Wednesday, August 29, 2018

[MW:28232] sample preparation of ASTM G28

Dear All.

Does anybody have any experiences or instruction for preparation of sample for G28?is there any requirement to remove clad material from surface and go through it or not?
this question arises from this point that IGC comes from carbide & inter metallics that mostly possible in diluted area and also accepted corrosion rate is about 0.9 mm/year for 625. Now is it reasonable to prepare sample from interface or without removing of thickness and take it from surface?

Regards.  

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