What are the characteristics of aluminum alloy and magnesium alloy?

What is the difference between magnesium alloy and aluminum alloy? Here we have to mention the performance of the two, we can see from the magnesium alloy GB T 5154-2010 magnesium alloy plate at room temperature mechanical properties that the commonly used AZ31B magnesium alloy tensile strength is 225-270MPa, the yield strength is 125-186MPa, and the elongation is 5-12%.

GB T 5154-2010 Mechanical properties of magnesium alloy plates.

From the mechanical properties of GB T 5155-2013 magnesium alloy bar at room temperature, it can be seen that the tensile strength of ZK61M magnesium alloy bar with relatively high performance is 305-315MPa, the yield strength is 235-245MPa, and the elongation is more than 6%.

GB T 5155-2013 Magnesium alloy hot extruded bar.

And we can get the mechanical property parameters of aluminum alloy 6061 from the mechanical properties of GB T aluminum alloy, the tensile strength is 290MPa, and the yield strength is 240MPa.

GBT Aluminum alloy mechanical properties.

What are the performance differences between magnesium alloys and aluminum alloys?

The biggest feature of magnesium alloy compared with aluminum alloy is that it has good toughness and increased softness.

The density of pure aluminum is small (=, about 1 3 of iron, low melting point (660), aluminum is a face-centered cubic structure, so it has high plasticity (δ: 32 40%, 70 90%), easy to process, can be made into various profiles, plates, good corrosion resistance; However, the strength of pure aluminum is very low, and the b value in the annealed state is about 8kgf mm2, so it is not suitable as a structural material. Through long-term production practice and scientific experiments, people have gradually strengthened aluminum by adding alloying elements and using heat treatment, which has obtained a series of aluminum alloys.

The alloy formed by adding certain elements can maintain the advantages of pure aluminum and light weight, and can also have high strength, and the B value can reach 24 60kgf mm2 respectively. In this way, its "specific strength" (the ratio of strength to specific gravity b) is better than many alloy steels, and it has become an ideal structural material, which is widely used in machinery manufacturing, transportation machinery, power machinery and aviation industry, etc., and the fuselage, skin, compressor and so on of aircraft are often made of aluminum alloy to reduce their own weight. The welding of aluminum alloy instead of steel plate material can reduce the weight of the structure by more than 50%.

Magnesium alloy is an alloy composed of magnesium as a base and other elements added. Its characteristics are: small density (about magnesium alloy), high specific strength, large elastic modulus, good heat dissipation, good shock absorption, greater impact load capacity than aluminum alloy, good corrosion resistance to organic matter and alkali.

The main alloying elements are aluminum, zinc, manganese, cerium, thorium and a small amount of zirconium or cadmium. At present, magnesium-aluminum alloy is the most widely used, followed by magnesium-manganese alloy and magnesium-zinc-zirconium alloy. It is mainly used in aviation, aerospace, transportation, chemical, rocket and other industrial sectors.

The lightest metal among practical metals, magnesium has a specific gravity of about 2 3 of aluminum and 1 4 of iron. It is the lightest metal among practical metals, with high strength and high rigidity.

The most essential difference between aluminum alloy and magnesium alloy:

1. Aluminum alloy is corrosion-resistant, magnesium alloy is not corrosion-resistant, which is the advantage of aluminum alloy, 2. Magnesium alloy has a small density, lighter than aluminum alloy 1 3, which is the advantage of magnesium alloy, from the performance point of view, magnesium alloy can partially replace aluminum alloy 6 series, mainly used for lightweight needs.

What are the performance differences between magnesium alloys and aluminum alloys?

What is the difference between magnesium alloy and aluminum alloy?

Which is better, magnesium alloy or aluminum alloy? Which one has the highest strength and whose hardness is better?

Answer: Tensile strength, fatigue strength, metal oxidation, specific gravity density, and manufacturing cost are different. 1. Tensile strength The strength of aluminum alloy with the same volume is higher than that of magnesium alloy material. 2. Fatigue strength: The durability of a frame made of magnesium alloy material of the same volume is worse than that of a frame made of aluminum alloy.

3. Metal oxidation From the periodic table, it can be concluded that magnesium alloy is more likely to be oxidized and corroded than aluminum alloy. 4. Specific gravity density Under the same volume conditions, magnesium alloy is lighter than aluminum alloy. 5. Production cost The cost of magnesium alloy is higher than that of aluminum alloy.

1. Tensile strength description: the strength of the frame made of magnesium alloy material of the same volume is not as good as that of aluminum alloy, and the thickness of the material and the pipe warp must be increased to achieve the strength of the frame, so there is no advantage of magnesium alloy compared with aluminum alloy from the perspective of weight.

2. Fatigue strength description: The durability of the frame made of magnesium alloy material of the same volume is worse than that of the aluminum alloy frame. It is also a fatal disadvantage of magnesium alloys.

With the more times you ride, the higher the number of stresses, the strength will be significantly reduced, and even the frame life will not exceed 2-3 years, so professional riders rarely use magnesium alloy frames, and if they are used during the race, they are also calculated and replaced in the form of abandonment.

3. Description of metal oxidation: The periodic table clearly shows that magnesium alloy is more likely to be oxidized and corroded than aluminum alloy.

