Corrosion Science最新文献_第8页

Impact of droplet conditions on corrosion inhibitor mechanisms: A case study on small azole molecules 液滴条件对缓蚀剂机理的影响：以小唑分子为例

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-09-20 DOI: 10.1016/j.corsci.2025.113340

Chathumini Samarawickrama , Qiushi Deng , Philipp Eiden , Paul White , Patrick Keil , Ivan Cole

{"title":"Impact of droplet conditions on corrosion inhibitor mechanisms: A case study on small azole molecules","authors":"Chathumini Samarawickrama , Qiushi Deng , Philipp Eiden , Paul White , Patrick Keil , Ivan Cole","doi":"10.1016/j.corsci.2025.113340","DOIUrl":"10.1016/j.corsci.2025.113340","url":null,"abstract":"<div><div>This study investigates the differences in corrosion inhibitor performance between droplet and bulk volumes using a novel electrochemical cell setup that accommodates both environments. Steel and galvanised steel, widely used in the automotive and construction industries, face significant corrosion challenges, with droplet corrosion presenting unique mechanisms compared to bulk volume corrosion. In droplet corrosion, oxygen gradients form due to oxygen depletion at the droplet centre, promoting uniform or localised corrosion based on factors such as salt concentration and droplet size. Despite its relevance, droplet corrosion remains understudied, particularly in the context of inhibitor performance. This study addresses the gap by employing a rapid electrochemical testing method and a database with a wide range of azole derivative structures to evaluate how corrosion inhibitor structures and the working mechanism of corrosion inhibitors affect corrosion protection in varying droplet volumes. Findings from this research are anticipated to enhance corrosion mitigation strategies and promote more effective use of inhibitors in real-world applications.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"257 ","pages":"Article 113340"},"PeriodicalIF":7.4,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145154249","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}

引用次数: 0

Repassivation of stainless steels: A unifying quantitative framework 不锈钢的再钝化：一个统一的定量框架

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-09-20 DOI: 10.1016/j.corsci.2025.113342

A. Shehi, S. Choudhary, R.G. Kelly

{"title":"Repassivation of stainless steels: A unifying quantitative framework","authors":"A. Shehi, S. Choudhary, R.G. Kelly","doi":"10.1016/j.corsci.2025.113342","DOIUrl":"10.1016/j.corsci.2025.113342","url":null,"abstract":"<div><div>This study presents a unifying quantitative framework for understanding the repassivation process, connecting the values of E<sub>rp</sub> to key parameters such as pH, (i⋅x)<sub>crit</sub>, anodic and cathodic kinetics, i<sub>c</sub>/i<sub>a</sub>, <em>f</em>, and electrode-electrolyte interfacial chemistry. The framework integrates potentiostatic, fast potentiodynamic, and galvanodynamic experiments with thermodynamic modeling using a mixed solvent thermodynamic database. Using SS316L and SS304 in 0.6 M NaCl as exemplars, the study demonstrates that repassivation potential decreases with pit depth until it plateaus, with SS316L showing a potential of −0.15 to −0.165 V vs. SCE and SS304 at −0.18 to −0.2 V vs. SCE. The differences in repassivation potential between the alloys are attributed to two roles the Mo in SS316L plays, namely suppressing anodic kinetics and accelerating cathodic kinetics. The relative rate of local cathodic kinetics within the pit are crucial for repassivation via CrOOH precipitation, with experimental i<sub>c</sub>/i<sub>a</sub> values of 2–4.5 % for SS316L and <span><math><mrow><mo>≤</mo><mspace></mspace></mrow></math></span>1 % for SS304 and up to 9.5–10.5 % required theoretically at high fractions of saturation. The (i⋅x)<sub>crit</sub> was found to be similar for both alloys, approximately 0.32 A/m<sup>2</sup>, with <em>f</em> ranging between 0.35 and 0.4. Anodic and cathodic kinetics were found to be independent of the pit depth at critical repassivation conditions.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"258 ","pages":"Article 113342"},"PeriodicalIF":7.4,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145264108","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}

引用次数: 0

Effect of Si network continuity on the localized corrosion of AlSi10Mg alloy fabricated by selective laser melting Si网络连续性对选择性激光熔化AlSi10Mg合金局部腐蚀的影响

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-09-19 DOI: 10.1016/j.corsci.2025.113336

Futai Zhang , Zhe Liu , Chengcheng Pan , Yida Deng , Da-Hai Xia , Bernard Tribollet

