Corrosion CommunicationsPub Date : 2026-03-01Epub Date: 2025-07-18DOI: 10.1016/j.corcom.2025.03.001
Rui Xie , Quantong Jiang , Dongxiao Han , Ye Chen , Wanpeng Liu , Yantong Pei , Jizhou Duan , Baorong Hou
{"title":"Influence of microarc oxidation coating microstructure on the corrosion resistance of Al-La alloy in natural seawater environment","authors":"Rui Xie , Quantong Jiang , Dongxiao Han , Ye Chen , Wanpeng Liu , Yantong Pei , Jizhou Duan , Baorong Hou","doi":"10.1016/j.corcom.2025.03.001","DOIUrl":"10.1016/j.corcom.2025.03.001","url":null,"abstract":"<div><div>Microarc oxidation (MAO) coatings on Al-10wt.%La alloy were synthesized by incorporating varying concentrations of tungsten carbide (WC) into the electrolyte. The micromorphology, elemental distribution, three-dimensional morphology, physical phase composition, and corrosion resistance of the resulting MAO coatings were systematically analyzed and characterized. Our findings indicate that the surface micropores, pore diameter, and roughness of the MAO coatings exhibited a biphasic response to the WC concentration, with a decrease followed by an increase as the WC concentration increased. Concurrently, the coating thickness initially increased and then decreased with increasing WC concentration. The MAO coatings significantly enhanced the corrosion resistance of the Al-10La alloy compared to the uncoated substrate. The variation in WC concentration altered the densification of the coatings, which in turn influenced their corrosion resistance. Notably, at a WC concentration of 4 g/L, the MAO coatings demonstrated optimal corrosion resistance.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"21 ","pages":"Pages 205-218"},"PeriodicalIF":9.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147448850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Corrosion CommunicationsPub Date : 2026-03-01Epub Date: 2025-10-24DOI: 10.1016/j.corcom.2025.03.004
Yuan Li , Qihao Xu , Baoyu Cai , Kewei Gao , Jinxu Li
{"title":"Corrosion evolution of different grain configurations in 7050 Al alloy and its influence on mechanical properties","authors":"Yuan Li , Qihao Xu , Baoyu Cai , Kewei Gao , Jinxu Li","doi":"10.1016/j.corcom.2025.03.004","DOIUrl":"10.1016/j.corcom.2025.03.004","url":null,"abstract":"<div><div>Corrosion behavior of 7050-T7451 aluminum (Al) alloy in a salt spray environment was investigated, with a particular focus on the relationship between grain configurations and corrosion behavior, highlighting the mechanisms of exfoliation corrosion formation and propagation. Low-angle grain boundaries, characterized by high strain energy, serve as principal sites for the initiation and propagation of this form of corrosion. Intergranular corrosion is primarily driven by the dealloying of grain boundary precipitates. While the chemical composition of the corrosion product film remained largely unchanged, its altered corrosion kinetics significantly influenced the loss of mechanical properties of the material.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"21 ","pages":"Pages 1-13"},"PeriodicalIF":9.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145428837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Corrosion CommunicationsPub Date : 2026-03-01Epub Date: 2025-07-02DOI: 10.1016/j.corcom.2024.11.002
Yaohua Gao , Jiajia Wu , Dun Zhang , Yi Wang , Wenkai Wang , Hanzhe Sun
{"title":"Corrosion behavior of Q235 steel by Pseudodesulfovibrio cashew with sulfate and nitrate as electron acceptors","authors":"Yaohua Gao , Jiajia Wu , Dun Zhang , Yi Wang , Wenkai Wang , Hanzhe Sun","doi":"10.1016/j.corcom.2024.11.002","DOIUrl":"10.1016/j.corcom.2024.11.002","url":null,"abstract":"<div><div>Sulfate and nitrate exhibit different standard electrode potentials, potentially causing variations in corrosion mechanisms. However, their impact on bacteria as electron acceptors remains undocumented. This study aims to unveil corrosion behavior of Q235 steel in the presence of <em>Pseudodesulfovibrio cashew</em> (<em>P. cashew</em>) in sulfate and nitrate environments. Results indicate that sulfate and nitrate do not induce divergent corrosion outcomes under sterile conditions. Conversely, inoculation with <em>P. cashew</em> accelerates corrosion in both scenarios, with notably greater severity observed in the nitrate medium. The heightened corrosiveness of <em>P. cashew</em> when utilizing nitrate as an electron acceptor is attributed primarily to a lower Δ<em>G</em><sup>0’</sup>, increased sessile cell population within biofilms, heightened bacterial metabolic activity, and a more extensive range of corrosion pathways.