Low-cost high-strength-tenacity wrought magnesium alloy and preparation method thereof
A technology for magnesium alloys and formed parts, which is applied in the field of low-cost, high-strength and toughness deformed magnesium alloys and their preparation, can solve the problems such as the inability to give full play to the lightweight advantages of magnesium alloys, the inability to meet large-scale industrial production, and the increase in the cost of magnesium alloys. The effect of improving yield and utilization efficiency, more product types, and improving strengthening effect
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Embodiment 1
[0020] The mass percentage of magnesium alloy components is: Zn: 6.1%, Y: 1.0%, Nd: 0.5%, La: 0.4%, Mn: 0.5%, the balance is Mg, and the mass percentages of Y, Nd and La in the component composition The sum is 1.9% of the total mass fraction.
[0021] making process:
[0022] (1) Add the preheated pure Mg and pure Zn into a low-carbon steel crucible, and protect it with 2# solvent. After the pure Mg and pure Zn are completely melted, add manganese chloride at the solution temperature of 757°C, and wait for the temperature to rise. Add Mg-30La, Mg-30Nd and Mg-30Y master alloys respectively when the temperature reaches 792°C. After complete melting, blow Ar gas for 16 minutes for purification treatment. During this process, add 6# solvent for stirring, and then let stand for 10 minutes Finally, the composition sampling in front of the furnace is carried out. If the composition is qualified, the crucible is closed and left standing, and the solution is set to keep warm at 676 ° ...
Embodiment 2
[0029] The mass percentage of magnesium alloy components is: Zn: 6.4%, Y: 0.9%, Nd: 0.6%, La: 0.6%, Mn: 0.6%, the balance is Mg, the sum of the mass percentages of Y, Nd and La in the composition 2.1% of the total mass fraction.
[0030] making process:
[0031] (1) Add the preheated pure Mg and pure Zn into a low-carbon steel crucible, and protect it with 2# solvent. After the pure Mg and pure Zn are completely melted, add manganese chloride at a solution temperature of 750°C, and wait for the temperature to rise. Add Mg-30La, Mg-30Nd and Mg-30Y master alloys respectively when the temperature reaches 780°C. After complete melting, blow Ar gas for 25 minutes for purification treatment. During this process, add 6# solvent for stirring, and then let it stand for 20 minutes Finally, the composition sampling in front of the furnace is carried out. If the composition is qualified, the crucible is closed and left standing, and the melt is set to keep warm at 670°C. When the tempera...
Embodiment 3
[0038] The mass percentage of magnesium alloy components is: Zn: 6.1%, Y: 0.8%, Nd: 0.7%, La: 0.6%, Mn: 0.5%, the balance is Mg, and the mass percentages of Y, Nd and La in the component composition The sum is 2.1% of the total mass fraction.
[0039] making process:
[0040] (1) Add the preheated pure Mg and pure Zn into a low-carbon steel crucible, and protect it with 2# solvent. After the pure Mg and pure Zn are completely melted, add manganese chloride at a solution temperature of 750°C, and wait for the temperature to rise. Add Mg-30La, Mg-30Nd and Mg-30Y master alloys respectively when the temperature is as high as 800°C. After complete melting, blow Ar gas for 20 minutes for purification treatment. During this process, add 6# solvent for stirring, and then let it stand for 18 minutes. Finally, the composition sampling in front of the furnace is carried out. If the composition is qualified, the crucible is closed and left standing, and the melt is set to keep warm at 68...
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