Effect of SRB and Applied Potential on Stress Corrosion Behavior of X80 Steel in High-pH Soil Simulated Solution
The effect of SRB and applied potential on the stress corrosion sensitivity of X80 pipeline steel was analyzed in high-pH soil simulated solution under different conditions using a slow strain rate tensile test, electrochemical test, and electronic microanalysis. The experimental results showed that...
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| description | The effect of SRB and applied potential on the stress corrosion sensitivity of X80 pipeline steel was analyzed in high-pH soil simulated solution under different conditions using a slow strain rate tensile test, electrochemical test, and electronic microanalysis. The experimental results showed that X80 pipeline steel has a certain degree of SCC sensitivity in high-pH simulated solution, and the crack growth mode was trans-granular stress corrosion cracking. In a sterile environment, the SCC mechanism of X80 steel was a mixture mechanism of anode dissolution and hydrogen embrittlement at −850 mV potential, while X80 steel had the lowest SCC sensitivity due to the weak effect of AD and HE; after Sulfate Reducing Bacteria (SRB) were inoculated, the SCC mechanism of X80 steel was an AD–membrane rupture mechanism at −850 mV potential. The synergistic effect of Cl− and SRB formed an oxygen concentration cell and an acidification microenvironment in the pitting corrosion pit, and this promoted the formation of pitting corrosion which induced crack nucleation, thus significantly improving the SCC sensitivity of X80 steel. The strong cathodic polarization promoted the local corrosion caused by SRB metabolism in the presence of bacteria, whereby the SCC sensitivity in the presence of bacteria was higher than that in sterile conditions under strong cathodic potential. |
| doi_str_mv | 10.3390/ma14226981 |
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The experimental results showed that X80 pipeline steel has a certain degree of SCC sensitivity in high-pH simulated solution, and the crack growth mode was trans-granular stress corrosion cracking. In a sterile environment, the SCC mechanism of X80 steel was a mixture mechanism of anode dissolution and hydrogen embrittlement at −850 mV potential, while X80 steel had the lowest SCC sensitivity due to the weak effect of AD and HE; after Sulfate Reducing Bacteria (SRB) were inoculated, the SCC mechanism of X80 steel was an AD–membrane rupture mechanism at −850 mV potential. The synergistic effect of Cl− and SRB formed an oxygen concentration cell and an acidification microenvironment in the pitting corrosion pit, and this promoted the formation of pitting corrosion which induced crack nucleation, thus significantly improving the SCC sensitivity of X80 steel. The strong cathodic polarization promoted the local corrosion caused by SRB metabolism in the presence of bacteria, whereby the SCC sensitivity in the presence of bacteria was higher than that in sterile conditions under strong cathodic potential.</description><identifier>ISSN: 1996-1944</identifier><identifier>EISSN: 1996-1944</identifier><identifier>DOI: 10.3390/ma14226981</identifier><identifier>PMID: 34832381</identifier><language>eng</language><publisher>Basel: MDPI AG</publisher><subject>Acidification ; Anodic dissolution ; Bacteria ; Cathodic polarization ; Cathodic protection ; Concentration cell corrosion ; Corrosion ; Corrosion effects ; Corrosion mechanisms ; Corrosion potential ; Crack initiation ; Crack propagation ; Dissolution ; Electrode polarization ; Electrodes ; Experiments ; Failure analysis ; Fracture mechanics ; High strength low alloy steels ; Hydrogen ; Hydrogen embrittlement ; Mechanical properties ; Microorganisms ; Nucleation ; Pitting (corrosion) ; Simulation ; Slow strain rate ; Soils ; Steel ; Stress corrosion cracking ; Structural steels ; Sulfate reduction ; Synergistic effect ; Tensile strength ; Tensile tests</subject><ispartof>Materials, 2021-11, Vol.14 (22), p.6981</ispartof><rights>2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2021 by the authors. 