can you list some engineering design rules which may be important to reduce or prevent corrosion?
can you tell me where can find about this kind of information on internet, as well as give me the websites also, thanks…
You have to know what you are designing and choose the proper materials.
You can search material specs on the interent, and there probably will be some sites that can give specifications.
MSDS sheets for chemicals sometimes give this information.
But, some more information on what you are looking for would be helpful.
Not enought details for a proper answer… What kind of envrioment is the corrosion taking place, in the air or water?
If it’s in the water, search for Galvanic Action and do your own research…
If it’s in the air, search for Bimetalic corrosion…
References :
Uncommon Sence 101
You have to know what you are designing and choose the proper materials.
You can search material specs on the interent, and there probably will be some sites that can give specifications.
MSDS sheets for chemicals sometimes give this information.
But, some more information on what you are looking for would be helpful.
References :
1. avoid attaching two different metals together in a location where moisture is expected. Galvanic corrosion can result.
2. for outdoor parts: avoid water traps. Consider pockets, ledges, or any other "step" ledge where water can accumulate, or where water will not run off without puddling on the part.
3. if corrosive environment is unavoidable (such as a part submerged in water, particularly ocean water), consider using a replaceable, sacrificial anode material to protect the primary structural components.
4. avoid high flow velocities (such as in piping). Make the pipe large enough that the fluid flowing through it does not scour the interior surface and accelerate corrosion.
References :
1. Avoid galvanic corrosion by avoiding dissimilar metal in contact , use insulation at flange joints.
2.consider anti -corrosive protective coating e.g paints, galvanising, anodising, electroplating, phosphatising , wrapping/coating etc.
3. use stainless steel for critical parts.
4. consider cathodic protection (sacrifical anode./ impressed current type)
5. select moc which is compatible with service conditions/ climate/coastal weather .
References :