Titanium, as a lightweight, high-strength metal, has demonstrated its unique advantages in various fields. From aerospace to healthcare, from marine engineering to sporting goods, titanium plays a key role. However, like any material, titanium is not 100% perfect. Next, we will look at the advantages and disadvantages of titanium.
장점
1. Low density and high strength
The density of titanium is 4.51g/cm삼, which is 57% of steel. It is only a little more than half of steel and less than twice that of aluminum. Its strength is three times greater than aluminum. The specific strength of titanium alloy is the largest among commonly used industrial alloys. Titanium The specific strength of the alloy is 3.5 times that of stainless steel, 1.3 times that of aluminum alloy, and 1.7 times that of magnesium alloy.
2. Excellent corrosion resistance
The passivity of titanium depends on the existence of an oxide film. Its corrosion resistance in oxidizing media is much better than that in reducing media, and high-rate corrosion can occur in reducing media. Titanium is not corroded in some corrosive media, such as seawater, wet chlorine, chlorite and hypochlorite solutions, nitric acid, chromic acid, metal chlorides, sulfides, and organic acids.
3. Good heat resistance
Generally, aluminum loses its original high mechanical properties at 150℃ and stainless steel at 310℃, while titanium alloy still maintains good mechanical properties at about 500℃. Titanium has good heat resistance and is suitable for turbine disks and blades of aircraft engine compressors and skins of aircraft rear fuselages.
4. Biocompatible, non-magnetic
Titanium is a non-magnetic metal and will not be magnetized in a large magnetic field. It is non-toxic and has good compatibility with human tissue and blood.
5. Small thermal conductivity
The thermal conductivity of titanium is small, only 1/5 of steel, 1/13 of aluminum, and 1/25 of copper.
6. Small elastic modulus
The elastic modulus of titanium is approximately 55% that of iron.
7. Low damping resistance
This property of titanium can be used as tuning forks, vibration components of medical ultrasonic pulverizers, and vibration films of high-end audio speakers.
Disadvantages
1. High cost
Titanium is generally more expensive than other types of metals,The price of titanium is 5-10 times that of stainless steel.
2. Difficulty in processing
The processing of titanium metal usually requires the use of special processes and equipment, and requires a high level of technology and experience to ensure processing quality and efficiency.
3. Difficult to weld
Due to its high reactivity, high melting point, poor thermal conductivity and other factors, titanium requires special welding techniques and processes to ensure welding quality.
4. Poor thermal conductivity
Due to the influence of factors such as its lattice structure, electronic structure, and lattice defects, titanium has poor thermal conductivity and is therefore not suitable for certain applications that require heat transfer.
5. Low surface hardness
Compared with stainless steel, the surface hardness of pure titanium is about HRC20, and stainless steel can usually reach HRC56-58, so it is easier to scratch during use.
결론
While titanium has many advantages, it also has some inevitable disadvantages. It is strong, corrosion-resistant, and has good biocompatibility. However, its biggest disadvantage is that it is expensive compared with stainless steel and other metals. We hope this article will help you make the right choice when choosing titanium materials.
If you are considering titanium as your solution, please 문의하기 to get a free quote. We are a titanium metal manufacturer with 15 years of production experience. We have a large inventory of titanium metal materials, including titanium tubes, titanium rods, titanium wires and titanium plates. If you require custom titanium products, please contact our team at mandy@tisupplier.com