Hydrogen blistering, hydrogen‐induced plasticity loss (HIPL) under slow strain rate test and hydrogen‐induced cracking or fracture (HIC) under constant load for rail steel were evaluated. The threshold diffusible hydrogen concentrations for blistering, HIPL and HIC were 2.03 ppm, 0.26 ppm and 0.24 ppm, respectively. During charging, blistering formed first and fissure initiated at the wall of the blistering. HIPL (lδ) was found to decrease linearly with the reciprocal of the diffusible hydrogen concentration (C0), i.e. lδ = 105 ‐ 27/C0. The threshold stress for HIC (σc) in MPa decreases linearly with In C0 in ppm i.e., σc = 642 ‐ 284 In C0.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.