... corrosion pickling passivation potentiodynamic polarization immersion testing INTRODUCTION Austenitic stainless steels are corrosion resistant materials that usually contain 18-20% Cr and 8-10% Ni with austenite being the predominant phase. They are widely used in many industrial applications...

... efficiency of the new synthesize quaternary salts will be evaluated on API 5L X60 low carbon steel in 1 M HCl by electrochemical impedance spectroscopy (EIS), potentiodynamic polarization (PDP) and linear polarization (LPR). Studies will be complemented with surface characterization of the corroded mild...

..., used to calculate corrosion rates. Potentiodynamic polarization curves, including cyclic voltammograms, were used to explain active, active-passive, and passive regions of these alloys and susceptibility to localized corrosion. Surface characterization of the corroded samples were performed using...

... of a phosphate ester based inhibitor which creates protection from oxygen corrosion. Potentiodynamic polarization is used to determine the inhibitor behavior during the anodic and cathodic processes of corrosion. A system of a carbon steel electrode in 3.5% NaCl /3% O₂ in 97% CO₂...

... was evaluated by utilizing potentiodynamic polarization technique. Moreover, scanning electron microscopy (SEM) was utilized to assess the morphology of the corrosion products on the steel. Generally, the corrosion rate of steel increased with an increase in the sulfate concentration in chloride-contaminated...

... and defects on samples after corrosion test. diamond like carbon a-C:H:Si DLC nitriding steel grade potentiodynamic polarization All samples have been analyzed with potentiadynamic polarization tests in 5m% NaCl solution and in a salt spraying chamber. Metallographic investigations have been done using...

... in corrosion of base metal below the deposits due to a galvanic corrosion mechanism. underdeposit corrosion zero resistance ammeter potentiodynamic polarization galvanic corrosion INTRODUCTION Underdeposit corrosion is one of the important corrosion problems faced in oil and gas operations. The variety...

... in SFGE can cause pitting and metal loss. Dissolved chlorides and higher acidity promote pit initiation and growth. SFGE with alkaline condition can prevent both localized and uniform corrosion on carbon steel. Pitting corrosion Carbon steel Potentiodynamic polarization Fuel-grade ethanol Ohmic (IR...

... corrosion resistivity compared to steel. air plasma spraying alloy 625 corrosion open circuit potential potentiodynamic polarization INTRODUCTION The need for suitable alloys for service in severe environments has promoted the development of highly corrosion resistant, and heat treatable alloys. Nickel...

... HNO₃; 5M HNO₃ + 0.1M HF; and 5M HNO₃ + 0.1M HF + 0.1M Zr⁴⁺. The three types of corrosion tests used were immersion tests, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). A rotating cylinder was used in a three-electrode cell configuration...

...Medical Implant In Vivo Nitinol Pitting Potentiodynamic Polarization Screening INTRODUCTION Nitinol, the nearly equiatomic NiTi superelastic shape memory alloy has found growing usefulness in multiple applications within the medical device industry. The application discussed here involves...

... . Potentiodynamic polarization tests were used to evaluate the relative electrochemical behavior of S32205, S32101 and S32304 in 3.75M NaOH solution at 40°C, 60°C and 90°C. Similar tests were also conducted on the duplex stainless steel specimens in sulfide-containing caustic solution or synthetic white liquor...

...). Potentiodynamic Polarization in High Conductivity, Low Corrosivity Electrolyte The first round of electrochemical tests was conducted in a standard aqueous high-conductivity nearly neutral pH buffered borate solution. The solution was used at ambient temperature and aeration. Roughly 500-600 mL of fresh solution...

... oxidizing conditions. Alloy 242 (N10242) Alloy B-10 (N10624) Alloy B-3 (N10675) alloying elements ferric ions general corrosion hydrochloric acid nickel alloys resistance polarization potentiodynamic polarization pseudo-passivation INTRODUCTION It is now well established that when oxidizing...

... do not yield sufficient knowledge regarding the effect of ferric ions on their corrosion behavior. Standard polarization resistance and potentiodynamic polarization test methods were used. The results clearly showed that the electrochemical behavior of the two alloys was drastically affected...

...Yucca Mountain waste package localized corrosion crevice corrosion Alloy 22 repassivation potential potentiodynamic polarization thermodynamic speciation INTRODUCTION In the United States, the U.S. Department of Energy (DOE) is responsible for the design and construction of a geological...

..., succinic acid, nitrobenzoic acid, phthalic acid and maleic acid and evaluated their inhibiting action on corrosion of mild steel, copper, brass, zinc and aluminium by weight loss and potentiodynamic polarization methods. All the investigated VCIs exhibited good inhibition efficiency for all the metals...

.... A series of potentiodynamic polarization experiments, Devanathan/Stachurski type hydrogen permeation experiments, and cyclic loading tests were performed with varying levels of O₂ and CO₂. Tests revealed that increasing the level of CO₂ increased the corrosion rate...

... auger microprobe (SAM) stainless steel potentiodynamic polarization potentiostatic polarization INTRODUCTION (1) Current address: ALCOA Technical Center, 100 Technical Drive, ALCOA Center, PA 15069. Materials Type 304 ss strips cut into 10x10x1 mm coupons were annealed at 1080°C for 1 hour...

...) reduction of molybdate potentiodynamic polarization INTRODUCTION As the importance of biofilms in microbiologically influenced corrosion (MIC) is increasingly understood, the interactions between bacterial exopolymers and metal substrates have received considerable interest from both microbiologists...