What types of corrosion of titanium pipe include?

The corrosion form of titanium includes two categories: general corrosion and local corrosion: general corrosion is a form that is completely and uniformly corroded; local corrosion is a form of local corrosion relative to general corrosion. It can be divided into: crevice corrosion, spot Corrosion, stress corrosion cracking, galvanic corrosion, abrasion, hydrogen absorption and hydrogen embrittlement.

1. Crevice corrosion: Corrosion that occurs between the flanges or flanges and the gaps near the deposits generally occurs in the narrow gaps.

2. Pitting corrosion: Corrosion that occurs in the process of opening holes, such as the corrosion phenomenon caused by the presence of halogen ions such as C1-, B-wide, and I-.

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

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

5. Galvanic corrosion: also known as dissimilar metal contact corrosion, it is a phenomenon that promotes the corrosion of the metal with the lower potential in the state of electrical short-circuit.

6. Hydrogen absorption and hydrogen embrittlement: Take hydrogen out of the material. When the amount of hydrogen taken out exceeds the solid solution limit of the material, brittle hydrides will be formed and hydrogen embrittlement will occur.
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