The corrosion resistance of cemented carbide is mainly related to the following factors:
- Chemical composition: The chemical composition of cemented carbide has a great influence on its corrosion resistance. Some elements such as titanium and zirconium have good corrosion resistance and can improve the corrosion resistance of cemented carbide.
- Surface quality: Factors such as the smoothness and cleanliness of the cemented carbide surface will also affect its corrosion resistance. Carbide with poor surface quality is susceptible to corrosion, oxidation and peeling.
- Structural characteristics: The surface structure and crystal structure of different materials are different, which affects their response to the external environment, thereby affecting the corrosion resistance of the material. For example, porous materials generally do not have very good corrosion resistance, and treated solid metal surfaces often receive some surface treatment to improve their corrosion resistance.
- Environmental conditions: Environmental conditions include factors such as medium, temperature, humidity, and air pressure. Different environmental conditions will affect the corrosion resistance of cemented carbide. For example, high temperature and high humidity environments may accelerate the oxidation process of cemented carbide and reduce its corrosion resistance.
Generally speaking, the corrosion resistance of cemented carbide is related to factors such as its chemical composition, surface quality, structural characteristics, and environmental conditions. During the design and use process, these factors should be fully considered to improve the corrosion resistance of cemented carbide and extend its service life.
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