caa a22 4500 463230655 CHVBK 20180405153241.0 cr unu---uuuuu 170326e20070401xx s 000 0 eng 10.1007/s10853-006-1375-y doi (NATIONALLICENCE)springer-10.1007/s10853-006-1375-y Cheng Y. Department of Mechanical and Manufacturing Engineering, University of Calgary, 2500 University Avenue NW, T2N 1N4, Calgary, AB, Canada aut Thermodynamically modeling the interactions of hydrogen, stress and anodic dissolution at crack-tip during near-neutral pH SCC in pipelines [Elektronische Daten] [Y. Cheng] A thermodynamic model was developed to clarify the interactions of hydrogen, stress and anodic dissolution at crack-tip during near-neutral pH stress corrosion cracking in pipelines by comprehensively considering the electrochemical reactions occurring in the pipeline steel in deoxygenated, near-neutral pH solution. By analyzing the change of the free-energy of steel due to the presence of hydrogen and stress, it is demonstrated that a synergism of hydrogen and stress promotes the cracking of steel. The enhanced hydrogen concentration in the stressed steel significantly accelerates the crack growth. An exact expression of the hydrogen concentration factor, i.e., the dependence of anodic dissolution rate of steel at crack-tip on the hydrogen concentration, is essential at the quantitative prediction of the crack growth rate. Springer Science+Business Media, LLC, 2006 Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/8(2007-04-01), 2701-2705 0022-2461 42:8<2701 2007 42 10853 https://doi.org/10.1007/s10853-006-1375-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-1375-y text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Cheng Y. Department of Mechanical and Manufacturing Engineering, University of Calgary, 2500 University Avenue NW, T2N 1N4, Calgary, AB, Canada aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/8(2007-04-01), 2701-2705 0022-2461 42:8<2701 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer