Microbiologically influenced corrosion inhibition represents a promising and eco-friendly technology. As a key component, the role of extracellular polymeric substances and their interaction mechanisms with material surfaces deserve in-depth investigation. Herein, we evaluated the contributions of biofilm components from Tenacibaculum mesophilum D-6 to corrosion inhibition. Results indicated that released polysaccharides (RPSs) played a crucial role in mitigating corrosion. Both pitting and uniform corrosion of X80 pipeline steel were inhibited by RPSs. Weight loss tests indicated that 5 g/L RPSs achieved a corrosion inhibition efficiency of 58.9 %. Further investigations were conducted to elucidate the interaction mechanisms between RPSs and metal surfaces.
{"title":"Extracellular polysaccharides of Tenacibaculum mesophilum D-6 play a major role during its corrosion protection for X80 carbon steel in seawater","authors":"Jingru Zhang , Zhong Li , Wenyue Sun, Xiangyu Li, Miaomiao Cui, Enze Zhou, Fuhui Wang, Dake Xu","doi":"10.1016/j.corsci.2025.112811","DOIUrl":"10.1016/j.corsci.2025.112811","url":null,"abstract":"<div><div>Microbiologically influenced corrosion inhibition represents a promising and eco-friendly technology. As a key component, the role of extracellular polymeric substances and their interaction mechanisms with material surfaces deserve in-depth investigation. Herein, we evaluated the contributions of biofilm components from <em>Tenacibaculum mesophilum</em> D-6 to corrosion inhibition. Results indicated that released polysaccharides (RPSs) played a crucial role in mitigating corrosion. Both pitting and uniform corrosion of X80 pipeline steel were inhibited by RPSs. Weight loss tests indicated that 5 g/L RPSs achieved a corrosion inhibition efficiency of 58.9 %. Further investigations were conducted to elucidate the interaction mechanisms between RPSs and metal surfaces.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"249 ","pages":"Article 112811"},"PeriodicalIF":7.4,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143508759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-22DOI: 10.1016/j.corsci.2025.112784
Ruidong Li , Jianna Li , Jianbo Zhu , Zehui Gao , Chongjun Liu , Yueshe Wang , Yuekun Lai , Jun Hu
Supercritical carbon dioxide (sCO) corrosion remains a significant and ongoing impediment within the domain of carbon capture, utilization, and storage (CCUS) technologies, necessitating the advancement of robust mitigation tactics. Based on experimental and theoretical investigations, we have studied the inhibition performance of a composite formulation on X80 steel. The in-situ electrochemical studies have confirmed the superior performance of this composite inhibitor, achieving an inhibition efficiency exceeding 99.79%. Through atomistic simulations, we gain mechanistic insights at the molecular level, revealing how the dissociated heteroaromatic species of the composite inhibitor effectively chelate to the metal surface through unsaturated oxygen–carbon pairings, thereby enhancing surface coverage. Such findings provide a prototypical structure–activity relationship to inform the application of optimized corrosion inhibitor formulations in the challenging setting of sCO2 environments.
{"title":"A highly effective, economical and environmentally friendly composite corrosion inhibitor strategy for dynamic supercritical CO2 aqueous environments","authors":"Ruidong Li , Jianna Li , Jianbo Zhu , Zehui Gao , Chongjun Liu , Yueshe Wang , Yuekun Lai , Jun Hu","doi":"10.1016/j.corsci.2025.112784","DOIUrl":"10.1016/j.corsci.2025.112784","url":null,"abstract":"<div><div>Supercritical carbon dioxide (sCO<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>) corrosion remains a significant and ongoing impediment within the domain of carbon capture, utilization, and storage (CCUS) technologies, necessitating the advancement of robust mitigation tactics. Based on experimental and theoretical investigations, we have studied the inhibition performance of a composite formulation on X80 steel. The in-situ electrochemical studies have confirmed the superior performance of this composite inhibitor, achieving an inhibition efficiency exceeding 99.79%. Through atomistic simulations, we gain mechanistic insights at the molecular level, revealing how the dissociated heteroaromatic species of the composite inhibitor effectively chelate to the metal surface through unsaturated oxygen–carbon pairings, thereby enhancing surface coverage. Such findings provide a prototypical structure–activity relationship to inform the application of optimized corrosion inhibitor formulations in the challenging setting of sCO<sub>2</sub> environments.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"248 ","pages":"Article 112784"},"PeriodicalIF":7.4,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143471407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-21DOI: 10.1016/j.corsci.2025.112795
Yi-Jun Lin, Siao-Ying Chen, Wei-Liang Chien, Zong-Syun Yang, Chao-Sung Lin
Permanganate conversion coating, a potential alternative to chromate conversion coating, was employed on WE43-T5 Mg alloys. A continuous MnO2/Mg(OH)2 coating was observed on the Mg matrix and micrometric second-phase particles (Mg24Y5, Zr-rich particle). In contrast, no coating formed at grain boundaries, and prolonged immersion resulted in cracks within the grains. These defects were detrimental to the corrosion resistance. A second treatment in ZrF62- solution healed these defects via ZrO2 precipitation. This MnO2/ZrO2 composite coating efficiently enhanced the corrosion in 3.5 wt% NaCl, including reduced corrosion current density and corrosion area ratio, and escalated breakdown potential and total impedance.
