What is the advantage of titanium nitride coating on tungsten carbide?

I. Overview of titanium nitride coating technology

Titanium nitride (TiN) coating is a protective layer widely used on the surface of cemented carbide. It is uniformly coated on the surface of the alloy by techniques such as physical vapor deposition (PVD) or chemical vapor deposition (CVD) to form a hard and dense film. This film can not only enhance the hardness of cemented carbide, but also improve its wear resistance and corrosion resistance, thereby extending the service life of tools or parts.

Second, the role of titanium nitride coating on cemented carbide

1. Improve hardness and wear resistance

The titanium nitride coating has a very high hardness and can effectively resist the engraving and scratching of external substances. When titanium nitride coating is applied to the surface of cemented carbide, its hardness and wear resistance are significantly improved, which is critical for tools and parts that need to withstand high levels of friction and impact.

2. Enhance corrosion resistance

The titanium nitride coating also has excellent corrosion resistance, which can protect the cemented carbide from the erosion of chemical substances such as acid and alkali. This is particularly important in some specific industrial environments, such as chemical, petroleum, Marine and other fields.

Iii. Titanium nitride coating process and application effect

The preparation process of titanium nitride coating mainly includes PVD and CVD. Through these advanced technologies, a uniform and dense titanium nitride film can be formed on the surface of cemented carbide. In practical applications, tools and parts such as cemented carbide tools and molds treated with titanium nitride coating show significant advantages in terms of service life and cutting efficiency.

In summary, the application of titanium nitride coating on cemented carbide has many advantages, which can significantly improve the performance and service life of cemented carbide. With the continuous development of science and technology, titanium nitride coating technology will show its broad application prospects in more fields.