...Corrosion resistant alloys acid corrosion salts nickel-base alloys electrochemical modeling chemical processes environments localized corrosion INTRODUCTION Abstract Corrosion-resistant alloys (CRAs) are often employed in aggressive environments including pure acids as well...

... to the production of intermediate aluminum compounds or by the fast consumption of hydroxyl ions (OH^-) produced by the cathodic reaction on the steel surface. galvanic couples modeling aluminum alloys aluminum hydrolysis acid corrosion INTRODUCTION With a vast demand for solutions for decreasing...

... Material selection in refinery and chemical industry is often challenging and several aspects needs to be taken into consideration, such as mechanical properties, maximum application temperature, pitting corrosion resistance, acid corrosion resistance, and weldability. Commonly used stainless steels often...

... and inhibitive ions on passive dissolution. The paper presents the available experimental data and provides a modeling framework to predict the observations. Acid corrosion stainless steels nickel-base alloys electrochemical modeling INTRODUCTION Abundant data for metals in various single-component chemicals...

... hydrolyzes to produce hydrogen ions which cause acidic corrosion of iron and copper alloy surfaces. Carbonic acid corrosion most often manifests itself as general metal loss rather than highly localized corrosion such as oxygen pitting. Typical corrosion patterns include thinning or grooving of the lower...

... to determine the corrosion resistance and transpassive potential for the steel grades. The influences of chemical composition and phase structure on the corrosion resistance are discussed in this paper. Stainless steel Polarization Acid corrosion INTRODUCTION Nitric acid (NA) is produced by the oxidation...

.... Schiff base acid corrosion electrochemical impedance spectroscopy polarization INTRODUCTION Acid solutions are used for the removal of undesirable scale &rust in many industrial processes. The use of inhibitors is one of the most practical methods to protect against excessive corrosion,especially...

.... It is found that the system follows a Langmuir adsorption isotherm. Nanomagnetic fluid acid corrosion polarization INTRODUCTION Acid solutions are widely used in industry, some of the important fields of application being acid picking of iron and steel, chemical cleaning, oreproduction,and oil well...

... with the increase in the nanomagnetic fluid concentration and reaches the maximum at the optimum concentration. This is further confirmed by the decrease in the corrosion rate. It is found that the system follows a Langmuir adsorption isotherm. nanomagnetic fluid acid corrosion polarization INTRODUCTION...

... investigation was to synthesize and evaluate a novel Schiff base CQA and its performance as acid corrosion inhibitor for mild steel in 1M HCl by weight loss, polarization and electrochemical impedance spectroscopy. The AC impedance measurement was made in the frequency range of 0.1Hz to 1000Hz. The AC signal...

.... It is found that the system follows Temkin adsorption isotherm. nanomagnetic fluid acid corrosion polarization INTRODUCTION Acid Solution are widely used in industry the most important areas of application are acid pickling, acid cleaning, descaling and oil well cleaning. ¹ Corrosion inhibitors...

... confirmed by the decrease in corrosion rate. It is found that the system follows Langmuir adsorption isotherm. Schiff base Acid corrosion Electrochemical impedance spectroscopy Polarization INTRODUCTION Acid solutions are widely used for the removal of undesirable scale and rust in many industrial...

... with the increase in the nanomagnetic fluid concentration and reaches the maximum at the optimum concentration. This is further confirmed by the decrease in the corrosion rate. It is found that the system follows a Langmuir adsorption isotherm. nanomagnetic fluid acid corrosion polarization Polarization...

... environment of sulfuric acid plus sodium chloride is discussed in detail. Unusual features of corrosion in this mixed environment are explored. UNS N06110 Acid Corrosion Chloride Corrosion INTRODUCTION Nickel alloys are able to contain greater concentrations of performance enhancing alloying additions...

... potential to alloy composition. The combined predictive methodology has been validated by calculating the critical crevice temperature for a number of nickel-base alloys. Localized corrosion acid corrosion repassivation potential corrosion potential critical crevice temperature modeling INTRODUCTION...

... from the case study. A critical issue was designing a fluid system and a placement method that achieved the required penetration and placement over the target interval while maintaining acceptable corrosion inhibition. Acid Stimulation Acid Corrosion Corrosion Inhibition Corrosion Test Procedures...

... be provided to reduce the potential effects of the total chemical/fluid system. This paper focuses on the last four years of an aggressive product development for acid corrosion inhibition and application. Product improvements were achieved by eliminating restricted chemicals, decreasing product toxicity...

... oxidation carburization sulfidation chloridation hydrogen interactions hot corrosion dewpoint corrosion acid corrosion galvanic corrosion crevice corrosion pitting corrosion impingement erosion-corrosion liquid metal embrittlement aging reactions sensitization creep damage fatigue...

... an effective method to prevent hydrogen damage in iron oxide cleaning processes. Acid corrosion chemical cleaning citric acid diethylthiourea dodecyl pyridinium chloride hydrochloric acid hydrogen hydroxyethylidene diphosphonic acid inhibitor IR spectroscopy mild steel permeation rust removal...

...(1) Fe + 2 H 2 O ↔ Fe + 2 + 2 OH − + H 2 ↑ (2) Fe + 2 + 2 OH − ↔ Fe ( OH ) 2 ↓ Abstract Corrosion mechanisms remain a major cause of tube failures in operating boiler units. Conditions resulting in caustic corrosion, acid corrosion...