What is it about?
the thiocyanate anion may cause Intergranular stress corrosion cracking on sensitized stainless steels.
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Why is it important?
In the present work, the susceptibility to IGSCC of type 304 SS in NaSCN solutions was studied. Results were compared with those obtained with Na2S2O3 and Na2S4O6 solutions tested under similar conditions
Perspectives
These results show that the thiocyanate anion is less aggressive than other metastable sulfur-containing anions and its aggressiveness is not merely related to sulfur content.
Dr Patricia M Perillo
Comision Nacional de Energia Atomica
Read the Original
This page is a summary of: Stress Corrosion Cracking of Sensitized Type 304 Stainless Steel in Thiocyanate Solutions, CORROSION, July 1990, NACE International,
DOI: 10.5006/1.3585146.
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