Microbiologically Induced Corrosion of X80 Pipeline Steel in a Near-Neutral pH Soil Solution
نویسندگان
چکیده
منابع مشابه
Stress- Corrosion Crack Initiation of High-strength Pipeline Steel in Near-neutral pH Environments
Stress-corrosion cracking (SCC) tests were conducted in the near-neutral pH standard solution, NS4, and in an actual soil solution, using four-point bending at a high stress ratio and low frequency conditions very similar to those of operational pipelines. Pitting incubation appeared first and then pitting initiated and grew in both solutions although there were many more pits on the specimen t...
متن کاملstress- corrosion crack initiation of high-strength pipeline steel in near-neutral ph environments
stress-corrosion cracking (scc) tests were conducted in the near-neutral ph standard solution, ns4, and in an actual soil solution, using four-point bending at a high stress ratio and low frequency conditions very similar to those of operational pipelines. pitting incubation appeared first and then pitting initiated and grew in both solutions although there were many more pits on the specimen t...
متن کاملRelationship between Dissolved Oxygen and Corrosion Characterization of X80 Steel in Acidic Soil Simulated Solution
The relationship between dissolved oxygen (DO) and corrosion behavior of X80 steel in acidic soil simulated solution was studied by potentiodynamic polarization curves, electrochemical impedance spectroscopy (EIS), scanning Kelvin probe technique (SKP) and X-ray diffraction (XRD). Results showed that the presence of DO accelerated the cathodic process of corrosion for X80 steel in the acidic so...
متن کاملMicrobiologically induced corrosion of copper pipes in low-pH water
The aim of this paper was to study the influence of microbial biofilms on the high copper levels measured in the drinking water of rural houses. Drinking water parameters and copper pipe surfaces were analysed in the copper plumbing systems of rural and urban houses. The water in rural houses had pH values of 6.2 and alkalinity values of 63mg/L as CaCO3, whereas in urban houses the pH values we...
متن کاملEffect of Alternating Current on the Cathodic Protection and Interface Structure of X80 Steel
This study employs potential-monitoring techniques, cyclic voltammetry tests, alternating current (AC) voltammetry methods, and surface characterization to investigate the AC corrosion of cathodically protected X80 pipeline steel. In a non-passive neutral solution at pH 7.2, a sufficiently negative potential completely protects steel at an AC current density of 100 A/m². In an alkaline solution...
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ژورنال
عنوان ژورنال: Acta Metallurgica Sinica (English Letters)
سال: 2014
ISSN: 1006-7191,2194-1289
DOI: 10.1007/s40195-014-0173-9