TC4 Titanium Alloy Impeller

What is TC4 titanium?

TC4 (Ti-6Al-4 V modified) alloy is a typical representative of medium strength α + β titanium alloys.

It is the most widely used alloy and the first titanium alloy material to be used in the aerospace industry, with the best overall performance and processing properties.

What is the composition of TC4 titanium?

The composition of TC4 titanium alloy is Ti-6Al-4V, which belongs to (α+β) titanium alloy.

It has good comprehensive mechanical properties, high specific strength and good corrosion resistance.

Because of its good biocompatibility, it has been widely used in aerospace, petrochemical, biomedical and other fields.

TC4 Titanium Alloy Impeller Replaces C02 Turbine Compressor Low Alloy Steel Impeller

The impeller of C02 turbine compressor was originally made of 35CrMoV low alloy steel. In the process of using,

the blade inlet of stage 1 and 3 of impeller is corroded and eroded by C02 water mist, and can not be used after a short period of time.

After anti-corrosion treatment, the impeller needs to be repaired for three months and replaced for one year.

TC4 Titanium Impeller

Now the precision casting TC4 alloy replaces 35CrMoV low alloy steel (120 kg titanium), which has the advantages of high mechanical strength, corrosion resistance and good processing performance.

The impeller was continuously operated on January 5, 1981, and it was safe and stable, and the maintenance workload was small. After 5 years of operation,

the inlets of the impeller blades at all levels are inspected and the service life is expected to be more than 20 years.

The original maintenance situation has been changed, and the economic benefits are very significant (see Table 2).

At present, Dalian Chemical Industry Co., Ltd. alkali plant 4 alkali-alkali method, combined with alkali method, a turbine rotor uses TC4 titanium alloy.

TC4 Titanium Impeller