Corrosion SciencePub Date : 2025-09-22DOI: 10.1016/j.corsci.2025.113347
Chaoran Ma , Zhice Yang , Xi Zhuo Jiang , Peng Zhou , Yang Zhao , Yong Hua , Cheng Su , Tao Zhang , Fuhui Wang
{"title":"Electropolishing-enhanced corrosion resistance mechanisms of 316L stainless steel in semiconductor applications: Inclusion regulation, passive film optimization and aggressive microdroplet suppression","authors":"Chaoran Ma , Zhice Yang , Xi Zhuo Jiang , Peng Zhou , Yang Zhao , Yong Hua , Cheng Su , Tao Zhang , Fuhui Wang","doi":"10.1016/j.corsci.2025.113347","DOIUrl":"10.1016/j.corsci.2025.113347","url":null,"abstract":"<div><div>316L stainless steel is exclusively utilized in manufacturing delivery pipelines of electronic special gas (ESG). Long-term exposure to corrosive ESG poses severe corrosion threats to stainless steel components. Particle contamination arising from corrosion products has emerged as a critical challenge impeding the advancement of semiconductor microchips. Electropolishing, a pivotal anti-corrosion techniques in semiconductor applications, enhances the corrosion resistance of 316L stainless steel through three primary mechanisms: 1) surface purification through significant removal of inclusions, 2) passive film optimization by improving structural integrity and flatness at matrix/inclusion interfaces and metal/film interfaces, accompanied by a 277 % increase in the CrOx/FeOx ratio, 3) Effective suppression of aggressive microdroplets formation through surface energy modification.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"257 ","pages":"Article 113347"},"PeriodicalIF":7.4,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145154415","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}
Corrosion SciencePub Date : 2025-09-22DOI: 10.1016/j.corsci.2025.113349
Peng Deng , Bin Yin , Lijun Zhang , Min Liu , Chunming Deng
{"title":"Thermo-mechanical coupling effects on the high-temperature oxidation behavior of a NiCrAlY-coated single-crystal superalloy","authors":"Peng Deng , Bin Yin , Lijun Zhang , Min Liu , Chunming Deng","doi":"10.1016/j.corsci.2025.113349","DOIUrl":"10.1016/j.corsci.2025.113349","url":null,"abstract":"<div><div>MCrAlY coatings provide effective high-temperature protection against oxidation and corrosion for turbine blades. However, the inevitable thermo-mechanical coupling during service has a significant impact on the oxidation resistance of the coating, and the internal mechanism remains unclear. This study investigated the oxidation behavior of the NiCrAlY coating/nickel-based single-crystal superalloy system under conditions with/without applied thermo-mechanical coupling. The results indicate that the specimens with/without stress developed markedly different oxide scales. Thermo-mechanical coupling promoted the formation of thicker, poorly protective spinel oxides and a thinner protective alumina layer. Notably, W-Y-rich Y<sub>2</sub>WO<sub>6</sub> oxides were exclusively detected on the surface of thermo-mechanical coupling specimens. The thermo-mechanical coupling effect aggravated the internal oxidation/nitridation of the NiCrAlY coating and weakened the protective capability of the oxide scale.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"257 ","pages":"Article 113349"},"PeriodicalIF":7.4,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145154243","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}
Corrosion SciencePub Date : 2025-09-22DOI: 10.1016/j.corsci.2025.113346
Xinhe Xu , Baoliang Cheng , Songhan Nie , Zhihao Yu , Zhanpeng Lu , Li Baojun , Junjie Chen , Tongming Cui , Sergio Lozano-Perez , Hannu Hänninen
