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.

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.

Provided is Mg-based alloy wrought material having improved ductility, formality, and resistance against fracture. Intermetallic compounds may be formed by mutual bonding of added elements to be a fracture origin. While maintaining microstructure for activating non-basal dislocation movement of Mg-based alloy wrought material, added elements to create no fracture origin, but to promote grain boundary sliding were found from among inexpensive and versatile elements. Provided is Mg-based alloy wrought material including at least one element from Zr, Bi, and Sn and at least one element from Al, Zn, Ca, Li, Y, and Gd wherein remainder comprises Mg and unavoidable impurities; an average grain size in a parent phase is 20 μm or smaller; a value of (σ.sub.max−σ.sub.bk)/σ.sub.max (maximum load stress (σ.sub.max), breaking stress (σ.sub.bk)) in a stress-strain curve obtained by tension-compression tests of the wrought material is 0.2 or higher; and resistance against breakage shows 100 kJ or higher.

Provided is Mg-based alloy wrought material having improved ductility, formality, and resistance against fracture. Intermetallic compounds may be formed by mutual bonding of added elements to be a fracture origin. While maintaining microstructure for activating non-basal dislocation movement of Mg-based alloy wrought material, added elements to create no fracture origin, but to promote grain boundary sliding were found from among inexpensive and versatile elements. Provided is Mg-based alloy wrought material including at least one element from Zr, Bi, and Sn and at least one element from Al, Zn, Ca, Li, Y, and Gd wherein remainder comprises Mg and unavoidable impurities; an average grain size in a parent phase is 20 μm or smaller; a value of (σ.sub.max−σ.sub.bk)/σ.sub.max (maximum load stress (σ.sub.max), breaking stress (σ.sub.bk)) in a stress-strain curve obtained by tension-compression tests of the wrought material is 0.2 or higher; and resistance against breakage shows 100 kJ or higher.

According to one implementation, a magnesium-lithium alloy contains not less than 10.50 mass % and not more than 16.00 mass % lithium, not less than 5.00 mass % and not more than 12.00 mass % aluminum, and not less than 2.00 mass % and not more than 8.00 mass % calcium. According to one implementation, a rolled stock is made of the above-mentioned magnesium-lithium alloy. According to one implementation, a processed product includes the above-mentioned magnesium-lithium alloy as a material.

The present disclosure provides a high-plasticity rapidly-degradable Mg-Li-Gd-Ni alloy, including the following chemical elements by mass percentage: 1.0-10.0% of Gd, 0.2-2.0% of Ni, 5.5-10% of Li, and the rest of Mg and inevitable impurities. The impurities have a total content less than or equal to 0.3%. The present disclosure further provides a preparation method of the high-plasticity rapidly-degradable Mg-Li-Gd-Ni alloy. The high-plasticity rapidly-degradable Mg-Li-Gd-Ni alloy provided by the present disclosure constructs an α-Mg+β-Li dual-phase matrix structure by introducing β-Li with a body-centered cubic (BCC) structure with relatively more slip systems to improve plasticity of the alloy, then adds a certain amount of Gd element to weaken texture and promote non-basal plane slip, and further improves plasticity. In addition, by introducing the high-potential Ni-containing LPSO phase, a large potential difference with α-Mg and β-Li is formed to increase the degradation performance.

The present disclosure provides a high-plasticity rapidly-degradable Mg-Li-Gd-Ni alloy, including the following chemical elements by mass percentage: 1.0-10.0% of Gd, 0.2-2.0% of Ni, 5.5-10% of Li, and the rest of Mg and inevitable impurities. The impurities have a total content less than or equal to 0.3%. The present disclosure further provides a preparation method of the high-plasticity rapidly-degradable Mg-Li-Gd-Ni alloy. The high-plasticity rapidly-degradable Mg-Li-Gd-Ni alloy provided by the present disclosure constructs an α-Mg+β-Li dual-phase matrix structure by introducing β-Li with a body-centered cubic (BCC) structure with relatively more slip systems to improve plasticity of the alloy, then adds a certain amount of Gd element to weaken texture and promote non-basal plane slip, and further improves plasticity. In addition, by introducing the high-potential Ni-containing LPSO phase, a large potential difference with α-Mg and β-Li is formed to increase the degradation performance.

A method and its application for regulating heat treatment derived from the in-situ collection of information. In-situ collecting information and/or data during heat treatment on a test piece, comparing the information or data with relevant information or data in a heat treatment information database, detecting or characterizing a heat treatment extent or state of the test piece, thereby optimizing a heat treatment process of the material and/or regulating the heat treatment of the test piece. The heat treatment includes homogenization, solid solution treatment, aging, recovery and recrystallization annealing. The in-situ collection is to collect information or data of the test piece in an actual heat treatment environment in real time. The heat treatment information database includes relevant information and data of material, heat treatment process, and heat treatment procedure, which can be continuously improved and optimized through subsequent detection and self-learning.

The present invention relates to a biodegradable alloy of Formula (I): Mg—Zn—X, wherein X represents —Ca—Mn or —Dy—Sr, wherein Zn is about 0.1 wt % to about 3.0 wt %, Dy is about 0.1 wt % to about 0.7 wt %, Sr is about 0.1 wt % to about 0.9 wt %, Ca is about 0.1 wt % to about 1.5 wt %, Mn is about 0.1 wt % to about 0.9 wt % and Mg is balance with impurities. The present invention further relates to a method for producing alloys, wherein the method comprises: (a) placing alloy components in a crucible, wherein the alloy components are placed in the crucible in a multilayer arrangement; (b) melting the alloy components at about 700° C. to about 850° C.; (c) stirring the melt of step (b) at about 400 rpm to about 500 rpm; (d) atomizing the melt of step (c) into millimeter size droplets using jets of inert gas; and (e) cooling and depositing the atomized alloy melt to obtain an ingot.

The present invention relates to a biodegradable alloy of Formula (I): Mg—Zn—X, wherein X represents —Ca—Mn or —Dy—Sr, wherein Zn is about 0.1 wt % to about 3.0 wt %, Dy is about 0.1 wt % to about 0.7 wt %, Sr is about 0.1 wt % to about 0.9 wt %, Ca is about 0.1 wt % to about 1.5 wt %, Mn is about 0.1 wt % to about 0.9 wt % and Mg is balance with impurities. The present invention further relates to a method for producing alloys, wherein the method comprises: (a) placing alloy components in a crucible, wherein the alloy components are placed in the crucible in a multilayer arrangement; (b) melting the alloy components at about 700° C. to about 850° C.; (c) stirring the melt of step (b) at about 400 rpm to about 500 rpm; (d) atomizing the melt of step (c) into millimeter size droplets using jets of inert gas; and (e) cooling and depositing the atomized alloy melt to obtain an ingot.