{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,10]],"date-time":"2026-09-10T14:21:38Z","timestamp":1789050098117,"version":"build-2803163510"},"reference-count":73,"publisher":"MDPI AG","issue":"23","license":[{"start":{"date-parts":[[2021,12,4]],"date-time":"2021-12-04T00:00:00Z","timestamp":1638576000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>An electrochemical study of stress corrosion cracking (SCC) of API X70 steel in a simulated soil solution at different pH values (3, 8 and 10) was carried out. The stress conditions were implemented by slow strain rate stress test (SSRT) and the SCC process was simultaneously monitored by electrochemical impedance spectroscopy (EIS). Fracture surface analysis and corrosion product analysis were performed by scanning electron microscopy (SEM) and X-ray diffraction (XRD), respectively. The results show that the susceptibility to SCC was higher as the pH decreases. In the acid solution, hydrogen evolution can occur by H+ and H2CO3 reduction, and more atomic hydrogen can diffuse into the steel, producing embrittlement. EIS results indicated that the anodic dissolution contributed to SCC process by reducing the charge transfer resistances during the SSRT test. While SEM micrographs shown a general corrosion morphology on the longitudinal surface of samples. At higher pH (pH 8 and pH 10), the SCC susceptibility was lower, which it is attributed to the presence of corrosion products film, which could have limited the process. Using the angle phase (\u03c6) value it was determined that the cracking process started at a point close to the yield strength (YS).<\/jats:p>","DOI":"10.3390\/ma14237445","type":"journal-article","created":{"date-parts":[[2021,12,5]],"date-time":"2021-12-05T21:01:45Z","timestamp":1638738105000},"page":"7445","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Study of SCC of X70 Steel Immersed in Simulated Soil Solution at Different pH by EIS"],"prefix":"10.3390","volume":"14","author":[{"given":"Andres","family":"Carmona-Hernandez","sequence":"first","affiliation":[{"name":"Instituto de Ingenier\u00eda, Campus Veracruz, Universidad Veracruzana, S. S. Juan Pablo II, Zona Universitaria, Veracruz 94294, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1983-2806","authenticated-orcid":false,"given":"Ricardo","family":"Orozco-Cruz","sequence":"additional","affiliation":[{"name":"Instituto de Ingenier\u00eda, Campus Veracruz, Universidad Veracruzana, S. S. Juan Pablo II, Zona Universitaria, Veracruz 94294, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Edgar","family":"Mej\u00eda-Sanchez","sequence":"additional","affiliation":[{"name":"Facultad de Ingenier\u00eda, Campus Ixtaczoquitl\u00e1n, Universidad Veracruzana, KM 1.0 Carretera Sumidero Dos R\u00edos, Veracruz 94452, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Araceli","family":"Espinoza-Vazquez","sequence":"additional","affiliation":[{"name":"Instituto de Ingenier\u00eda, Campus Veracruz, Universidad Veracruzana, S. S. Juan Pablo II, Zona Universitaria, Veracruz 94294, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1229-0546","authenticated-orcid":false,"given":"Antonio","family":"Contreras-Cuevas","sequence":"additional","affiliation":[{"name":"Instituto Mexicano del Petr\u00f3leo, Eje Central L\u00e1zaro C\u00e1rdenas Norte 152, Ciudad de M\u00e9xico 07730, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2889-1135","authenticated-orcid":false,"given":"Ricardo","family":"Galvan-Martinez","sequence":"additional","affiliation":[{"name":"Instituto de Ingenier\u00eda, Campus Veracruz, Universidad Veracruzana, S. S. Juan Pablo II, Zona Universitaria, Veracruz 94294, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2021,12,4]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"213","DOI":"10.1016\/j.corsci.2013.11.031","article-title":"Investigating the mechanism of stress corrosion cracking in near-neutral and high pH environments for API 5L X52 steel","volume":"80","author":"Javidi","year":"2014","journal-title":"Corros. Sci."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"1358","DOI":"10.1007\/s11665-014-0880-4","article-title":"Effect of strength and microstructure on stress corrosion cracking behavior and mechanism of X80 pipeline steel in high pH carbonate\/bicarbonate solution","volume":"23","author":"Zhu","year":"2014","journal-title":"J. Mater. Eng. 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