公开(公告)号：US20190118251A1

公开(公告)日：2019-04-25

申请号：US16092355

申请日：2016-04-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Bin HU ,  Pan WANG

IPC: B22D21/00 ,  C22F1/043 ,  C22C21/04

Abstract: Methods of casting lightweight, high-strength aluminum cast structural components are provided wherein the casting is accomplished by low-pressure die casting or gravity casting. The aluminum cast structural component is preferably composed of an aluminum-based alloy comprising silicon at ≥about 4 to ≥about 7 wt. %; iron at ≥about 0.15 wt. %; manganese at ≥about 0.5 wt. %; chromium at ≥about 0.15 to ≥about 0.5 wt. %; magnesium at ≥about 0.8 wt. %; zinc at ≥about 0.01 wt. %; titanium at ≥about 0.05 to ≥about 0.15 wt. %; phosphorus at ≥about 0.003 wt. %; strontium at ≥about 0.015 wt. % and a balance of aluminum.

公开(公告)号：US20190276919A1

公开(公告)日：2019-09-12

申请号：US16348864

申请日：2016-12-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Bin HU ,  Pan WANG

IPC: C22F1/043 ,  C22C21/04

Abstract: Provided is a method of heat treating a die cast aluminum alloy component. A die cast component has at least one thin walled region with a thickness of ≤5 mm. The alloy has silicon at ≥6.5 mass % to ≤15.5 mass %, copper at ≥0.1 mass % to ≤3.5 mass %, magnesium at ≤0.5 mass %, manganese at ≤0.6 mass %, and chromium at ≤0.6 mass %. The method includes quenching the die cast component at a cooling rate of ≥ about 100° C./second to a first temperature of less than 50° C. and age hardening by heating the die cast component to a second temperature of ≥ about 150° C. for a predetermined duration of time to facilitate formation of particles of Mg2Si in an aluminum alloy matrix. The aluminum alloy treated by the method can form lightweight, high strength, high ductility components.

公开(公告)号：US20230243023A1

公开(公告)日：2023-08-03

申请号：US17882311

申请日：2022-08-05

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Henry ZHAN ,  Pan WANG ,  Yiwu XU ,  Devin R. HESS ,  Jinping LI

IPC: C22C21/02 ,  C22F1/043

CPC classification number: C22C21/02 ,  C22F1/043

Abstract: Aluminum alloy components may include a composition including concentrations of, in wt. %, chromium of greater than or equal 0 to less than or equal 0.3, manganese of greater than or equal 0 to less than or equal 0.4, silicon of greater than or equal 6.5 to less than or equal 9.5, magnesium of greater than or equal 0 to less than or equal 0.35, iron of greater than or equal 0.2 to less than or equal 0.4, zinc of greater than or equal 0 to less than or equal 0.15, copper of greater than or equal 0 to less than or equal 0.5, titanium of greater than or equal 0 to less than or equal 0.2, strontium of greater than or equal 0 parts per million to less than or equal 200 parts per million, and a balance being aluminum.

公开(公告)号：US20230407446A1

公开(公告)日：2023-12-21

申请号：US17901289

申请日：2022-09-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Henry ZHAN ,  Pan WANG ,  Jianfeng WANG

IPC: C22F1/043 ,  C22F1/00 ,  C22C21/02

CPC classification number: C22F1/043 ,  C22F1/002 ,  C22C21/02

Abstract: Methods and heat-treated cast aluminum alloy components for a vehicle formed from an aluminum alloy having high levels of recycled aluminum scrap are provided. The alloy may have, by mass, silicon at ≥5% to ≤11%, magnesium at ≤0.5%, iron at ≥0.2% to ≤1.1%, copper at ≤0.5%, zinc at ≤0.5%, titanium at ≤0.2%, chromium at ≤0.02%, manganese at ≤0.05%, strontium at ≤200 ppm; an alloying element at ≥50 ppm to ≤500 ppm selected from the group consisting of: barium, lanthanum, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, and combinations thereof, and a balance aluminum. The heat-treated cast aluminum alloy component is substantially free of faceted iron-containing intermetallics having a platelet shape and at least one region has a yield strength of ≥180 MPa and an elongation of ≥7%.

公开(公告)号：US20230383383A1

公开(公告)日：2023-11-30

申请号：US17873740

申请日：2022-07-26

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Pan WANG ,  Henry ZHAN ,  Jianfeng WANG ,  Lepeng ZHANG

IPC: C22C21/02 ,  C22C1/02 ,  B62D29/00

CPC classification number: C22C21/02 ,  C22C1/026 ,  B62D29/008

Abstract: A vehicle including recyclable cast aluminum alloy components. The recyclable cast aluminum alloy components include a vehicle body component and a vehicle chassis component. In combination, the recyclable cast aluminum alloy components include, by mass: silicon in an amount greater than or equal to about 6% to less than or equal to about 11%, magnesium in an amount less than or equal to about 0.5%, iron in an amount greater than or equal to about 0.15% to less than or equal to about 0.25%, manganese in an amount less than or equal to about 0.3%, and greater than or equal to about 88% aluminum. A recycled aluminum alloy component may be cast from a melt of the recyclable cast aluminum alloy components. The recyclable cast aluminum alloy components account for, by mass, greater than or equal to about 70%, about 80%, or about 90% of the recycled aluminum alloy component.

公开(公告)号：US20220380878A1

公开(公告)日：2022-12-01

申请号：US17695623

申请日：2022-03-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Henry ZHAN ,  Jianfeng WANG ,  Pan WANG

IPC: C22F1/04 ,  C22C21/00 ,  C22C1/02

Abstract: An alloy composition is provided. The alloy composition includes from about 0.5 wt. % to about 1.5 wt. % silicon (Si), from about 0.5 wt. % to about 1.5 wt. % magnesium (Mg), from about 0.1 wt. % to about 0.2 wt. % zirconium (Zr), from about 0.2 wt. % to about 0.4 wt. % iron (Fe), from 0 wt. % to about 0.3 wt. % chromium (Cr), from 0 wt. % to about 0.3 wt. % manganese (Mn), from about 0 wt. % to about 1 wt. % copper (Cu), from about 0 wt. % to about 0.2 wt. % titanium (Ti), from about 0 wt. % to about 1 wt. % vanadium (V), and a balance of aluminum (Al). Greater than or equal to about 60% of the alloy composition is derived from Al scrap. Methods of forming the alloy composition and methods of forming an extruded article from the composition are also provided.