What is the primary component in tungsten carbide that contributes to its hardness and wear resistance?

The primary component in tungsten carbide that contributes to its hardness and wear resistance is tungsten. Tungsten is known for its exceptional hardness and high melting point, making it an ideal metal for producing cutting tools and wear-resistant surfaces. When combined with carbon, tungsten forms tungsten carbide, which is significantly harder than tool steels and offers superior resistance to abrasion and wear. This combination allows tungsten carbide to maintain its cutting edge even under extreme conditions, making it a popular choice in metalworking and machining applications. The hardness of tungsten carbide is primarily attributed to the characteristics of tungsten itself, alongside the reinforcing presence of carbon.