# US 12,595,535 B2 · Cast magnesium alloy with improved ductility > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,595,535 B2 - Document ID: US12595535B2 - Status: Granted - Kind: B2 - Application number: 18/177,618 - Filed: 2023-03-02 - Published: 2023-09-07 - Granted: 2026-04-07 - Earliest claimed: 2022-03-04 - Assignees: Magnesium Products of America Inc. - Applicants: Magnesium Products of America Inc. - Inventors: Gerry Gang Wang; Jonathan Patrick Weiler - Web page: https://patentgrep.com/patent/US12595535B2 ## CPC - C22C 23/02: with aluminium as the next major constituent - C22C: ALLOYS (treatment of alloys C21D, C22F) ## Abstract A magnesium alloy can include magnesium, about 3.4 wt % to about 5.5 wt % aluminum, about 0.40 wt % to about 1.5 wt % zinc, and about 0.26 wt % to about 0.36 wt % manganese. The magnesium alloy may exhibit an ultimate tensile strength from about 210 MPa to about 260 MPa, a yield strength from about 100 MPa to about 135 MPa, and an elongation from about 8% to about 15%. The magnesium alloy may exhibit a bend angle from about 46° to about 54°. ## Claims ### Claim 1 A magnesium alloy, comprising: magnesium; about 3.4 wt % to about 5.5 wt % aluminum; about 0.40 wt % to about 1.5 wt % zinc; about 0.26 wt % to about 0.36 wt % manganese; and about 0.35 wt % to about 0.69 wt % φ-AlMgZn, wherein the magnesium alloy has a ductility greater than a ductility of at least one of an AM50 alloy or an AM60 alloy. ### Claim 2 (depends on 1) The magnesium alloy of claim 1, wherein the magnesium alloy comprises: about 4.3 wt % aluminum; about 0.9 wt % zinc; and about 0.3 wt % manganese. ### Claim 3 (depends on 1) The magnesium alloy of claim 1, wherein the magnesium alloy comprises: about 3.5 wt % aluminum; about 0.6 wt % zinc; and about 0.3 wt % manganese. ### Claim 4 (depends on 1) The magnesium alloy of claim 1, wherein the magnesium alloy comprises: 5.0 wt % aluminum; and 1 wt % zinc. ### Claim 5 (depends on 1) The magnesium alloy of claim 1, further comprising α-Mg, Mg17Al12, and Al8Mn5. ### Claim 6 (depends on 1) The magnesium alloy of claim 1, further comprising α-Mg, Mg17Al12, φ-Mg6(Zn, Al)5, τ-Mg32(Al, Zn)49, and Mg12Zn13. ### Claim 7 (depends on 1) The magnesium alloy of claim 1, wherein the magnesium alloy exhibits an ultimate tensile strength from about 210 MPa to about 260 MPa. ### Claim 8 (depends on 1) The magnesium alloy of claim 1, wherein the magnesium alloy exhibits a yield strength from about 100 MPa to about 135 MPa. ### Claim 9 (depends on 1) The magnesium alloy of claim 1, wherein the magnesium alloy exhibits an elongation from about 8% to about 15%. ### Claim 10 (depends on 1) The magnesium alloy of claim 1, wherein the magnesium alloy exhibits a bend angle from about 46° to about 54°. ### Claim 11 A cast component, comprising: a magnesium alloy comprising: magnesium; about 3.4 wt % to about 5.5 wt % aluminum; about 0.40 wt % to about 1.5 wt % zinc; about 0.26 wt % to about 0.36 wt % manganese; and about 0.35 wt % to about 0.69 wt % φ-AlMgZn, wherein the magnesium alloy exhibits an ultimate tensile strength from about 210 MPa to about 260 MPa; wherein the magnesium alloy exhibits a yield strength from about 100 MPa to about 135 MPa; wherein the magnesium alloy exhibits an elongation from about 8% to about 15; %; and wherein the magnesium alloy has a ductility greater than a ductility of at least one of an AM50 alloy or an AM60 alloy. ### Claim 12 (depends on 11) The cast component of claim 11, wherein the magnesium alloy comprises α-Mg17Al12, φ-Mg6(Zn, Al)5, τ-Mg32(Al, Zn)49, and Mg12Zn13. ### Claim 13 (depends on 11) The cast component of claim 11, wherein the magnesium alloy comprises α-Mg, Mg17Al12, and Al8Mn8. ### Claim 14 (depends on 11) The cast component of claim 11, wherein the magnesium alloy exhibits a bend angle from about 47° to about 52°. ### Claim 15 (depends on 11) The cast component of claim 11, wherein the magnesium alloy comprises: less than 0.1 wt % copper. ### Claim 16 (depends on 11) The cast component of claim 11, wherein the magnesium alloy comprises: 0 wt % to 0.01 wt % copper. ### Claim 17 (depends on 11) The cast component of claim 11, wherein the magnesium alloy comprises trace elements comprising: less than 0.10 wt % silicon; less than 0.010 wt % copper; less than 0.005 wt % iron; and less than 0.002 wt % nickel. ### Claim 18 (depends on 11) The cast component of claim 11, wherein the magnesium alloy comprises: about 0.51 wt % φAlMgZn; and about 4.2 wt % Mg17Al12. ### Claim 19 (depends on 11) The cast component of claim 11, wherein the magnesium alloy comprises about 3.0 wt % to about 4.2 wt % Mg17Al12. ### Claim 20 (depends on 11) The cast component of claim 11, wherein the magnesium alloy comprises: about 0.40 wt % φ-AlMgZn; and about 3.0 wt % Mg17Al12.