{"title":"Effect of deformation and high-temperature concentrated alkaline solution on intergranular oxidation behavior and cracking resistance of Alloy 690 plugs","authors":"Xinhe Xu , Baoliang Cheng , Songhan Nie , Zhihao Yu , Zhanpeng Lu , Li Baojun , Junjie Chen , Tongming Cui , Sergio Lozano-Perez , Hannu Hänninen","doi":"10.1016/j.corsci.2025.113346","DOIUrl":"10.1016/j.corsci.2025.113346","url":null,"abstract":"<div><div>In this study, the long-term service reliability of Alloy 690 plug mock-ups for nuclear power plant steam generators was assessed via an accelerated stress corrosion cracking (SCC) test in 10 wt% NaOH at 350 °C. After 1000 h exposure, eight intergranular cracks initiated in highly deformed zones on the plug’s inner surface, induced by expansion joining and friction. Microstructural analysis revealed a few micrometers thick, three-layer oxide at the crack initiation sites: an outer Fe-rich spinel layer, a Ni-enriched solid-solution middle layer, and an inner mixed layer of localized Cr-rich oxides within the unoxidized Ni matrix. High-resolution characterization results showed that the alkaline environment promoted oxidation along deformation–induced dislocations and grain boundaries (GBs), forming fibrous inner and intergranular oxidation zones. Cr-rich oxides appeared only at coherent Σ3 GBs fronts, and no continuous Cr₂O₃ film formed on cracked high-angle grain boundaries. These findings indicate that the alkaline solution accelerates Cr-rich oxide dissolution at GBs while inhibiting protective Cr₂O₃ formation and that deformation-induced stress/strain facilitates oxidation and intergranular crack growth. This work quantitatively elucidates the coupled effects of oxidation and plastic deformation, validates high-temperature alkaline solution testing as a degradation–screening method and offers critical insights for service-life assessment and expansion–process optimization of Alloy 690 plugs.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"257 ","pages":"Article 113346"},"PeriodicalIF":7.4,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145118244","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}
{"title":"An area-tailored (Hf, Ta)B2-SiC coating for ultra-high thermal protection: Design and evolution of microstructure","authors":"Jiaqi Hou, Jiaping Zhang, Ruicong Chen, Chenglong Tan, Binghong Li, Xianghui Hou, Qiangang Fu","doi":"10.1016/j.corsci.2025.113353","DOIUrl":"10.1016/j.corsci.2025.113353","url":null,"abstract":"<div><div>In the service environments of advanced aircrafts, thermal and aerodynamic loads on different areas of carbon/carbon composites thermal-structural components exhibit significant variation, often leading to cracking or failure of the protective coatings due to mismatched thermal expansion and stress accumulation. To address the problem, an innovative area-tailored protective coating strategy is proposed in this paper. An area-tailored (Hf, Ta)B<sub>2</sub>-SiC coating was designed and prepared, featuring enriched (Hf, Ta)B<sub>2</sub> in the central area and SiC in the edge area, and was evaluated under oxyacetylene flame. After ablation, the area-tailored coating showed good cyclic ablation resistance due to the alleviated thermal stress mismatch across different coating regions, whose thickness and mass loss rates decreased by 104 % and 103 % after ablation for 30 s, respectively, compared to the uniform (Hf, Ta)B<sub>2</sub>-SiC coating. The ablation resistance is manifested in the thermostability of Hf-based oxides, sintering densification, and grain boundary pinning, which reduce oxygen diffusion and improve the stability of the oxide layer. This work provides a new strategy and inspiration for the design and preparation of coatings for thermal structural components.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"257 ","pages":"Article 113353"},"PeriodicalIF":7.4,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145154242","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}
Corrosion SciencePub Date : 2025-09-22DOI: 10.1016/j.corsci.2025.113352
Yuhao Zhou , Huayan Hu , Cheng Peng , Jie Liu , Yihan Zhao , Xiaoqing Shang , Can Guo , Zhao Shen , Miao Song , Lefu Zhang , Kai Chen
