Effect of sulfate-reducing bacteria on the electrochemical conditions at a crack tip

Autor: V. S. Bodak, N. S. Antonovs'ka, Ya. A. Serednyts'kyi, I. M. Slobodyan, L. V. Ratych
Rok vydání: 1994
Předmět:
Zdroj: Materials Science. 29:507-513
ISSN: 1573-885X
1068-820X
DOI: 10.1007/bf00558773
Popis: We study the effect of sulfate reducing bacteria on the electrochemical conditions at the tips of stationary and growing corrosion fatigue cracks in 40Kh steel specimens in Postgate medium. Sulfate-reducing bacteria change significantly the pH and the electrochemical potential at the crack tip and greatly decrease the efficiency of KXO inhibitor. The effect of sulfate-reducing bacteria and KXO inhibitor on the intensity of local anodic dissolution and hydrogen embrittlement in the vicinity of a corrosion fatigue crack tip is estimated.
Databáze: OpenAIRE