2021</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c383t-63db7d6d1717add9703b3ecbb2e89c44a77151080c611dda0b256c63df4ee3a63</citedby><cites>FETCH-LOGICAL-c383t-63db7d6d1717add9703b3ecbb2e89c44a77151080c611dda0b256c63df4ee3a63</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC8621469/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC8621469/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,885,27924,27925,53791,53793</link.rule.ids></links><search><creatorcontrib>Xu, Congmin</creatorcontrib><creatorcontrib>Gao, Haoran</creatorcontrib><creatorcontrib>Zhu, Wensheng</creatorcontrib><creatorcontrib>Wang, Wenyuan</creatorcontrib><creatorcontrib>Sun, Can</creatorcontrib><creatorcontrib>Chen, Yueqing</creatorcontrib><title>Effect of SRB and Applied Potential on Stress Corrosion Behavior of X80 Steel in High-pH Soil Simulated Solution</title><title>Materials</title><description>The effect of SRB and applied potential on the stress corrosion sensitivity of X80 pipeline steel was analyzed in high-pH soil simulated solution under different conditions using a slow strain rate tensile test, electrochemical test, and electronic microanalysis. The experimental results showed that X80 pipeline steel has a certain degree of SCC sensitivity in high-pH simulated solution, and the crack growth mode was trans-granular stress corrosion cracking. In a sterile environment, the SCC mechanism of X80 steel was a mixture mechanism of anode dissolution and hydrogen embrittlement at −850 mV potential, while X80 steel had the lowest SCC sensitivity due to the weak effect of AD and HE; after Sulfate Reducing Bacteria (SRB) were inoculated, the SCC mechanism of X80 steel was an AD–membrane rupture mechanism at −850 mV potential. The synergistic effect of Cl− and SRB formed an oxygen concentration cell and an acidification microenvironment in the pitting corrosion pit, and this promoted the formation of pitting corrosion which induced crack nucleation, thus significantly improving the SCC sensitivity of X80 steel. The strong cathodic polarization promoted the local corrosion caused by SRB metabolism in the presence of bacteria, whereby the SCC sensitivity in the presence of bacteria was higher than that in sterile conditions under strong cathodic potential.</description><subject>Acidification</subject><subject>Anodic dissolution</subject><subject>Bacteria</subject><subject>Cathodic polarization</subject><subject>Cathodic protection</subject><subject>Concentration cell corrosion</subject><subject>Corrosion</subject><subject>Corrosion effects</subject><subject>Corrosion mechanisms</subject><subject>Corrosion potential</subject><subject>Crack initiation</subject><subject>Crack propagation</subject><subject>Dissolution</subject><subject>Electrode polarization</subject><subject>Electrodes</subject><subject>Experiments</subject><subject>Failure analysis</subject><subject>Fracture mechanics</subject><subject>High strength low alloy steels</subject><subject>Hydrogen</subject><subject>Hydrogen embrittlement</subject><subject>Mechanical properties</subject><subject>Microorganisms</subject><subject>Nucleation</subject><subject>Pitting (corrosion)</subject><subject>Simulation</subject><subject>Slow strain rate</subject><subject>Soils</subject><subject>Steel</subject><subject>Stress corrosion cracking</subject><subject>Structural steels</subject><subject>Sulfate reduction</subject><subject>Synergistic effect</subject><subject>Tensile strength</subject><subject>Tensile tests</subject><issn>1996-1944</issn><issn>1996-1944</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNpdkU1rFTEUhoMotrTd-AsCbkQYzVczyUZoL61XKCidCu5CJjnTm5KZjMlMwX_fXFrUNpuE5HkfzslB6B0lnzjX5PNoqWBMakVfoUOqtWyoFuL1f-cDdFLKHamLc6qYfosOuFCccUUP0XwxDOAWnAbcXZ9jO3l8Ns8xgMc_0gLTEmzEacLdkqEUvEk5pxLqxTns7H1IeZ_8pUgFACIOE96G210zb3GXQsRdGNdol2rrUlyXGjxGbwYbC5w87Ufo5-XFzWbbXH3_-m1zdtU4rvjSSO771ktPW9pa73VLeM_B9T0DpZ0Qtm3pKSWKOEmp95b07FS6mhoEALeSH6Evj9557UfwrraSbTRzDqPNf0yywTx_mcLO3KZ7oySjQuoq-PAkyOn3CmUxYygOYrQTpLUYJokgjBElKvr-BXqX1jzV9vZU1RFO20p9fKRc_cKSYfhbDCVmP0vzb5b8ATLIjws</recordid><startdate>20211118</startdate><enddate>20211118</enddate><creator>Xu, Congmin</creator><creator>Gao, Haoran</creator><creator>Zhu, Wensheng</creator><creator>Wang, Wenyuan</creator><creator>Sun, Can</creator><creator>Chen, Yueqing</creator><general>MDPI AG</general><general>MDPI</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>20211118</creationdate><title>Effect of SRB and Applied Potential on Stress Corrosion Behavior of X80 Steel in High-pH Soil Simulated Solution</title><author>Xu, Congmin ; Gao, Haoran ; Zhu, Wensheng ; Wang, Wenyuan ; Sun, Can ; Chen, Yueqing</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c383t-63db7d6d1717add9703b3ecbb2e89c44a77151080c611dda0b256c63df4ee3a63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Acidification</topic><topic>Anodic dissolution</topic><topic>Bacteria</topic><topic>Cathodic polarization</topic><topic>Cathodic protection</topic><topic>Concentration cell corrosion</topic><topic>Corrosion</topic><topic>Corrosion effects</topic><topic>Corrosion mechanisms</topic><topic>Corrosion potential</topic><topic>Crack initiation</topic><topic>Crack propagation</topic><topic>Dissolution</topic><topic>Electrode polarization</topic><topic>Electrodes</topic><topic>Experiments</topic><topic>Failure analysis</topic><topic>Fracture mechanics</topic><topic>High strength low alloy steels</topic><topic>Hydrogen</topic><topic>Hydrogen embrittlement</topic><topic>Mechanical properties</topic><topic>Microorganisms</topic><topic>Nucleation</topic><topic>Pitting (corrosion)</topic><topic>Simulation</topic><topic>Slow strain rate</topic><topic>Soils</topic><topic>Steel</topic><topic>Stress corrosion cracking</topic><topic>Structural steels</topic><topic>Sulfate reduction</topic><topic>Synergistic effect</topic><topic>Tensile strength</topic><topic>Tensile tests</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Xu, Congmin</creatorcontrib><creatorcontrib>Gao, Haoran</creatorcontrib><creatorcontrib>Zhu, Wensheng</creatorcontrib><creatorcontrib>Wang, Wenyuan</creatorcontrib><creatorcontrib>Sun, Can</creatorcontrib><creatorcontrib>Chen, Yueqing</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>Materials Science Database</collection><collection>Materials Science Collection</collection><collection>Access via ProQuest (Open Access)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Xu, Congmin</au><au>Gao, Haoran</au><au>Zhu, Wensheng</au><au>Wang, Wenyuan</au><au>Sun, Can</au><au>Chen, Yueqing</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of SRB and Applied Potential on Stress Corrosion Behavior of X80 Steel in High-pH Soil Simulated Solution</atitle><jtitle>Materials</jtitle><date>2021-11-18</date><risdate>2021</risdate><volume>14</volume><issue>22</issue><spage>6981</spage><pages>6981-</pages><issn>1996-1944</issn><eissn>1996-1944</eissn><abstract>The effect of SRB and applied potential on the stress corrosion sensitivity of X80 pipeline steel was analyzed in high-pH soil simulated solution under different conditions using a slow strain rate tensile test, electrochemical test, and electronic microanalysis. The experimental results showed that X80 pipeline steel has a certain degree of SCC sensitivity in high-pH simulated solution, and the crack growth mode was trans-granular stress corrosion cracking. In a sterile environment, the SCC mechanism of X80 steel was a mixture mechanism of anode dissolution and hydrogen embrittlement at −850 mV potential, while X80 steel had the lowest SCC sensitivity due to the weak effect of AD and HE; after Sulfate Reducing Bacteria (SRB) were inoculated, the SCC mechanism of X80 steel was an AD–membrane rupture mechanism at −850 mV potential. The synergistic effect of Cl− and SRB formed an oxygen concentration cell and an acidification microenvironment in the pitting corrosion pit, and this promoted the formation of pitting corrosion which induced crack nucleation, thus significantly improving the SCC sensitivity of X80 steel. The strong cathodic polarization promoted the local corrosion caused by SRB metabolism in the presence of bacteria, whereby the SCC sensitivity in the presence of bacteria was higher than that in sterile conditions under strong cathodic potential.</abstract><cop>Basel</cop><pub>MDPI AG</pub><pmid>34832381</pmid><doi>10.3390/ma14226981</doi><oa>free_for_read</oa></addata></record> |
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| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; PubMed Central Open Access; MDPI - Multidisciplinary Digital Publishing Institute; PubMed Central; Free Full-Text Journals in Chemistry |
| subjects | Acidification Anodic dissolution Bacteria Cathodic polarization Cathodic protection Concentration cell corrosion Corrosion Corrosion effects Corrosion mechanisms Corrosion potential Crack initiation Crack propagation Dissolution Electrode polarization Electrodes Experiments Failure analysis Fracture mechanics High strength low alloy steels Hydrogen Hydrogen embrittlement Mechanical properties Microorganisms Nucleation Pitting (corrosion) Simulation Slow strain rate Soils Steel Stress corrosion cracking Structural steels Sulfate reduction Synergistic effect Tensile strength Tensile tests |
| title | Effect of SRB and Applied Potential on Stress Corrosion Behavior of X80 Steel in High-pH Soil Simulated Solution |
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