from the steel composition and a method of fabricating a (PHS) component from the steel composition are also provided.Type: ApplicationFiled: December 20, 2021Publication date: November 10, 2022Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Qi LU, Jianfeng WANG, Congjie WANG, Qingquan LAI
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Publication number: 20220251689Abstract: A magnesium alloy matrix having an alloy composition including aluminum at a concentration of between 0.5 wt. % to 2.5 wt. %, manganese at a concentration of between 0.3 wt. % to 1.0 wt. %, the concentration of manganese is greater than or equal to a value of [Mn] determined by a linear function [Mn]=x[Al], where x is at least 0.6 when [Al]=0.5 and is at least 0.14 when [Al]=2.5, zinc at a concentration of between 0 wt. % to 3 wt. %, tin at a concentration of between 0 wt. % to 3 wt. %, calcium at a concentration of between 0 wt. % to 0.5%, rare earth metals at a concentration of between 0 wt. % to 5 wt. %, and a balance of the alloy composition being magnesium.Type: ApplicationFiled: January 17, 2022Publication date: August 11, 2022Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Henry ZHAN, Congjie WANG
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Publication number: 20220205068Abstract: A master alloy including an alloy composition including magnesium (Mg) at a concentration of greater than or equal to about 1.00 wt. % to less than or equal to about 90 wt. %, boron (B) at a concentration of greater than or equal to about 0.01 wt. % to less than or equal to about 20 wt. %, and aluminum (Al) at a concentration of greater than or equal to about 0.1 wt. % to less than or equal to about 90 wt. %, wherein the alloy composition includes MgB2 particles at a volume fraction greater than or equal to about 0.01% to less than or equal to about 20%.Type: ApplicationFiled: December 30, 2021Publication date: June 30, 2022Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Henry ZHAN, Congjie WANG
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Publication number: 20210394554Abstract: A brake rotor includes a friction portion, a hat portion axially extending from the friction portion and including a top face that is axially displaced from the friction portion and a side wall that extends from the friction portion to the top face, and a nose portion which extends axially from the top face of the hat portion away from the friction portion.Type: ApplicationFiled: June 17, 2020Publication date: December 23, 2021Inventors: Henry Zhan, Jianfeng Wang, Congjie Wang, Ming Liu, Anil K. Sachdev