Austenitic stainless steel (A182-F316L) - Relationship between grain size and corrosion.

[Sawryo]

Dear sir,

In case A182-F316L, Is grain size related to corrosion?

Best regards

[Vinay Thattey]

Dear Swaryo ; 

I m not an expert in this subject .  

But it is known that  Intergranular corrosion of austenitic stainless steels is a   problem during welding and high temperature use. One of the major reasons for such intergranular corrosion is so-called sensitization, i.e. chromium depletion due to chromium carbide precipitation at grain boundaries.  Thus grain and grain boundaries definitely play a role in corrosion behavior. Literature ans studies shows that chromcarbide precipitation ,corrosion etc   depend on the crystallographic nature and atomic structure of the grain boundary .

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[Kannayeram Gnanapandithan]

no

THANKS & BEST REGARDS,

KG.PANDITHAN, BE, IWE,  CSWIP 3.1,

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CONSULTANT-WELDING & QUALITY

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[George Dilintas]

No in this case 

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