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A high-strength corrosion-resistant and heat-resistant magnesium alloy material and its preparation method

Active Publication Date: 2021-02-23
山东融金粉末科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The application of magnesium alloys in various environments will inevitably cause corrosion problems, because the chemical activity of magnesium determines that the corrosion resistance of magnesium alloys will not be ideal, and corrosion may affect its application effect in various application environments Or life, which will greatly increase the application cost of magnesium alloy
Magnesium Alloys Lose Momentum When Application Costs Are Too High

Method used

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  • A high-strength corrosion-resistant and heat-resistant magnesium alloy material and its preparation method
  • A high-strength corrosion-resistant and heat-resistant magnesium alloy material and its preparation method
  • A high-strength corrosion-resistant and heat-resistant magnesium alloy material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The mass fraction of Zn is 3.5%, the mass fraction of B is 0.6%, the mass fraction of Ca is 10%, the mass fraction of Sm is 2%, the mass fraction of Nd is 3%, and the mass fraction of Mg is 80.9%.

[0023] (1) Proportioning the magnesium alloy composition by mass,

[0024] (2) Each element is heated in the preheating furnace, and iron crucible is used to melt in the melting furnace. At the same time, N2 protective gas is introduced into the preheating furnace and the melting furnace. First, metal Mg is smelted, and then the mass fraction is from high to Add in sequence, mechanical stirring and ultrasonic treatment after all melting, the preheating temperature is 200°C, the melting temperature is 800°C,

[0025] (3) Keep the smelted metal solution at a cooling temperature of 700°C for pouring,

[0026] (4) Treat the poured metal through a standard heat treatment process.

[0027] The magnesium alloy obtained in this example has a room temperature tensile strength of 29...

Embodiment 2

[0029] The mass fraction of Zn is 6%, the mass fraction of B is 1.5%, the mass fraction of Ca is 15%, the mass fraction of Sm is 4%, the mass fraction of Nd is 6%, and the mass fraction of Mg is 68.5%.

[0030] (1) Proportioning the magnesium alloy composition by mass,

[0031] (2) Each element is heated in the preheating furnace, and iron crucible is used to smelt in the melting furnace. At the same time, argon protective gas is introduced into the preheating furnace and the melting furnace, and the metal Mg is first smelted, and then the mass fraction is from high to high. Add in sequence, mechanical stirring and ultrasonic treatment after all melting, the preheating temperature is 300°C, the melting temperature is 900°C,

[0032] (3) Keep the smelted metal solution at a cooling temperature of 700°C for pouring,

[0033] (4) Treat the poured metal through a standard heat treatment process.

[0034] The heat-resistant magnesium alloy obtained in this example has a room temp...

Embodiment 3

[0036] The mass fraction of Zn is 4.5%, the mass fraction of B is 1%, the mass fraction of Ca is 12%, the mass fraction of Sm is 2.5%, the mass fraction of Nd is 4%, and the mass fraction of Mg is 76%.

[0037] (1) Proportioning the magnesium alloy composition by mass,

[0038] (2) Each element is heated in the preheating furnace, and iron crucible is used to melt in the melting furnace. At the same time, N2 protective gas is introduced into the preheating furnace and the melting furnace. First, metal Mg is smelted, and then the mass fraction is from high to Add in sequence, mechanical stirring and ultrasonic treatment after all melting, the preheating temperature is 250°C, the melting temperature is 850°C,

[0039] (3) Keep the smelted metal solution at a cooling temperature of 700°C for pouring,

[0040] (4) Treat the poured metal through a standard heat treatment process.

[0041] The heat-resistant magnesium alloy obtained in this example has a room temperature tensile s...

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Abstract

The invention discloses a high-strength corrosion-resistant and heat-resistant magnesium alloy material and a preparation method thereof, mainly relating to the technical field of light alloy materials, including Zn, B, Ca, Sm, and Nd, and the mass fraction of Zn is 3.5-6%. , the mass fraction of B is 0.6-1.5%, the mass fraction of Ca is 10-15%, the mass fraction of Sm is 2-4%, the mass fraction of Nd is 3-6%, and the balance is Mg, through Zn, B, Ca, Sm , Nd alloy scientific formula design, to achieve lower cost and greatly improve the corrosion resistance and high temperature resistance of magnesium alloys.

Description

technical field [0001] The invention mainly relates to the technical field of light alloy materials, in particular to a high-strength corrosion-resistant and heat-resistant magnesium alloy material and a preparation method thereof. Background technique [0002] As the lightest structural material at present, magnesium alloy has a density of 1.75-1.90g / cm3, which is only 1 / 4 of that of steel. [0003] 2 / 3 of gold. Compared with other metal materials, magnesium alloy has high specific strength, specific stiffness, good machinability, electromagnetic protection characteristics, damping performance and thermal conductivity, and is easy to recycle. In the current shortage of iron ore, titanium ore and aluminum ore resources, the development and utilization of magnesium as an alternative material has become an inevitable trend. Therefore, magnesium alloy is known as "21st century commercial green environmental protection and ecological metal structure material", and is being wid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C23/00C22C1/02C22F1/06
Inventor 李建国李国平
Owner 山东融金粉末科技股份有限公司