Possibility of corrosion monitoring resistance of austenitic steel for ship construction

• Autorzy: Jurczak W. , Jurczak K.

Identyfikatory

DOI

10.5604/12314005.1213542

• Języki publikacji: EN

Abstrakty

EN

The article presents the investigation results on possibility of electrochemical corrosion monitoring of the 1.3964 steel used for ship construction according of the patent Pl 216723. The patent’s assumption describes the method of on-line registration of electrochemical potential specifying the protective effectiveness of a thin oxide layer formed spontaneously on the steel surface. Essentials drop of the potential’s value with respect to the stationary one indicates layer cracking and initiation of pitting corrosion. Such a corrosion can be initiated by salinity and temperature of seawater and/or by a mechanical factor (strain). The carried out measurements of the potential and mechanical-electrochemical teats made it possible to determine the stress level causing the crack of oxide layer and initiation of corrosion processes in the steel. Thereby, the mechanical properties (Rm and A5) thin passive oxide layers investigated steel. Application of Electrochemical Impedance Spectroscopy (EIS) in the laboratory allows monitoring of weakness (stratification) of the film as a stage preceding to fracture [1, 2]. Stress cracking of the protective oxide layer on the 1.3964 steel takes place beyond the exploitation zone (above the tensile strength) and there is no indication to monitor the corrosion resistance on ship construction made of this stainless steel. However, in specific cases when temperature of the steel exceeds 40oC, application of the monitoring may be justified.

Słowa kluczowe

EN

electrochemical corrosion; austenitic steel; monitoring

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2016
• Tom: Vol. 23, No. 1
• Strony: 131--138
• Opis fizyczny: Bibliogr. 11 poz., rys.

Twórcy

autor

Jurczak W.

• Polish Naval Academy Smidowicza 69 Street, 81-127 Gdynia, Poland tel.: [phone], fax: [phone]

autor

Jurczak K.

• Polish Naval Academy Smidowicza 69 Street, 81-127 Gdynia, Poland tel.: [phone], fax: [phone]

Bibliografia

• [1] ASTMG61-86, Standard Test Method for Conducting Cyclic Potentiodynamic PolarizationMeasurements for Localized Corrosion Susceptibility of Iron-, Nickel- or Cobalt-Based Alloys, Philadelphia, PA, American Society for Testing and Materials, 1998.
• [2] Atest hutniczy stali 1.3964, 2014.
• [3] Bodzak, K., Korozja okrętów, Zeszyty Naukowe AMW, 2000.
• [4] Cudny, K., Puchaczewski N., Stale i stopy aluminiowe stosowane na kadłuby okrętowe, Wydawnictwo „MarPress”, Gdańsk 1996.
• [5] Darowicki, K, Orlikowski, J., Arutunow, A, Jurczak, W., The effect of strain rate on the passive layer cracking of 304L stainless steel in chlorides solution based on the differential analysis of electrochemical parameters obtained by means of DEIS, Journal of Electroanalyt Chemistry, Vol. 576, No. 2005 pp. 277-286, 2005.
• [6] http://www.gospodarkamorska.pl/ogloszenia/zapytanie-ofertowe-obrobka-i prefabrykacja-stali-nierdzewnej-austenitycznej-adv37699.html.
• [7] Jastrzębski, T., Puchaczewski, N., Stale do budowy kadłubów okrętowych i obiektów oceanotechnicznych, Szczecin 1990.
• [8] Jurczak, W., Diagnostics of corrosion degradation of light marine structures, Diagnostyka, Vol.1 (61) pp. 19-24, 2012.
• [9] Praca zbiorowa, Ochrona elektrochemiczna przed korozją, WNT, Warszawa 1991.
• [10] PN-EN 10088-1:2007, Stale odporne na korozję, Część 1: Gatunki stali odpornych na korozję, 2007.
• [11] Rowiński, L., Pojazdy głębinowe budowa i wyposażenie, Gdansk 2008.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.