TiNrich

TiNrich refers to a class of surface materials characterized by a titanium nitride (TiN)-enriched composition. In TiNrich coatings, TiN constitutes the dominant phase in the superficial layer, often with minor additions of alloying elements or dopants to tailor properties such as adhesion, toughness, and oxidation resistance. The enrichment enhances hardness and wear resistance relative to conventional TiN coatings and can reduce friction under certain counterfaces.

Manufacturing: TiNrich coatings are commonly deposited by physical vapor deposition (PVD) methods, including magnetron sputtering, or by chemical vapor deposition (CVD). Process parameters such as target composition, substrate temperature, and deposition pressure are adjusted to maximize TiN content and achieve a dense, adherent layer. Substrates include cemented carbide, steel, and ceramic tools; TiNrich is used to extend tool life and performance in high-speed cutting, forming, and stamping.

Properties: TiNrich coatings exhibit high hardness, good thermal stability, and chemical inertness, with high wear resistance and moderate fracture toughness improvement when compared with standard TiN. The exact properties depend on thickness, substrate, and alloying additions, with trade-offs between hardness, adhesion, and thermal expansion compatibility.

Applications: primary use in tooling and wear parts; potential applications in microelectronics as protective barriers or diffusion barriers.

History and terminology: The phrase TiNrich is used in some industrial and academic contexts to denote TiN-rich surface layers or coatings. It is not a standardized material grade across all suppliers, and specifications vary by vendor.