{"title":"A precipitation hardened austenitic stainless steel with excellent stress corrosion cracking resistance against high-temperature water","authors":"Yuhao Zhou , Huayan Hu , Cheng Peng , Jie Liu , Yihan Zhao , Xiaoqing Shang , Can Guo , Zhao Shen , Miao Song , Lefu Zhang , Kai Chen","doi":"10.1016/j.corsci.2025.113352","DOIUrl":"10.1016/j.corsci.2025.113352","url":null,"abstract":"<div><div>High-strength steels are susceptible to stress corrosion cracking (SCC). We developed a precipitation-hardened austenitic stainless steel via laser powder bed fusion that unexpectedly resists SCC in high-temperature water. It features weak texture and equiaxed crystals around dendrites, resulting in near-isotropic SCC behavior. Solidification segregation during solidification forms TiAlNi<sub>2</sub> precipitates at cell boundaries. These nano-scale TiAlNi<sub>2</sub> precipitates undergo preferential corrosion, initiating intragranular cracks, but blunt SCC-tips cease at these precipitates. Ti, Al and Ni from TiAlNi<sub>2</sub> spontaneously diffuse along phase interfaces toward the SCC front, and nearby TiAlNi<sub>2</sub> reduce the strain concentration, both of which enhance the SCC re-passivation. Furthermore, the multilevel strain buffer forms ahead of the blunt SCC edge, creating compressive strain at SCC tips that hinders propagation. This study provides a new strategy to improve SCC resistance through precipitation at dislocation cell boundaries in additively manufactured alloys.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"257 ","pages":"Article 113352"},"PeriodicalIF":7.4,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145118246","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}
Corrosion SciencePub Date : 2025-09-22DOI: 10.1016/j.corsci.2025.113345
Zhong Li , Lue Wu , Qingxiang Yu , Zhangzhi Shi , Yuping Ren , Mingxing Zhang , Fuhui Wang , Luning Wang , Dake Xu
{"title":"Intestinal bacteria-accelerated corrosion of biodegradable Zn–Mg alloys: Composition-dependent degradation behavior","authors":"Zhong Li , Lue Wu , Qingxiang Yu , Zhangzhi Shi , Yuping Ren , Mingxing Zhang , Fuhui Wang , Luning Wang , Dake Xu","doi":"10.1016/j.corsci.2025.113345","DOIUrl":"10.1016/j.corsci.2025.113345","url":null,"abstract":"<div><div>Zinc-based alloys are promising biodegradable materials for gastrointestinal devices, yet their degradation behavior in the complex, microbe-rich intestinal environment remains poorly understood. In this study, the corrosion behavior and underlying mechanisms of pure extruded Zn, Zn–0.03Mg, and Zn–0.05Mg alloys were systematically investigated in the presence of two representative intestinal bacteria, <em>Lactobacillus acidophilus</em> and <em>Lactobacillus plantarum</em>. Microstructural analysis revealed that trace Mg addition significantly refined the grain size of Zn alloys. Mechanical testing demonstrated that the yield strength of Zn–Mg alloys increased by approximately 3-fold compared to pure Zn, with nearly double the elongation after fracture. Electrochemical measurements, hydrogen release tests, weight loss analysis, and surface characterization showed that microbial activity accelerated the corrosion rate by 3–5 times. Notably, Mg incorporation effectively suppressed corrosion under both sterile and microbial conditions. Mechanistic analysis revealed that the acidic environment generated by bacterial metabolism was the primary driver of enhanced degradation. This work establishes a “structure–property–corrosion” relationship, offering a theoretical foundation for the mechanical optimization and degradation control of zinc-based biodegradable implants for gastrointestinal applications.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"257 ","pages":"Article 113345"},"PeriodicalIF":7.4,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145154263","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}
Corrosion SciencePub Date : 2025-09-22DOI: 10.1016/j.corsci.2025.113351
Yuxi Xu , Guanshui Ma , Zhongchang Li , Yan Zhang , Anfeng Zhang , Zhenyu Wang , Aiying Wang
{"title":"Valence-dependent TiO2 inhibition for enhancing oxidation resistance in Ti2AlC via Zr/Nb solid solution","authors":"Yuxi Xu , Guanshui Ma , Zhongchang Li , Yan Zhang , Anfeng Zhang , Zhenyu Wang , Aiying Wang","doi":"10.1016/j.corsci.2025.113351","DOIUrl":"10.1016/j.corsci.2025.113351","url":null,"abstract":"<div><div>Ti<sub>2</sub>AlC, as a typical MAX phase material, combines the excellent properties of both metals and ceramics for protective coatings used in harsh high-temperature conditions. However, concurrent existence of TiO<sub>2</sub> (rutile) and Al<sub>2</sub>O<sub>3</sub> easily causes the rapid growth of oxide scales and poor oxidation durability. In this study, we explored the pivotal concept of vacancy-dependent Zr/Nb solid solution to improve the oxidation resistance of Ti<sub>2</sub>AlC coating through the comprehensive atomic-scale calculations and microstructural characterizations. Results showed that the incorporated Zr and Nb concentration was about 5.3 and 5.2 at.