Evaluation of Thiosulfate as a Substitute of Hydrogen Sulfide in Sour Corrosion Fatigue Studies

Abstract

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The Influence of Rotating Cage Geometry and Baffles on the Wall Shear Stress Equation in Sweet/Sour Corrosion

“…Several authors report the influence of the material microstructure on the corrosion rate and the precipitation of corrosion products on the surface 40,41 . According to the literature 40,[42][43][44][45][46] , cementite presents a more positive potential than the ferritic phase. This fact generates a micro galvanic couple between the Fe 3 C grains (cathodic side), and the ferrite (α-Fe) grains (anodic side), and promotes a preferential dissolution of α-Fe.…”

Effect of thiosulphate/H2S on crevice corrosion behaviour of P110 carbon steel in CO2-saturated solution

“…Further, it was also reported the acid solutions containing 10 −4 mol L −1 , 10 −3 mol L −1 , and 10 −2 mol L −1 thiosulphate can be used to simulate continuous bubbling H 2 S/N 2 gas mixtures to obtain the equivalent partial pressures of H 2 S at 0.029, 0.56 and 1.5 kPa, respectively [35,36]. In the concentration range of 0-10 −2 mol L −1 , the corrosion rate increases with the increase of thiosulphate concentration [32]. However, further increasing the concentration of thiosulphate to more than 10 −2 mol L −1 reduced the generation rate of H 2 S due to the formation of a thick sulphide film [34][35][36].…”

Hydrogen-enhanced intergranular failure of sulfur-doped nickel grain boundary: In situ electrochemical micro-cantilever bending vs. DFT

“…Therefore, to investigate the effect of H concentration enhancement on the GB embrittlement, 0.002 M Na 2 S 2 O 4 as H recombination poison was added to the charging glycerol-based solution for testing beams containing NiS2 GB. Owing to the poison, the adsorbed and absorbed H concentration in the material increases [93].…”