{"title":"A MnO2-ZrO2 composite conversion coating to enhance. the corrosion resistance of WE43-T5 Mg alloys","authors":"Yi-Jun Lin, Siao-Ying Chen, Wei-Liang Chien, Zong-Syun Yang, Chao-Sung Lin","doi":"10.1016/j.corsci.2025.112795","DOIUrl":"10.1016/j.corsci.2025.112795","url":null,"abstract":"<div><div>Permanganate conversion coating, a potential alternative to chromate conversion coating, was employed on WE43-T5 Mg alloys. A continuous MnO<sub>2</sub>/Mg(OH)<sub>2</sub> coating was observed on the Mg matrix and micrometric second-phase particles (Mg<sub>24</sub>Y<sub>5</sub>, Zr-rich particle). In contrast, no coating formed at grain boundaries, and prolonged immersion resulted in cracks within the grains. These defects were detrimental to the corrosion resistance. A second treatment in ZrF<sub>6</sub><sup>2-</sup> solution healed these defects via ZrO<sub>2</sub> precipitation. This MnO<sub>2</sub>/ZrO<sub>2</sub> composite coating efficiently enhanced the corrosion in 3.5 wt% NaCl, including reduced corrosion current density and corrosion area ratio, and escalated breakdown potential and total impedance.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"248 ","pages":"Article 112795"},"PeriodicalIF":7.4,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143464017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-21DOI: 10.1016/j.corsci.2025.112780
Luiz Carlos Rezende Coelho , Alice Paris , Patrícia Hatsue Suegama , Dany Michell Andrade Centeno , Hélio Goldenstein , Hercílio Gomes de Melo
This study compares the corrosion resistance, in the as-printed condition, of 17–4 PH stainless steel samples produced by laser-powder bed fusion (L-PBF) and laser-directed energy deposition (L-DED). To highlight the role of the production procedure, samples with low defect levels were obtained from powders with similar compositions. Microstructural characterization showed ferritic-martensitic microstructure for L-DED and ferritic for L-PBF. The distorted martensitic lattice revealed by EBSD analysis results in a microstructure with higher stored energy and lower corrosion resistance for the L-DED-produced samples. After the onset of pitting corrosion, samples do not repassivate due to Cu deposition at the pit bottom.
{"title":"A comparative investigation of the electrochemical behavior of as-printed 17-4 PH stainless steel produced by L-PBF and L-DED","authors":"Luiz Carlos Rezende Coelho , Alice Paris , Patrícia Hatsue Suegama , Dany Michell Andrade Centeno , Hélio Goldenstein , Hercílio Gomes de Melo","doi":"10.1016/j.corsci.2025.112780","DOIUrl":"10.1016/j.corsci.2025.112780","url":null,"abstract":"<div><div>This study compares the corrosion resistance, in the as-printed condition, of 17–4 PH stainless steel samples produced by laser-powder bed fusion (L-PBF) and laser-directed energy deposition (L-DED). To highlight the role of the production procedure, samples with low defect levels were obtained from powders with similar compositions. Microstructural characterization showed ferritic-martensitic microstructure for L-DED and ferritic for L-PBF. The distorted martensitic lattice revealed by EBSD analysis results in a microstructure with higher stored energy and lower corrosion resistance for the L-DED-produced samples. After the onset of pitting corrosion, samples do not repassivate due to Cu deposition at the pit bottom.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"249 ","pages":"Article 112780"},"PeriodicalIF":7.4,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143551107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-21DOI: 10.1016/j.corsci.2025.112785
Pauline Audigié , Aurélie Vande Put , Benoit Malard , André Malié , Daniel Monceau
Pt-rich γ-γ’ bond-coatings for thermal barrier coating systems may lead to detrimental pore formation. An extensive analysis of literature on voids nucleation and growth in the different metallic components of several kinds of TBC systems was performed. The study then focused on Pt-rich γ-γ’ bond-coating/Ni-based superalloy systems employing an original statistical analysis of voids formation and spatial distribution through secondary electron microscopy with focused ion beam sequential cross sectioning and synchrotron X-Ray tomography. It was found that pores at the Pt-rich γ-γ’ bond-coating/superalloy interface form due to the Kirkendall effect, with the highest concentration located at the Pt diffusion front.