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"21 ","pages":"Pages 136-146"},"PeriodicalIF":9.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147395093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Corrosion CommunicationsPub Date : 2026-03-01Epub Date: 2026-02-05DOI: 10.1016/j.corcom.2026.02.003
Luntao Wang , Bingxiao Shi , Xin Guo , Xuequn Cheng , Xiaogang Li , Philippe Marcus
{"title":"A critical review on advanced surface analysis techniques used for studying the adsorption mechanisms of organic corrosion inhibitors","authors":"Luntao Wang , Bingxiao Shi , Xin Guo , Xuequn Cheng , Xiaogang Li , Philippe Marcus","doi":"10.1016/j.corcom.2026.02.003","DOIUrl":"10.1016/j.corcom.2026.02.003","url":null,"abstract":"<div><div>Corrosion inhibition of metals in aggressive environments remains a key challenge. Organic inhibitors, especially those with nitrogen, oxygen, or sulfur atoms, are widely studied for their strong adsorption and protective film formation. This review summarizes the classification and adsorption mechanisms of organic inhibitors, followed by recent advances in surface analysis techniques such as AFM, STM, XPS, ToF-SIMS, and Raman spectroscopy, which offer molecular-level insights into inhibitor–metal interactions. Despite progress, challenges remain in capturing dynamic interfacial processes under realistic conditions. Future perspectives highlight the integration of experimental techniques with computational modeling and the development of in-situ platforms for improved inhibitor design.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"21 ","pages":"Pages 81-104"},"PeriodicalIF":9.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147395094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Corrosion CommunicationsPub Date : 2026-03-01Epub Date: 2025-05-12DOI: 10.1016/j.corcom.2024.11.001
Guoyong Ran, Xinzhe Yuan, Wenrui Tu, Yiming Jiang, Jin Li, Yangting Sun
{"title":"Enhancing pitting resistance of stainless steel by surface cleaning through potentiostatic pulse technique","authors":"Guoyong Ran, Xinzhe Yuan, Wenrui Tu, Yiming Jiang, Jin Li, Yangting Sun","doi":"10.1016/j.corcom.2024.11.001","DOIUrl":"10.1016/j.corcom.2024.11.001","url":null,"abstract":"<div><div>Enhancing pitting resistance is essential for stainless steel. This study compares the pitting resistance of two austenitic stainless steels, 316L and 316H, before and after Potentiostatic Pulse Technique (PPT). It is indicated PPT can improve pitting resistance in both steels, but to different extents. The oxide inclusions in 316L have higher Ca contents, resulting in more potential pitting initiation sites and poorer original pitting resistance. However, after surface cleaning by PPT, the pitting resistance of 316L improves more significantly. This research elucidates the impact of PPT on pitting resistance, aiding in the application of stainless steel.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"21 ","pages":"Pages 73-80"},"PeriodicalIF":9.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146173085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Corrosion CommunicationsPub Date : 2026-03-01Epub Date: 2025-05-17DOI: 10.1016/j.corcom.2024.08.003
Yan Li , Zhaoyun Gao , Hongbing Wang , Xingchuan Zhao , Tao Zhang , Fuhui Wang
