Corrosion classification
Corrosion classification
(OP)
Good morning:
Is there a colormetric or spectrophotometric method or equipment to classify corrosion? We have steel parts that have been coated with electrolytic zinc. Some parts have white corrosion, some have rust. We would like to classify the corrosion and lack of corrosion my color, if possible. I appreciate any suggestions. Thank you and have a great day.
Steve d
Is there a colormetric or spectrophotometric method or equipment to classify corrosion? We have steel parts that have been coated with electrolytic zinc. Some parts have white corrosion, some have rust. We would like to classify the corrosion and lack of corrosion my color, if possible. I appreciate any suggestions. Thank you and have a great day.
Steve d





RE: Corrosion classification
RE: Corrosion classification
Thanks for the reply. Have a great day.
Steve d
RE: Corrosion classification
Regards
RE: Corrosion classification
I thank you for the reply. Take care,
Steve d
RE: Corrosion classification
Generally there are 8 types of corrosion out there (SCC, MIC, EIC, fatigue, H2 Embrittlement etc etc). I'm not sure you were saying to classify all these corrosion types or just distinguish between the Zn rust and steel rust? If the latter you meant, simplest and fastest -- visual + concentrate + little experience.
Hope this helps
RE: Corrosion classification
Thank you for the reply and the information. Please have a great week.
Steved
RE: Corrosion classification
I have some comment on the finish after the Zinc plating.
Basically any plating process finish depends on the finish of the part before plating also. For the first problem of white marks the major reason would be.
>Either the finish is rough- ground finish is preferable.
>Or the part is stripped and replated for some reason. This sould be avoided.
Second problem if the part is getting rusted, please ensure that the plating thickness is minimum of 5 microns for a normal usage. This can be checked using a plating thickness tester.
RE: Corrosion classification
Thank you,
steved