Basic requirements for material selection in corrosion protection design
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Basic requirements for material selection:
1. Â Â Â Â First consider the nature of the medium, temperature, and pressure. The nature of the medium is oxidizing or reducing, and its concentration ; contains no impurities, how the nature of impurities, impurities are to slow corrosion or accelerate corrosion, if it is accelerated corrosion, what is the reason for its acceleration? In addition, PH value and the conductive nature of the corrosion products generated media, have a clear understanding;
2. Â Â Â Â The temperature and pressure of the medium are also important factors to consider.
3. Â Â Â Â In the selection of materials should also consider the environmental corrosion of materials and product special requirements;
4. Â Â Â Â Secondly, the properties of the material should also be taken into consideration. As a structural material, it generally has a certain strength and plasticity;
Basic principles of selection;
1 , the use of materials performance /
1 Â Analyze the working conditions of the component ( P , T , medium, etc.) and determine the performance (strength, stiffness, plasticity, toughness, etc.) that the component should have.
2 Â Through failure analysis, determine the main use performance of the component.
3 Â Starting from the main performance requirements of the components, the requirements for the performance of the materials are proposed.
2 , material processing technology performance
3 , the economics of materials
4 , the choice of materials should meet the requirements of the specification standards
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