Effect of steel microstructure on bacteria-assisted hydrogen effects at cathodic polarization in sea water

• Autorzy: Łunarska, E. , Domżalicki, P. , Birn, J.
• Języki publikacji: EN

Abstrakty

EN

The effect of the SRB action on mechanical properties and hydrogen uptake by the steels of quite similar chemical composition but different microstructure bas been studied at cathodic polarization in synthetic sea water. Susceptibility of sorbite steel to the SRB action, as seen from the plasticity los s and hydrogen uptake was higher than that of ferrite-pearlite steels. The sorbite steel revealed also the highest polarization current, highest amount of S.2 in solution and the highest amount of S on the surface of metal tested in the presence of SRB. The made pronounced detrimental effect of SRB produced on sorbite steel was mostly accounted for the presence of Mn, Fe sulfides in the steel microstructure.

Słowa kluczowe

EN

SRB; synhetic sea water; ferrite; pearlite; sorbite; hydrogen uptake; sulfide inclusions

• Czasopismo: Advances in Materials Science
• Rocznik: 2007
• Tom: Vol. 7, nr 1(11)
• Strony: 160-165
• Opis fizyczny: Bibliogr. 7 poz., rys., tab.

Twórcy

autor

Łunarska, E.

autor

Domżalicki, P.

autor

Birn, J.

• Institute of Physical Chemistry, Polish Academy of Sciences, Warsaw, Poland

Bibliografia

• [1] Robinson M.J., Kilgallon P.J. A Review of the effects of sulphate reducing bacteria in the marine envitronment on the corrosion fatigue and hydrogen embrittlement of high strength steels, OTH 55, Marine Technology Centre, Cranfield University, UK,1998
• [2] Domzalicki P., Lunarska E., Bim J.: Effect of bacteria on hydrogen charging of steel at cathodic protection in sea water. Intern J. Physico-chemical Mechanics of Materials, 39, (2004), pp. 355-369
• [3] Lunarska E., Birn J., Domżalicki P.:Hydrogen uptake by structural steels at cathodic protection in sea water inoculated with sulfate reducing bacteria. Werkstoffe & Korrosion (2007) in press
• [4] Domzalicki P., Lunaska E., Bim L: Effects of cathodic polarization and sulfate reducing bacteria on mechanical properties of different steels in synthetic sea water Werkstoffe & Korrosion (2007) in press
• [5] Domzalicki P.: Ph.D.Thesis. Gdańsk, Technical University. 1999.
• [6] Domżalicki P.: Badania wpływu polaryzacji katodowej w obecności mikroorganizmów na absorpcję wodoru i własności mechaniczne stali okrętowych w wodzie morskiej. Report on KBN grant 8 T12C 029 21, Ship Design and Research Centre, Gdansk (2001)
• [7] Szaklarska-Smialowska Z., Łunarska E.: The effect sulfide inc1usions on the susceptibility of steels to pitting, stress corrosion cracking and hydrogen embrittlement. Werkstoffe und Korrosion. 32 1981, pp. 478-485.