... of environmental-assisted cracking. Low Alloy Steel H₂S Trenches Stress-Induced Grooves Elongated Pits Cracks Sulfide Stress Cracking NACE TM0177 Sour Service Environmental Assisted Cracking INTRODUCTION The presence of trenches on low alloy steels (LAS) in sour environments at the open...

...Abstract A physics-based model has been developed to improve the fundamental understanding of the active chemistry of metal and alloy surfaces that are exposed during aggressive pitting or the growth of an environmentally assisted crack in media containing chlorides and sulfides. In such cases...

... exposed surfaces, which could in turn affect the conditions in a crevice or crack. Environmental assisted cracking experiments were also performed with a galvanically coupled crevice-former over the initiation site. Crack growth rate and corrosion current between the crevice former and the sample were...

... environmental assisted cracking INTRODUCTION Carbon and low alloy steels (CS and LAS, respectively) used for exploration and production in the oil and gas (O&G) industry are normally exposed to environments that may contain H₂S in a wide range of concentrations. In aqueous solutions...