{"title":"Efficient corrosion inhibition mechanism of barbituric acid and sodium phosphate on AZ91 Mg alloys in NaCl solution","authors":"Yan Li , Zhaoyun Gao , Hongbing Wang , Xingchuan Zhao , Tao Zhang , Fuhui Wang","doi":"10.1016/j.corcom.2024.08.003","DOIUrl":"10.1016/j.corcom.2024.08.003","url":null,"abstract":"<div><div>The surface of the Mg alloy develops a stable and dense film of corrosion products through the synergistic interaction of barbituric acid (BA) and sodium phosphate (SP). The combination of SP and BA exhibits a strong corrosion inhibition effect, with a corrosion inhibition efficiency of 83.67% observed in mass loss experiments. Furthermore, electrochemical tests reveal a corrosion inhibition efficiency of 94.04%. SP predominantly forms a protective Mg<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub> layer by reacting with Mg, effectively shielding the Mg surface from the corrosive environment. Theoretical calculations indicated that BA tends to align in a nearly parallel orientation on the Mg (0 0 1) surface. Moreover, BA inhibits the cathodic reaction by adsorbing onto the Mg surface and promotes the activation of Mg on the surface. The synergistic action of SP and BA enhances the efficacy of inhibiting Mg alloy corrosion by creating a protective film and adsorbing to prevent further reactions.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"21 ","pages":"Pages 105-117"},"PeriodicalIF":9.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147394804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Corrosion CommunicationsPub Date : 2026-03-01Epub Date: 2025-07-08DOI: 10.1016/j.corcom.2024.10.003
Junli Sun , Qixin Yan , Jianlei Song , Donghu Li , Qian Wang , Kunkun Deng , Yinghui Wei , Lifeng Hou
{"title":"A novel procedure for anodic reaction quantitative restructuration and its application in pure magnesium","authors":"Junli Sun , Qixin Yan , Jianlei Song , Donghu Li , Qian Wang , Kunkun Deng , Yinghui Wei , Lifeng Hou","doi":"10.1016/j.corcom.2024.10.003","DOIUrl":"10.1016/j.corcom.2024.10.003","url":null,"abstract":"<div><div>The anodic dissolution behavior of pure magnesium in sodium chloride solution was characterized using a synchronous online monitoring system. Concurrently, the film-forming magnesium was quantitatively characterized using a Thermal Gravimetric Analyzer (TGA). By combining these two analyses, the anodic reaction during the process of anodic polarization of magnesium was comprehensively described for the first time. This novel procedure allows for detailed examination of the quantitative relationship between film-forming magnesium and dissolved magnesium. To elucidate the anomalous hydrogen evolution, a plausible local active site mechanism was proposed. This mechanism suggests that uneven current distribution causes the local active dissolution, creating a potential difference that leads to the formation of micro-galvanic couples and subsequently anomalous hydrogen evolution.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"21 ","pages":"Pages 118-125"},"PeriodicalIF":9.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147394732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Corrosion CommunicationsPub Date : 2026-03-01Epub Date: 2025-08-05DOI: 10.1016/j.corcom.2024.12.003
Lei Liu , Shuai Dong , Xiao-Bo Chen , Fulin Wang , Fenghua Wang , Jie Dong
{"title":"Improving energy efficiency and corrosion resistance of PEO coating on Zr alloys through a two-frequency stepped strategy","authors":"Lei Liu , Shuai Dong , Xiao-Bo Chen , Fulin Wang , Fenghua Wang , Jie Dong","doi":"10.1016/j.corcom.2024.12.003","DOIUrl":"10.1016/j.corcom.2024.12.003","url":null,"abstract":"<div><div>It was reported that high frequencies can improve energy efficiency and corrosion resistance of plasma electrolytic oxidation (PEO) coating by accelerating its growth rate and refining discharge pores, respectively. In this study, we observed that the application of ultra-high frequency (∼10<sup>4</sup> Hz) to produce a PEO coating on Zr alloy resulted in a notable increase in its growth rate at a later stage (after about 470 V), yet was deleterious to its growth at an initial stage (before about 470 V). It is postulated that the former was attributed to an increased concentration and specific surface area of reactants, while the latter was caused by a decreased reaction temperature. To further increase the energy efficiency of PEO coating, a two-frequency stepped method was proposed, whereby a low frequency (∼10<sup>2</sup> Hz) and an ultra-high frequency were respectively employed at the initial and the later stages. For comparison, two PEO counterparts at low frequency were prepared through either prolonging oxidation time or increasing current density to achieve the same thickness as the two-frequency stepped PEO coating. Results reveal that the proposed approach enables up to 41.8 % and 44.1 % energy saving in comparison to the two regular counterparts. Additionally, the resulting coating exhibited an order of magnitude lower corrosion current density in NaCl solution and a higher passivation tendency in HCl solution than its counterparts owing to the presence of a continuous intermediate dense layer.