... that induce a cathodic reaction of higher potential, and support the growth of oxide and/or hydroxide surface films. This group of alloys covers a large range of chromium/molybdenum ratios, from N10675 alloy (1.5/28.5) to N06035 alloy (33/8). N10675 alloy excels in pure hydrochloric and sulfuric acid, whereas...

.... The results from potentiodynamic polarization measurements are presented and discussed. The electrochemical measurements are complemented with immersion tests conducted in environments with chlorides. Stainless steels Sulfuric acid Chloride concentration Temperature INTRODUCTION Corrosion is the most...

... was more difficult with the modified DLEPR, as the surfaces were more severely corroded, somewhat masking smaller features such as inclusions and twin boundaries. Corrosion monitoring Corrosion tests Stainless steels Test methods Electrochemistry Sulfuric acid INTRODUCTION The castings were plates...

...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...

... 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...

...Upon completion of the previous characterization study and testing, the full requirements of the system were met, and the system was introduced commercially with multiple successful repairs. It was soon requested that the material be able to withstand the sulfuric acid at an even higher temperature...

... 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...

... FGD (wet flue gas desulfurization) duplex stainless steel super-austenitic stainless steel nickel alloy pitting chlorides air pollution control crevice corrosion UNS S31277 UNS N08926 UNS N10276 UNS S31603 UNS S31803 UNS S32750 halides sulfuric acid wallpaper cladding repair GTAW...

... 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...

... cargo hold and laboratory corrosion test using coal, it was concluded that dilute sulfuric acid derived from sulfur in coal caused that severe corrosion. New corrosion resistant steel for the coal carrier cargo hold was developed and its performance was investigated. As the result of laboratory...

...Abstract The aim of this research focused on obtaining an understanding of the role of chromium in a binary iron aluminides in aqueous environments, i.e. 0.25 M sulfuric acid. Using a binary Fe-26Al and X8 CrNiS 18-9 alloy for comparison purposes, electrochemical potentiodynamic polarization...

...Abstract In Sulfur Recovery Units (SRU), the piping transporting various gas streams to the incinerator can experience severe corrosion and plugging due to condensation of sulfur, water and/or sulfuric acid. Case histories of these problems have occurred even in lines with properly-designed steam...

... The sulfuric acid alkylation process chemically combines isobutane with a low octane olefin (usually a mixture of propylene and butylene) in the presence of sulfuric acid catalyst to yield higher octane alkylate product used in blending gasoline pool. Corrosion is primarily driven by sulfuric acid and esters...

...The new alloy with which this paper is concerned was designed to satisfy the need for higher resistance to hydrochloric and sulfuric acids, without the drawbacks associated with the Ni-Mo and Zr materials; it also exhibits exceptional resistance to chloride-induced pitting, crevice attack...

...Nickel and iron-nickel alloys with contents of chromium and molybdenum offer resistance to corrosion in reducing acids such as hydrochloric and dilute sulfuric acids. In general, the resistance of alloys may be ranked by their content of molybdenum, alloys with higher molybdenum offer greater...

... composite epoxy gasoline acid resistance sodium hydroxide toluele diethanolamine sulfuric acid hydrochloric acid INTRODUCTION When selecting a field repair system to restore the integrity of an operational piping system, the asset owner has multiple repair options to select from. The traditional...