{"title":"Analysis of void formation in Pt-rich γ-γ’ bond-coatings for TBC system application","authors":"Pauline Audigié , Aurélie Vande Put , Benoit Malard , André Malié , Daniel Monceau","doi":"10.1016/j.corsci.2025.112785","DOIUrl":"10.1016/j.corsci.2025.112785","url":null,"abstract":"<div><div>Pt-rich γ-γ’ bond-coatings for thermal barrier coating systems may lead to detrimental pore formation. An extensive analysis of literature on voids nucleation and growth in the different metallic components of several kinds of TBC systems was performed. The study then focused on Pt-rich γ-γ’ bond-coating/Ni-based superalloy systems employing an original statistical analysis of voids formation and spatial distribution through secondary electron microscopy with focused ion beam sequential cross sectioning and synchrotron X-Ray tomography. It was found that pores at the Pt-rich γ-γ’ bond-coating/superalloy interface form due to the Kirkendall effect, with the highest concentration located at the Pt diffusion front.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"249 ","pages":"Article 112785"},"PeriodicalIF":7.4,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143562934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-20DOI: 10.1016/j.corsci.2025.112799
Zixuan Xu , Tingyue Gu , Yunhu Ding , Renyang He , Yi Fan , Tiansui Zhang , Huihai Wan , Ying He , Yunqing Xiong , Hongfang Liu
Microbiologically influenced corrosion (MIC) of high manganese steel (25Mn) by a marine sulfate reducing bacterium (SRB) was systematically investigated. Mn²+ enhanced SRB activity by H₂S detoxification. The culture medium with low carbon source increased MIC by 2.1 times. 4 % Cr in 25Mn provided partial passivation. Riboflavin and nano-magnetite injections validated the dominant contribution of extracellular electron transfer mechanisms. Electron backscatter diffraction showed the intergranular corrosion at austenite boundaries. SRB enhanced hydrogen permeation and decreased tensile strength by 21 %. This study identifies the primary mechanism of 25Mn and provides important insights into material design and corrosion mitigation.
{"title":"Microbial corrosion of high manganese austenitic steel by a sulfate reducing bacterium dominated by extracellular electron transfer and intergranular effect","authors":"Zixuan Xu , Tingyue Gu , Yunhu Ding , Renyang He , Yi Fan , Tiansui Zhang , Huihai Wan , Ying He , Yunqing Xiong , Hongfang Liu","doi":"10.1016/j.corsci.2025.112799","DOIUrl":"10.1016/j.corsci.2025.112799","url":null,"abstract":"<div><div>Microbiologically influenced corrosion (MIC) of high manganese steel (25Mn) by a marine sulfate reducing bacterium (SRB) was systematically investigated. Mn²<sup>+</sup> enhanced SRB activity by H<sub>₂</sub>S detoxification. The culture medium with low carbon source increased MIC by 2.1 times. 4 % Cr in 25Mn provided partial passivation. Riboflavin and nano-magnetite injections validated the dominant contribution of extracellular electron transfer mechanisms. Electron backscatter diffraction showed the intergranular corrosion at austenite boundaries. SRB enhanced hydrogen permeation and decreased tensile strength by 21 %. This study identifies the primary mechanism of 25Mn and provides important insights into material design and corrosion mitigation.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"248 ","pages":"Article 112799"},"PeriodicalIF":7.4,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143488270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-20DOI: 10.1016/j.corsci.2025.112808
Xiaoyuan Hu , Faguo Li , Yu Zhang , Licheng Jia , Houwen Chen , Yongxiong Liu , Yi Yang , Fucheng Yin
The Ti-Al-Si composite coating on Ti65 alloy consists of Ti3Al, TiAl, Ti3Al5 + TiAl2, Ti(Al, Si)3, and Al2O3 prepared by two-step hot-dipping plus pre-oxidation method. The phase structure and elemental distribution of the alloy phase layer were analyzed by XRD, SEM-EDS, HRTEM, and AC-TEM. During prolonged oxidation, many mixed oxides of TiO2 and Al2O3 formed in the longitudinal thermal cracks, sealing the cracks. Moreover, the Ti3Al phase acted as a barrier to crack propagation, thereby preventing oxygen atoms from entering the substrate through the cracks. The oxidation weight gain of the coatings followed a sub-parabolic law, showing excellent oxidation resistance.
