What are the types of corrosion of titanium tubes?

The corrosion form of Grade 2 Pure Titanium Tube includes two categories: general corrosion and local corrosion: general corrosion is a form of corrosion that is comprehensive and uniform; local corrosion is a form of local corrosion relative to general corrosion. It can also be divided into: crevice corrosion, point corrosion Corrosion, stress corrosion cracking, galvanic corrosion, abrasion, hydrogen absorption and hydrogen embrittlement.

1. Crevice corrosion: The corrosion phenomenon that occurs at the flange or fold and the gap near the accumulation, generally occurs in the narrow gap.

2. Pitting corrosion: Corrosion that occurs during opening, such as the corrosion phenomenon caused by the presence of halogen ions such as C1-, B-, I-, etc.

3. Stress corrosion cracking: In a specific environment, due to the action of tensile stress, a kind of brittle failure occurs.

4. Abrasion: The phenomenon that the fluid promotes electrochemical corrosion due to mechanical action.

5. Galvanic corrosion: also known as dissimilar metal contact corrosion, it is a phenomenon in which the metal with the lower potential is promoted to corrode under the condition of electrical short circuit.

6. Hydrogen absorption and hydrogen embrittlement: take hydrogen out of the material, and when the amount of hydrogen taken out exceeds the solid solution limit of the material, brittle hydrides will be formed, resulting in hydrogen embrittlement.