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ÖNORM EN ISO 12732
Corrosion of metals and alloys - Electrochemical potentiokinetic reactivation measurement using the double loop method (based on Cihal´s method) (ISO 12732:2006)
Translate name
STANDARD published on 1.8.2008
The information about the standard:
Designation standards: ÖNORM EN ISO 12732
Publication date standards: 1.8.2008
SKU: NS-774304
The number of pages: 18
Approximate weight : 54 g (0.12 lbs)
Country: Austrian technische Norm
Category: Technical standards ÖNORM
The category - similar standards:
Annotation of standard text ÖNORM EN ISO 12732 :
This standard specifies the method for measuring the degree of sensitization (DOS) in stainless steel and nickel-based alloys using the Double Loop Electrochemical Potentiokinetic Reactivation (DL-EPR) test (based on Čihals method). The method may be used for the quantitative assessment of deleterious thermal effects resulting in the formation of alloy-element-depleted zones at grain boundaries or in the matrix. However, attention should be paid when testing heat-affected weld zones, due to possible non-uniform distribution of sensitized zones along the fusion lines. The results of the test can be used as an index to identify the potential susceptibility of stainless steel and nickel-based alloys to intergranular corrosion, pitting corrosion, and intergranular-stress corrosion cracking, but prediction of these corrosion modes depends on complementary specific testing. This standard describes the general methodology and, in Annex C, gives examples of suitable test exposure conditions for specific alloys.
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