...), while titanium alloys appeared more resistant to EAC. Geothermal environmentally assisted cracking (EAC) corrosion high temperatures hydrochloric acid low pH INTRODUCTION The corrosion aggressiveness of geothermal fluids depends on the chemical composition and physical characteristics of the fluid...

..., aqueous solutions. Molybdenum ennobles nickel, and greatly enhances its resistance to so-called reducing solutions, which include the key industrial chemical, hydrochloric acid. Reducing solutions are those which induce a cathodic reaction that results in hydrogen evolution. Oxidizing solutions are those...

...Ni-Cr-Mo alloy Uns N06058 2.4700 matching filler metal corrosion resistance mechanical properties welding explosion cladding ISO corrosion diagram sulfuric acid hydrochloric acid mixture acid Abstract The high performance alloy UNS N06058 contains about 21 wt.-% chromium and at least...

..., hydrochloric acid and highly concentrated brines. Often these fluids will be recirculated in a closed loop system, consistently re-exposing equipment to potentially damaging conditions. Frequently, these challenging conditions faced are tested individually with pressurized mass loss coupon testing at bottom...

... aggressive. The studied materials UNS S32205, N08904 and N08825 have been selected due to their relatively similar compositions, except the increasing nickel content in each material. stainless steel nickel base uniform corrosion sulfuric acid hydrochloric acid Samples were prepared in size 60x30x3 mm...

... resistance than the existing nickel and iron-based alloys. Nickel Alloys Stainless Steel Hydrochloric Acid Sulfuric Acid Nitric Acid Mixed Acids Oxidants Iso-Corrosion Curve Electrochemical Techniques INTRODUCTION The choice of materials for applications in concentrated acids at ambient or higher...

... elements such as Cr, Ni, and Mo in austenite and delta-ferrite phases in order to understand the preferential corrosion in the austenitic stainless steel weld metal. SUMMARY and CONCLUSIONS The mechanism of preferential weld metal corrosion on UNS S31600 austenitic stainless steel in hydrochloric acid...

... of sensitization on the uniform and localized corrosion resistance performance of the alloys, the heat-treated specimens were tested in various acidic solutions, like hydrochloric acid (HCl), sulfuric acid (H₂SO₄), nitric acid (HNO₃) and acidified ferric chloride (ASTM G-48C). Ni...

... respectively, the corrosion rates of AM S31603 and AM N06210 became higher with increasing porosity of each specimen. Additive manufacturing Corrosion Localized corrosion N06210 S31603 Sulfuric acid Hydrochloric acid hydrofluoric acid INTRODUCTION Additive manufacturing (AM) is a method to manufacture...

... containing Cr-Ni-Mo-W-Co ingredients were produced by hot isostatic pressing (HIP) method and their corrosion behavior in hydrochloric acid was investigated using potentiodynamic polarization (PDP) curves, electrochemical impedance spectroscopy (EIS) measurements and immersion corrosion tests. Post-test...

... of damage. For example, acidic mixtures containing hydrofluoric (HF) acid are commonly used where sandstone is prevalent; hydrochloric acid (HCl)-containing acids work well in carbonate formations. Combinations of HF and HCl, along with organic acids like acetic and formic acid are also used, depending upon...

... show relatively much higher corrosion rates when exposed to higher concentrated HCl solutions at higher temperatures. Nickel alloys hydrochloric acid heat treated mill annealed iso-corrosion lines INTRODUCTION Hydrochloric (HCl) acid is a colorless liquid and very corrosive in nature...

... stainless steel controls. nanocoating silicon chemical vapor deposition CVD coating corrosion resistant stainless steel hydrochloric acid sulfuric acid H₂S, hydrophobic INTRODUCTION Corrosion costs over $450 billion annually in the United States alone. The global cost of corrosion...

...Corrosion properties of N06044 under several conditions in various acids Sulfuric acid and hydrochloric acid solutions The other acidic solutions and alkaline solutions Table 4 shows corrosion rates of N06044 in hydrofluoric acids, nitric acids, phosphoric acids, the acid mixtures and sodium...

...Ni-Cr-Mo Alloys Ni-Cr-Mo-W Alloys Stainless Steel Hydrochloric Acid Sulfuric Acid Nitric Acid Mixed Acids Iso-Corrosion Curve Potentiodynamic Polarization Technique INTRODUCTION Sulfuric acid (H₂SO₄), hydrochloric acid (HCl) and nitric acid (HNO₃) are among...

...Flowing fluid loop carbon steel hydrochloric acid inhibitors EIS INTRODUCTION The corrosion testing system is scientifically and practically critical for corrosion testing and simulations. The relative motion between the metal and aggressive medium occur in most cases of corrosion...

...Introduction Hydrochloric acid (HCl) is an important mineral acid, second only to sulfuric acid (H₂SO₄) in its uses in industry. Major applications include acid pickling of steel, acid treatment of oil wells, chemical cleaning and processing, ore reduction, production...

... the acidizing fluids are injected. In this paper, the corrosion inhibition of polymerizable organic corrosion inhibitors for a coiled tubing low carbon steel, medium carbon steel, high alloy (UNS S42000) and Duplex (UNS S32205) casing steels in 4M hydrochloric acid solution at 80°C was investigated by weight...

... and cathodic processes. Surface morphological changes of the specimen immersed in blank solution and inhibiting solution were observed using scanning electron microscope. RESULTS corrosion inhibitors carbon steel aluminum hydrochloric acid EIS SEM INTRODUCTION Chemical inhibition is an effective...

... behavior of their welds and heat-affected zones (HAZ), in effect the weak links in any welded structure. In this study, welds and heat-affected samples of a relatively new nickel alloy, containing 22% molybdenum and 15% chromium, were tested in hydrochloric acid, sulfuric acid, nitric acid, and ferric...