...Abstract In the oil and gas industry, pipelines are exposed to wet H₂S environments (sour environments) that cause sulfide stress cracking (SSC) in low-alloy carbon steels in some cases. Recently, a judgment flowchart was proposed to determine the SSC susceptibility based...

... for sour performance evaluation. hydrogen embrittlement fracture toughness WOL DCB gaseous hydrogen sour environment INTRODUCTION The fracture toughness of steels for pressure vessel applications is one of the most important properties that determines the fitness for service of the component...

... is the underground drain piping system of oil and gas facilities. Similar to other types of materials, GREs are imposing some limitations especially when used in high critical sour environments. This includes the qualification of GRE material in environment that have H2S mole fraction as high as 23.51 mol% in which...

... with FEA. Additionally, the second tested sample successfully passed the test. Full ring ovalization test testing variables sour environment welded pipes INTRODUCTION Carbon and low alloy steels (CS and LAS, respectively) used for exploration and production in the oil and gas (O&G) industry...

..., significantly lower corrosion rates were measured when using H₂S gas than with sodium sulfide. Moreover, microscopy showed pitting when sulfide was introduced as the salt, but pitting was absent when the sour environment was generated by H₂S gas. Supportive work on other systems has shown...

...Abstract Sulfide stress cracking (SSC) occurs in steel exposed to sour environments. Ni promotes the formation of a crack-like corrosion morphology (so-called stress groove or fissure), which accelerates the SSC; however, the mechanisms underlying fissure formation and growth are not fully...

...Abstract The Sulfide Stress Cracking evaluation based on Four Point Bend Test specimens (FPBT-SSC) is widely used to assess Line Pipes performance on sour environments. An important stage of the test configuration is to determine the strain corresponding to the desired load (e.g., 90% AYS...

...Abstract Hydrogen embrittlement, such as sulfide stress cracking, occurs in low-alloy carbon steels under sour environments. The amount of absorbed hydrogen increases with increasing plastic strain introduced into the steel materials. The susceptibility to hydrogen embrittlement increases...

...As a result of optimization of the steel composition and Thermo-Mechanical Controlled Processing (TMCP) in the plate production process, linepipes up to API5L-X65 grade have been widely used in sour environments. More recently, the sour resistance property under mildly sour conditions has also been...

... analysis based on the existent state of the passive films. Martensitic Stainless Steels Sour environment Corrosion mechanisms Molybdenum Thin films Electrochemistry INTRODUCTION Oil and gas wells are highly corrosive environments because they contain H₂S and CO₂. The 13Cr...

... the starting point as in the case of cleavage fracture in body-centered cubic (bcc) iron at low temperatures. Recently, sour environmental severity for HIC susceptibility was proposed based on the equi-hydrogen permeability concept. ^{11 - 13} Previously, several researchers had investigated...