Titanium vs. Aluminum: The Differences Explained

What is titanium alloy?

Titanium vs. Aluminum: The Differences Explained 1

Titanium alloy refers to a variety of alloy metals made of titanium and other metals.

Titanium is an important structural metal developed in the 1950s.

Titanium alloy has high strength, good corrosion resistance and high heat resistance.

In the 1950s and 1960s, it mainly developed high-temperature titanium alloys for aero-engines and structural titanium alloys for airframes.

In the 1970s, a number of corrosion-resistant titanium alloys were developed.

Since the 1980s, corrosion-resistant titanium alloys and high-strength titanium alloys have been further developed.

Titanium alloy is mainly used for making compressor parts of aircraft engines, followed by structural parts of rockets, missiles and high-speed aircraft.

What is aluminum alloy?

Titanium vs. Aluminum: The Differences Explained 2

An alloy based on aluminum with a certain amount of other alloying elements is one of the light metal materials.

In addition to the general characteristics of aluminum, aluminum alloys also have specific characteristics of some alloys due to the different types and amounts of alloying elements added.

The density of aluminum alloy is 2.63-2.85g/cm3, with high strength (σb is 110-650MPa), the specific strength is close to that of high alloy steel, and the specific rigidity is higher than that of steel.

It has good casting performance and plastic processing performance, good electrical and thermal conductivity, good corrosion resistance and weldability.

It can be used as structural material, and is widely used in aerospace, aviation, transportation, construction, electromechanical, light industry and daily necessities.

What are the differences between titanium alloy and aluminum alloy?

The main differences are different in nature, characteristics and application, as follows:

1. Different nature

Aluminum alloy

It is an alloy based on aluminum and added with a certain amount of other alloying elements. It is one of the light metal materials.

Titanium alloy

Titanium alloy is an alloy composed of titanium and other elements.

2. Different characteristics

Aluminum alloy

In addition to the general characteristics of aluminum, aluminum alloys also have specific characteristics of some alloys due to the different types and amounts of alloying elements added.

The density of aluminum alloy is 2.63-2.85g/cm, with high strength (σb is 110-650MPa), the specific strength is close to that of high alloy steel, and the specific rigidity is higher than that of steel.

It has good casting performance and plastic processing performance, good electrical and thermal conductivity, good corrosion resistance and weldability, and can be used as structural material.

Titanium alloy

Titanium alloy has the characteristics of high strength, low density, good mechanical property, good toughness and corrosion resistance.

In addition, titanium alloy has poor process performance and difficult cutting process.

In hot processing, it is very easy to absorb impurities such as hydrogen, oxygen, nitrogen and carbon, and has poor wear resistance and complex production process.

3. Different applications

Aluminum alloy

It is widely used in marine industry, chemical industry, aerospace, metal packaging, transportation and other fields.

Titanium alloy

Titanium alloy is mainly used for making compressor parts of aircraft engines, followed by structural parts of rockets, missiles and high-speed aircraft.

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