Contamination of P91 Material By Carbon Steel
Contamination of P91 Material By Carbon Steel
(OP)
Can anyone give me some more detailed information on the phenomenon of carbon contamination of P91 material when it comes into contact with carbon steel (e.g. when carbon steel is used to lift P91 material, some of the carbon steel material gets embedded into the P91 material). Specifically, what happens to the microstructure of the P91, and what are the results of this kind of contamination?





RE: Contamination of P91 Material By Carbon Steel
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RE: Contamination of P91 Material By Carbon Steel
RE: Contamination of P91 Material By Carbon Steel
RE: Contamination of P91 Material By Carbon Steel
What sort of microstructural changes have you detected? If you completed a hardness traverse and plastic film replication and found ferrite instead of martensite, then it is not carbon contamination, but fabricator education that is the root cause.
RE: Contamination of P91 Material By Carbon Steel
RE: Contamination of P91 Material By Carbon Steel
RE: Contamination of P91 Material By Carbon Steel
I would be more worried about oxidation/decarb damage in this grade also.
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Rust never sleeps
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