4. Manufacturing cost description: Because magnesium alloy is a lively metal, the manufacturing equipment and environment have higher requirements, resulting in high manufacturing costs, and the cost performance of the bicycle frame produced is far less than that of the aluminum alloy frame.

5. Specific gravity density description: under the same volume conditions, magnesium alloy is lighter than aluminum alloy, which is the advantage of magnesium alloy.

6. Elastic modulus description: The rigidity of the frame made of magnesium alloy material is worse than that of the aluminum alloy frame, and the frame made of the same thickness and pipe diameter will absorb more pedaling force and affect the riding efficiency when actually riding.

Hello, the difference between aluminum alloy and magnesium alloy bicycles: 1. The difference between the cost of magnesium alloy is a relatively lively metal alloy material, and the manufacturing equipment and environment have higher requirements, resulting in the cost of this material will rise in terms of production, and the cost performance of the bicycle frame produced is not as good as the aluminum alloy frame. 2. Different weight and density, under the same volume conditions, magnesium alloy is lighter than aluminum alloy by one-third, which is the advantage of magnesium alloy.

3. The tensile strength of the frame made of magnesium alloy material of the same volume is far inferior to that of aluminum alloy, and the thickness of the material and the pipe diameter must be increased to achieve the strength of the frame, so there is no advantage in comparing magnesium alloy with aluminum alloy from the perspective of weight, and the tensile strength of aluminum alloy will be greater. I hope to be able to help you, I wish you a happy life, all your wishes, all the best, a happy family, a smooth work, good health, and in general, I wish you all the best in your life.

The difference between beauty, alloy and aluminum alloy is that magnesium aluminum alloy contains magnesium components.

Features of magnesium alloys:

1. Scale stability: This is one of the characteristics of magnesium. When it is removed from the mold, the product has very little residual casting stress, so it does not need to be annealed and destressed.

In the case of loading, the metal also exhibits very good creep resistance. For example, AM die castings are subjected to 100 hours in excess of 120 conditions, as long as the total elongation is reached.

2. Outstanding cutting performance: magnesium has better processing and cutting characteristics than aluminum and zinc, which promotes magnesium to become the easiest metal to be machined.

3. High shock absorption performance: magnesium has excellent stagnation and shock absorption performance, which can absorb vibration and noise, which is very important for reducing noise transmission and providing anti-impact and anti-depression damage as an equipment chassis.

4. Light weight: Under equal rigidity conditions, the strength of one pound of magnesium is equivalent to that of pounds of aluminum and pounds of steel. Together, magnesium can make parts that are just as messy as aluminum, but only one-third lighter.

The above characteristics are crucial for some modern portable products. In the case of vehicles, this feature will significantly reduce their starting inertia and save on fuel consumption.

5. High heat dissipation: Magnesium alloy has high heat dissipation performance, which is suitable for today's planning-intensive electronic products. The thermal conductivity of magnesium alloy is better than that of general structural metals, and the heat source can be quickly dispersed.

Once the laptop computer is overheated, it is easy to make the system unstable, the current heat dissipation method is in the engineering plastic shell, using the heat pipe to open the heat source, adding fin-shaped hot sheets, or electric fans to do forced convection, etc., so the heat conduction can be more than 150 times that of plastic magnesium aluminum alloy, which is the best choice for advanced notebook computers in the future.

6. Outstanding casting performance: Under the condition of maintaining outstanding structure, the wall thickness of magnesium promised castings is as small as that. This is the wall thickness that plastic products cannot reach at the same strength.

As for aluminum alloy, it must also be in the range to be compared with magnesium. In addition, magnesium alloy will not undergo microstructure changes when used for a long time and at high temperatures, and there is no brittleness at low temperatures (below -10).

7. Can be reused: magnesium alloy materials are not scarce, and can be refined from seawater, and there will be no problem that raw materials are not easy to obtain. In addition, the defective magnesium alloy can be completely re-refined and cast as the secondary material of AZ91D, AM50 or AM60.

Due to the increasing demand for die castings, the ability to reuse is very important. This is environmentally friendly, making magnesium alloys more attractive than many plastic materials.

Characteristics of magnesium alloy: It is the lightest metal in practical metals, it is the lightest metal in practical metals, with high strength and high rigidity. Magnesium alloy has the highest relative strength. The specific stiffness is close to aluminum alloy and steel, and much higher than that of engineering plastics.

In the elastic range, when magnesium alloy is subjected to impact load, the energy absorbed is half greater than that of aluminum alloy parts, so magnesium alloy has good seismic and noise reduction performance. The melting point of magnesium alloy is lower than that of aluminum alloy, and the die-casting molding performance is good. The tensile strength of magnesium alloy castings is comparable to that of aluminum alloy castings, generally up to 250MPa, and up to more than 600MPa.

The yield strength and elongation are also not much different from those of aluminum alloys. Magnesium alloy also has good electromagnetic shielding performance, anti-radiation performance, and can be 100% reused.

Magnesium alloy parts have high stability, and the casting row processing of die castings has high dimensional accuracy, and high-precision machining can be carried out. Magnesium alloy has good die-casting molding properties, and the minimum wall thickness of die-casting parts can be dispatched. It is suitable for the manufacture of various types of die castings for automobiles.