S355JR steel plate is a commonly used structural steel, and its stress corrosion cracking behavior is related to its environment, stress level and material microstructure and other factors. Relevant studies have shown that S355JR steel plate is prone to stress corrosion cracking under high stress levels, and its stress corrosion resistance in corrosive media such as chloride ions is poor.
In addition, the degree of cold work hardening of the S355JR steel plate will also affect its stress corrosion cracking behavior. In response to these problems, the occurrence of stress corrosion cracking can be reduced or avoided through reasonable design and material selection, appropriate processing technology and anti-corrosion measures.
To avoid corrosion and cracking of S355JR steel plate, the following measures can be taken:
1. Ensure proper material selection and quality control to avoid the use of defective or unsuitable materials for a particular application.
2. In the process of design and construction, follow relevant standards and specifications to ensure correct design and use of materials.
3. Thoroughly clean and polish the S355JR steel plate before use to remove surface dirt and sundries, as well as possible corrosive substances.
4. Adopt appropriate anti-corrosion measures, such as coating, galvanizing or hot-dip plating, etc., to prevent corrosion.
5. For S355JR steel plate exposed to harsh environments, regular maintenance and inspection are required, and damaged parts are repaired and replaced in time to ensure its service life and durability.
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