% in high-purity Ti<sub>2</sub>AlC coating, respectively, presenting the homogeneous substitutions for M-site Ti atoms within the nanolayered structure. Comparing with the pristine Ti<sub>2</sub>AlC coating, both Zr and Nb solid solution distinctly inhibited the growth of TiO<sub>2</sub> and simultaneously promoted a continuous Al<sub>2</sub>O<sub>3</sub> layer, enhancing oxidation resistance during 650 °C exposure. The density functional theory calculations revealed that either solid solution of Zr or Nb in Ti<sub>2</sub>AlC significantly increased Ti vacancy formation energy, suppressing the generation of Ti vacancies that are essential for Ti diffusion. In addition, the higher valence state of Nb<sup>5</sup><sup>+</sup> , compared to Zr<sup>4+</sup> constituent was found to be more effectively inhibiting the growth of non-protective TiO<sub>2</sub> film. This study elucidates the vacancy-dependent oxidation resistance of MAX phase coatings with solid solutions used for high-temperature fields.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"257 ","pages":"Article 113351"},"PeriodicalIF":7.4,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145154245","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}
Corrosion SciencePub Date : 2025-09-21DOI: 10.1016/j.corsci.2025.113344
Yanhong Chang , Junyang He , Feilong Yang , Wenjun Lu , Yawen Zhao , Ruiwen Li , Bin Su , Anyi Yin
{"title":"Unveiling the effects of oxidation on the microstructure and microchemistry of the oxygen-rich layer in a near-α Ti alloy","authors":"Yanhong Chang , Junyang He , Feilong Yang , Wenjun Lu , Yawen Zhao , Ruiwen Li , Bin Su , Anyi Yin","doi":"10.1016/j.corsci.2025.113344","DOIUrl":"10.1016/j.corsci.2025.113344","url":null,"abstract":"<div><div>A combination of electro-probe microanalysis, transmission electron microscopy and atom probe tomography was employed to investigate the effects of high-temperature oxidation on the gradient of the microstructure and microchemistry of the oxygen-rich layer on a near-α Ti alloy, Ti6242s, with a bimodal microstructure. α<sub>2</sub> precipitation occurred within the oxygen-rich layer, more pronounced inside the primary α grains than within the secondary α laths. The degree of α<sub>2</sub> precipitation increases with increasing oxygen content, and the critical amount of oxygen triggering α<sub>2</sub> is ∼3 at. % in the primary α grains, and even higher within the secondary α laths. These values are far greater than the reported value, ∼0.6–0.75 at. %, for the bulk alloy. Heterogeneous Al segregation was observed within the secondary α laths while bcc-β phase persisted even at the very surface where the oxygen content was highest. These findings indicate that oxygen ingress accelerates precipitation of α<sub>2</sub> at elevated temperature, and faster O diffusion along the dislocations and boundaries stimulates heterogeneous Al segregation. The lower degree of ordering within the secondary α laths was probably owing to the lower Si content and Al supersaturation.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"257 ","pages":"Article 113344"},"PeriodicalIF":7.4,"publicationDate":"2025-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145118245","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}
Corrosion SciencePub Date : 2025-09-21DOI: 10.1016/j.corsci.2025.113348
Bo Cheng , Guangbin Zheng , Dong Hou , Chengyun Ding , Qianqian Chu , Li Feng , Guosheng An , Xinjian Zhang , Lan Sun , Haoteng Sun , Wensheng Li
