公开(公告)号：US11198925B2

公开(公告)日：2021-12-14

申请号：US16087832

申请日：2017-03-10

申请人： Rio Tinto Alcan International Limited

发明人： Francis Breton ,  Bruno Bourassa ,  Alexandre Maltais ,  Clément Boudreault ,  Dany Tremblay

IPC分类号： C22C21/04 ,  B22D21/00 ,  C22F1/043 ,  C22C21/02 ,  C22C1/00 ,  B60B3/00

摘要： The present disclosure provides Al—Si—Mg aluminum alloys comprising a deliberate addition of Mn between 0.05-0.40 weight percent to increase at least one tensile property (such as the yield strength) of an aluminum product comprising such alloy. The Al—Si—Mg alloy comprises, in weight percent, 5-9% Si, 0.35-0.75% Mg, 0.05-0.4% Mn, less than 0.15% Fe, up to 0.15% Ti, 0.005-0.03% Sr and the balance being aluminum and unavoidable impurities, wherein the unavoidable impurities may be present in an amount of up to 0.05% each and up to 0.15% total. The present disclosure provides a foundry ingot comprising the above Al—Si—Mg aluminum alloy, a process for making the above Al—Si—Mg aluminum alloy and an aluminum alloy obtainable by said process.

公开(公告)号：US20230016262A1

公开(公告)日：2023-01-19

申请号：US17784688

申请日：2020-12-07

申请人： Rio Tinto Alcan International Limited

发明人： Mousa Javidani ,  Alexandre Maltais ,  Clément Boudreault ,  Martin Fortier

IPC分类号： C22C21/06 ,  C22F1/047 ,  C21D8/06 ,  C21D8/02

摘要： There is provided a high strength high formable aluminum alloys (Al—Mg—Mn alloy). The aluminum alloy exhibits improved castability by achieving lower required torque at high temperature, while meeting or exceeding the ambient temperature strength and formability requirements for high strength applications. The aluminum alloy comprises in weight percent Mg 1.0-2.0, 0.2-0.95 Mn, 0.05-0.35 Cr with the balance being aluminum and inevitable impurities.

公开(公告)号：US20190136349A1

公开(公告)日：2019-05-09

申请号：US16087832

申请日：2017-03-10

申请人： Rio Tinto Alcan International Limited

发明人： Francis Breton ,  Bruno Bourassa ,  Alexandre Maltais ,  Clément Boudreault ,  Dany Tremblay

IPC分类号： C22C21/04 ,  B22D21/00

摘要： The present disclosure provides Al—Si—Mg aluminum alloys comprising a deliberate addition of Mn between 0.05-0.40 weight percent to increase at least one tensile property (such as the yield strength) of an aluminum product comprising such alloy. The Al—Si—Mg alloy comprises, in weight percent, 5-9% Si, 0.35-0.75% Mg, 0.05-0.4% Mn, less than 0.15% Fe, up to 0.15% Ti, 0.005-0.03% Sr and the balance being aluminum and unavoidable impurities, wherein the unavoidable impurities may be present in an amount of up to 0.05% each and up to 0.15% total. The present disclosure provides a foundry ingot comprising the above Al—Si—Mg aluminum alloy, a process for making the above Al—Si—Mg aluminum alloy and an aluminum alloy obtainable by said process.