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"21 ","pages":"Pages 147-159"},"PeriodicalIF":9.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147394733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Efficient design of hydrogen-resistant ultra-high-strength steels via active learning and multiscale characterization","authors":"Chunlei Shang , Tongbo Jiang , Hong-Hui Wu , Faguo Hou , Shuize Wang , Junheng Gao , Haitao Zhao , Chaolei Zhang , Xinping Mao","doi":"10.1016/j.corcom.2025.12.002","DOIUrl":"10.1016/j.corcom.2025.12.002","url":null,"abstract":"<div><div>High-strength martensitic steels are extensively used in aerospace, automotive manufacturing, marine engineering, and other demanding applications due to their exceptional mechanical properties. In this work, an active learning strategy integrated with a genetic algorithm is proposed to accelerate the efficient design of ultra-high-strength steels (UHSS) with enhanced resistance to hydrogen embrittlement (HE). After three iterative optimization cycles, alloy compositions meeting the targeted performance metrics are successfully identified. Mechanical properties of selected alloys are subsequently validated through hydrogen-charged slow strain rate tensile (SSRT) testing. Concurrently, high-resolution transmission electron microscopy (HRTEM) and atom probe tomography (APT) are employed to elucidate key microstructural features. According to HRTEM statistical results, volume fraction of VC precipitates is about 0.623%, which acts as a hydrogen capture site and can effectively reduce sensitivity to HE. This methodology not only streamlines design process for UHSS and markedly enhances research and development efficiency, but also provides a solid theoretical foundation for performance optimization and practical application of high-strength steels.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"21 ","pages":"Pages 60-72"},"PeriodicalIF":9.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146173084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Corrosion CommunicationsPub Date : 2026-03-01Epub Date: 2025-07-16DOI: 10.1016/j.corcom.2025.02.002
Ishita Chopra , Saraswati Kumari Ola , Veena Dhayal
{"title":"Single-source hybrid inhibitor for corrosion protection of mild steel with TiO2 conversion coating","authors":"Ishita Chopra , Saraswati Kumari Ola , Veena Dhayal","doi":"10.1016/j.corcom.2025.02.002","DOIUrl":"10.1016/j.corcom.2025.02.002","url":null,"abstract":"<div><div>The present investigation aimed to know the corrosion behavior of mild steel (MS) and MS decorated with nano-TiO<sub>2</sub> in the presence of acetoxime and single-source hybrid inhibitor (SSHI), i.e., titanium tetra-acetoximate (TTA) in 3.5% NaCl solution. Electrochemical analysis, Fourier-transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), contact angle measurements, and mass loss analyses were used to investigate the corrosion behavior of the samples. TiO<sub>2</sub> decorated MS had increased roughness and high surface free energy (68.58 mJ/m<sup>2</sup>), making it more accessible for inhibitor adsorption. FT-IR confirms the formation of Ti-O-Ti, Ti-O, and Ti-O-Fe linkages, while SEM-EDS showed uniform TiO<sub>2</sub> coverage. TTA shows dual functionality by releasing acetoxime as an organic inhibitor and Ti-O frameworks that combine with TiO<sub>2</sub> on MS. It gives an 82.3% inhibition efficiency due to the formation of Ti-O-Fe linkages and increased impedance parameters indicating effective barrier formation. The hybrid approach of combining TTA with TiO<sub>2</sub> coating over MS demonstrated synergistic performances, providing a sustainable and effective alternative to traditional inhibitors.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"21 ","pages":"Pages 195-204"},"PeriodicalIF":9.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147448851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}