{"title":"Microstructural characteristics and long-term high-temperature oxidation resistance of Ti-Al-Si composite coating onTi65 alloy prepared by two-step hot-dipping plus pre-oxidation method","authors":"Xiaoyuan Hu , Faguo Li , Yu Zhang , Licheng Jia , Houwen Chen , Yongxiong Liu , Yi Yang , Fucheng Yin","doi":"10.1016/j.corsci.2025.112808","DOIUrl":"10.1016/j.corsci.2025.112808","url":null,"abstract":"<div><div>The Ti-Al-Si composite coating on Ti65 alloy consists of Ti<sub>3</sub>Al, TiAl, Ti<sub>3</sub>Al<sub>5</sub> + TiAl<sub>2</sub>, Ti(Al, Si)<sub>3</sub>, and Al<sub>2</sub>O<sub>3</sub> prepared by two-step hot-dipping plus pre-oxidation method. The phase structure and elemental distribution of the alloy phase layer were analyzed by XRD, SEM-EDS, HRTEM, and AC-TEM. During prolonged oxidation, many mixed oxides of TiO<sub>2</sub> and Al<sub>2</sub>O<sub>3</sub> formed in the longitudinal thermal cracks, sealing the cracks. Moreover, the Ti<sub>3</sub>Al phase acted as a barrier to crack propagation, thereby preventing oxygen atoms from entering the substrate through the cracks. The oxidation weight gain of the coatings followed a sub-parabolic law, showing excellent oxidation resistance.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"248 ","pages":"Article 112808"},"PeriodicalIF":7.4,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143474501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This study aimed to improve the adhesion of α-Al2O3 scale on aluminide coatings. Precipitation heat treatment at 1100°C in an inert atmosphere led to the formation of HfO2 pegs on the coating surface. These pegs penetrated deep into the coating, mechanically anchoring the α-Al2O3 scale and significantly improving its adhesion. The heat-treated coating exhibited reduced scale spallation and enhanced oxidation resistance. The formation of HfO2 pegs was attributed to the surface oxidation of Hf segregated from the superalloy substrate to the coating surface. The surface segregation of Hf also contributed to a reduction in the growth rate of α-Al2O3 scale, thereby helping to prevent scale spallation.