{"title":"Formation mechanisms of columnar/dense structure for Gd2Zr2O7 ceramics coatings with superior CMAS corrosion resistance","authors":"Bo Cheng , Guangbin Zheng , Dong Hou , Chengyun Ding , Qianqian Chu , Li Feng , Guosheng An , Xinjian Zhang , Lan Sun , Haoteng Sun , Wensheng Li","doi":"10.1016/j.corsci.2025.113348","DOIUrl":"10.1016/j.corsci.2025.113348","url":null,"abstract":"<div><div>Corrosion failure induced by calcium-magnesium-alumina-silicate (CMAS) deposits represents a predominant degradation mechanism in advanced thermal barrier coatings (TBCs) systems. In this study, a laser-based surface modification strategy was systematically investigated to reconfigure the microstructure of air plasma spray (APS) Gd₂Zr₂O₇ (GZO) coatings, with the aim of enhancing their resistance to CMAS corrosion. Numerical simulations revealed that laser power dictates microstructural transformations: a fully dense layer forms near the surface at 8 W; in contrast, at 12 W, honeycomb-like crystals are first nucleate at the bottom of the melt pool and grow upward, exhibiting a slight orientation bias in the laser scanning direction. Subsequently, a micro-columnar structure develops in the middle and upper regions of the melt pool. A parameter combination (laser power: 14 W, scan speed: 100 mm/s, line spacing: 0.02 mm, spot diameter: 0.5 mm) was selected to fabricate a hybrid surface texture, which consists of vertically aligned micro-columns (∼10 μm) atop a dense subsurface layer (∼15 μm). The resulting micro columnar and micro-nanocomposite structure conferred superior CMAS corrosion resistance, which is attributable to reduced CMAS wettability on the coating surface and limited CMAS infiltration into the coating interior. The synergistic effects of surface texturing and subsurface structural engineering provide new insights into the design of the corrosion-resistant TBCs via laser-induced phase-selective recrystallization.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"257 ","pages":"Article 113348"},"PeriodicalIF":7.4,"publicationDate":"2025-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145118249","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}
Corrosion SciencePub Date : 2025-09-20DOI: 10.1016/j.corsci.2025.113338
Zhi Wang , Shuohan Wang , Anthony Somers , Bob Varela , Mike Yongjun Tan
{"title":"New approaches to enhancing hydrogen permeation inhibition in pipeline steel through cationic surfactant-assisted adsorption of organic inhibitors and mechanistic understanding","authors":"Zhi Wang , Shuohan Wang , Anthony Somers , Bob Varela , Mike Yongjun Tan","doi":"10.1016/j.corsci.2025.113338","DOIUrl":"10.1016/j.corsci.2025.113338","url":null,"abstract":"<div><div>Hydrogen permeation inhibition using organic inhibitors is considered to be a promising approach to protecting pipeline steels from hydrogen embrittlement. However, the effectiveness of existing inhibitors remains insufficient for practical industrial applications. This study investigates the enhancement of hydrogen permeation inhibition in API X65 pipeline steel using new compounds synthesised through the combination of a cationic surfactant with environmentally friendly anionic organic inhibitors, specifically cetyltrimethylammonium (CTA<sup>+</sup>) with trans-4-hydroxycinnamate (4OHcinn<sup>-</sup>) and trans-4-ethoxycinnamate (4EtOcinn<sup>-</sup>). While the individual components, cetyltrimethylammonium bromide (CTAB) and sodium 4-hydroxycinnamate (Na-4OHcinn), exhibited low hydrogen permeation inhibition efficiency with values below 20 %, the synthesised compounds CTA-4OHcinn and CTA-4EtOcinn achieved significantly higher inhibition efficiencies of 65 % and 80 %, respectively. The inhibition efficiency enhancement mechanism was investigated using electrochemical and surface analytical techniques, including the advanced methods of local electrochemical impedance spectroscopy and atom probe tomography for probing inhibitor film coverage characteristics and nanometre scale three-dimensional element distribution. The addition of these inhibitors during hydrogen charging was found to result in the formation of compact surface inhibitor films, with the significantly improved hydrogen permeation inhibition efficiency attributed to micelle-assisted adsorption of anionic organic inhibitors. These results show the prospective of developing high efficiency hydrogen inhibition inhibitors by combining cationic surfactants with environmentally friendly anionic inhibitors to mitigate hydrogen ingress in steels.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"257 ","pages":"Article 113338"},"PeriodicalIF":7.4,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145154248","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}