Stress Corrosion Cracking Evaluation of High Alloy Steel (X2CrNiMoN 22-5-3) by DET

• Autorzy: Lasek S. , Blahetová M. , Číhal V.
• Konferencja: Metody oceny struktury oraz własności materiałów i wyrobów / Międzynarodowe Sympozjum (XIX ; 30.11.-02.12.2004 ; Rožnov pod Radhoštěm, Czechy)
• Języki publikacji: EN

Abstrakty

EN

Stress corrosion cracking (SCC) can cause a dangerous failure of structural parts under specific combination of material, environment and loading. For testing of the resistance to SCC at higher temperatures (100-300°C) in water environments were proposed several methods. The Drop Evaporation Test (DET) is useful for comparison and evaluation of resistance of stainless steels and related alloys to SCC in chlorides containing water environments [1,2]. This test is valid in the cases, when evaporation of water environments can increase the content of anions (Cl-) and there is also possibility to form a salt deposition as a crevice on material surface. The advantage of DET is possibility of testing at higher temperature in the range 100~500°C using a lower Cl- water content (0-100 ppm) in convenient gas around the specimen. During DET there is a good possibility to observe a sample surface, initiation and propagation of pitting and corrosion cracking [3]. The process of thermal and corrosion fatigue is superposed on SCC mainly in the stage of initiation and propagation of short cracks especially in case of a higher difference of temperature between drops and heated sample. The DET simulates also the influence of heat transfer from material into environment on localized corrosion under evaporating conditions. The aim of this contribution is the study of short corrosion cracks growth on duplex steel of type X2CrNiMoN 22-5-3 (1.4462) under DET conditions by travelling microscope method.

Słowa kluczowe

EN

stress corrosion cracking (SCC); alloyed steel; DET

• Wydawca: Oficyna Wydawnicza Politechniki Opolskiej
• Czasopismo: Zeszyty Naukowe. Mechanika / Politechnika Opolska
• Rocznik: 2004
• Tom: z. 78
• Strony: 17--22
• Opis fizyczny: Bibliogr. 4 poz., rys., wykr.

Twórcy

autor

Lasek S.

• VŠB - Technical university of Ostrava

autor

Blahetová M.

autor

Číhal V.

Bibliografia

• [1] ARNVIG, P. E., WASIELEWSKA, W.: Stress corrosion behaviour of highly alloyed stainless steels under severe evaporative condition. Acorn -Avesta Sheffield corrosion management, 1993, No. 3, p.1-7.
• [2] ISO/DIS 15324: Corrosion of metals and alloys - Evaluation of stress corrosion cracking by the drop evaporation test, 1999,10 p.
• [3] LASEK, S., CÍHAL, V., BLAHETOVÁ, M.: Stress corrosion cracking study of austenitic stainless steels by the drop evaporation test, Proc. 14-th ECF, 2002, Krakow, CD.
• [4] CÍHAL, V., LASEK, S., BLAHETOVÁ, M.: Drop evaporation test for stress corrosion cracking study, European Congress EUROCORR 2003, Budapest, 9 p. CD.