{"title":"Oxide pegs improved α-Al2O3 scale adhesion on aluminide coatings","authors":"Guo-Hui Meng, Pei-Pei Gui, Shan-Shan Li, Ya-Nan Wang, Ming-Yang Zhang, Kai-Yu Guo, Mei-Jun Liu, Guan-Jun Yang","doi":"10.1016/j.corsci.2025.112809","DOIUrl":"10.1016/j.corsci.2025.112809","url":null,"abstract":"<div><div>This study aimed to improve the adhesion of α-Al<sub>2</sub>O<sub>3</sub> scale on aluminide coatings. Precipitation heat treatment at 1100°C in an inert atmosphere led to the formation of HfO<sub>2</sub> pegs on the coating surface. These pegs penetrated deep into the coating, mechanically anchoring the α-Al<sub>2</sub>O<sub>3</sub> scale and significantly improving its adhesion. The heat-treated coating exhibited reduced scale spallation and enhanced oxidation resistance. The formation of HfO<sub>2</sub> pegs was attributed to the surface oxidation of Hf segregated from the superalloy substrate to the coating surface. The surface segregation of Hf also contributed to a reduction in the growth rate of α-Al<sub>2</sub>O<sub>3</sub> scale, thereby helping to prevent scale spallation.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"249 ","pages":"Article 112809"},"PeriodicalIF":7.4,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143508757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-20DOI: 10.1016/j.corsci.2025.112798
Fengting Li , Wentao Qu , Yunchao Peng , Liqiang Yang , Li Wang , Huiling Su , Miantuo Li , Zhikun Wang , Jingyue Wang , Yu Fu , Songqing Hu
In this study, we developed ionic liquid-modified nitrogen-doped carbon dots (IL-NCDs) with enhanced π-π interactions, effectively addressing the aggregation issue of conventional carbon dots in strong acidic conditions. The synthesized IL-NCDs demonstrated superior dispersibility and long-term protective performance in 1 M HCl, achieving a corrosion inhibition efficiency of 97.34 % at 60 mg/L and maintaining protection for over 20 days. The optimized surface charge and increased active sites facilitated the formation of a dense protective film, offering an efficient and eco-friendly solution for metal corrosion protection in acidic environments, with significant potential for industrial applications.
{"title":"Regulating π-π interactions in carbon dots via N-doping & ionic liquid modification for enhanced efficiency in 1 M HCl","authors":"Fengting Li , Wentao Qu , Yunchao Peng , Liqiang Yang , Li Wang , Huiling Su , Miantuo Li , Zhikun Wang , Jingyue Wang , Yu Fu , Songqing Hu","doi":"10.1016/j.corsci.2025.112798","DOIUrl":"10.1016/j.corsci.2025.112798","url":null,"abstract":"<div><div>In this study, we developed ionic liquid-modified nitrogen-doped carbon dots (IL-NCDs) with enhanced π-π interactions, effectively addressing the aggregation issue of conventional carbon dots in strong acidic conditions. The synthesized IL-NCDs demonstrated superior dispersibility and long-term protective performance in 1 M HCl, achieving a corrosion inhibition efficiency of 97.34 % at 60 mg/L and maintaining protection for over 20 days. The optimized surface charge and increased active sites facilitated the formation of a dense protective film, offering an efficient and eco-friendly solution for metal corrosion protection in acidic environments, with significant potential for industrial applications.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"248 ","pages":"Article 112798"},"PeriodicalIF":7.4,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143474502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-20DOI: 10.1016/j.corsci.2025.112794
Wenhui Ye , Puren Liu , Dongyang Li , Lining Xu , Lijie Qiao
The study investigates the effect of cold-rolling on the electrochemical behavior of 2205 stainless steel under tensile elastic stress (TES) using in-situ electrochemical measurements. The results reveal that TES accelerates the corrosion sensitivity of 2205 stainless steel, with the open-circuit-potential(OCP) first decreasing and then increasing as the degree of cold-rolling increases. For the 40 % cold-rolling sample under TES, the OCP decreases by 53 % compared to the unstressed state, showing the highest corrosion sensitivity. When the cold-rolling deformation reaches 70 %, the OCP decreases by 38 %, and the dislocation-cell-structure alleviates the elastic stress effect on the corrosion sensitivity of stainless steel.
{"title":"Effect of tensile elastic stress on the electrochemical passivation behaviour of cold-rolled 2205 duplex stainless steel","authors":"Wenhui Ye , Puren Liu , Dongyang Li , Lining Xu , Lijie Qiao","doi":"10.1016/j.corsci.2025.112794","DOIUrl":"10.1016/j.corsci.2025.112794","url":null,"abstract":"<div><div>The study investigates the effect of cold-rolling on the electrochemical behavior of 2205 stainless steel under tensile elastic stress (TES) using in-situ electrochemical measurements. The results reveal that TES accelerates the corrosion sensitivity of 2205 stainless steel, with the open-circuit-potential(OCP) first decreasing and then increasing as the degree of cold-rolling increases. For the 40 % cold-rolling sample under TES, the OCP decreases by 53 % compared to the unstressed state, showing the highest corrosion sensitivity. When the cold-rolling deformation reaches 70 %, the OCP decreases by 38 %, and the dislocation-cell-structure alleviates the elastic stress effect on the corrosion sensitivity of stainless steel.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"248 ","pages":"Article 112794"},"PeriodicalIF":7.4,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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