{"title":"Effect of Si network continuity on the localized corrosion of AlSi10Mg alloy fabricated by selective laser melting","authors":"Futai Zhang , Zhe Liu , Chengcheng Pan , Yida Deng , Da-Hai Xia , Bernard Tribollet","doi":"10.1016/j.corsci.2025.113336","DOIUrl":"10.1016/j.corsci.2025.113336","url":null,"abstract":"<div><div>This paper aims to investigate the influence mechanism of silicon (Si) network morphology on the localized corrosion behavior of AlSi10Mg alloy prepared by selective laser melting (SLM) in 3.5 wt% NaCl solution. Four different Si microstructures, i.e., coarse Si network, fine Si network, broken Si network, and isolated Si particles, were regulated through stress relief annealing at 200 °C and 300 °C (designated as SR200 and SR300 respectively), and T6 heat treatment. Microstructure observation, electrochemical testing, corrosion morphology characterization, and scanning Kelvin probe force microscopy (SKPFM) are used to identify the corrosion mechanism. The results show that heat treatment significantly changes the morphology of Si microstructure. The SLM-AlSi10Mg alloy mainly undergoes pitting corrosion in NaCl solution, and pitting preferentially occurs at the molt pool boundary (MPB). The oxide film on the alloy surface has a bilayer structure: inner dense Al<sub>2</sub>O<sub>3</sub> layer and outer porous Al(OH)<sub>3</sub> layer. A more uniform and dense oxide film with stronger protectiveness is formed on Al matrix with networked Si. The inner dense layer on Al matrix with the particulate Si is thinner than with the Si network, resulting in weakened protectiveness. SKPFM analysis reveals that the potential difference between Si and Al matrix increases with the coarsening of the Si network, and the MPB becomes a preferential corrosion area due to the larger potential difference. This study provides a theoretical basis for optimizing the corrosion resistance of SLM-AlSi10Mg alloy.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"257 ","pages":"Article 113336"},"PeriodicalIF":7.4,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145118250","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}

引用次数: 0

Improving the resistance of exfoliation corrosion and stress corrosion cracking for high-strength aluminum alloy via tailored nanoparticles 通过定制纳米颗粒提高高强铝合金的抗剥落腐蚀和应力腐蚀开裂能力

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-09-19 DOI: 10.1016/j.corsci.2025.113335

Yifu Jiang , Siyang Xu , Jinhua Zhou , Xiulu Zhang , Xiaowei Yin , Jie Hao

{"title":"Improving the resistance of exfoliation corrosion and stress corrosion cracking for high-strength aluminum alloy via tailored nanoparticles","authors":"Yifu Jiang , Siyang Xu , Jinhua Zhou , Xiulu Zhang , Xiaowei Yin , Jie Hao","doi":"10.1016/j.corsci.2025.113335","DOIUrl":"10.1016/j.corsci.2025.113335","url":null,"abstract":"<div><div>High-strength aluminum alloys have emerged as a focal point in materials research due to their exceptional potential for sustainable industrial applications. This study introduces a pre-aging and electric pulse treatment (EPT) following hot compression with 100 ℃ dies to achieve the balance of mechanical properties and corrosion resistance via tailored nanoparticles. Our findings demonstrate that EPT accelerated precipitation process due to its thermal effect and athermal effect. The specimen after EPT exhibited the excellent corrosion resistance, and the thick oxide layer, uniformly distributed η´ and large-sized grain boundary precipitation (GBP) with high Cu content enable to weaken the anodic dissolution, thus decreasing the corrosion rate. Comparing to the specimens in baking treatment condition, the corrosion morphology changes from intergranular corrosion (IGC)/IGC+local IGC to weak local IGC. Besides, the increasing die temperature and the application of EPT promote the improvement of stress corrosion cracking (SCC). The formation of T phase induced by EPT causes the hydrogen repartitioning, significantly enhancing the SCC resistance through decreasing the H accumulation at vulnerable microstructural sites.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"257 ","pages":"Article 113335"},"PeriodicalIF":7.4,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145099615","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}

引用次数: 0

Atmospheric corrosion of Ni-advanced weathering steels in a marine atmosphere of moderate salinity: 10 years of exposure ni -高级耐候钢在中等盐度海洋大气中的大气腐蚀：暴露10年

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-09-19 DOI: 10.1016/j.corsci.2025.113322

I. Díaz , I. Llorente , V. Rojo , J.F. Marco , J.A. Jiménez , D. de la Fuente

{"title":"Atmospheric corrosion of Ni-advanced weathering steels in a marine atmosphere of moderate salinity: 10 years of exposure","authors":"I. Díaz , I. Llorente , V. Rojo , J.F. Marco , J.A. Jiménez , D. de la Fuente","doi":"10.1016/j.corsci.2025.113322","DOIUrl":"10.1016/j.corsci.2025.113322","url":null,"abstract":"<div><div>Three Ni-advanced weathering steels, with nominal nickel contents of 1 %, 2 %, and 3 wt%, respectively, along with a copper-bearing steel, all manufactured using the electroslag remelting technique, were exposed for 10 years to the pure marine atmosphere of Cabo Vilano in north-west Spain (Camariñas, A Coruña), with an average chloride ion deposition rate of 20.4 mg/m²day. The corrosion curve as a function of exposure time was obtained, yielding actual values of the exponent n from the power-law model. Rusts formed on the steels were quantitatively analyzed using the Rietveld refinement method applied to X-ray diffraction (XRD) data, Mössbauer spectroscopy, SEM/EDS, and BET surface area measurements. The crystallite size of the iron oxyhydroxides present was determined from XRD line broadening using the double-Voigt approach, and the average particle size was also estimated by Mössbauer spectroscopy. The corrosion rate decreased with increasing nickel content in the steel composition, although no significant differences were observed beyond 2 wt% Ni. The amount of goethite quantified by Mössbauer spectroscopy was higher in the nickel-containing steels compared to the values obtained by XRD. Moreover, the amount of superparamagnetic (nanosized) goethite determined by Mössbauer spectroscopy also increased with nickel content.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"257 ","pages":"Article 113322"},"PeriodicalIF":7.4,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145154253","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}

引用次数: 0

The roles of CO2 and water vapour on the high temperature corrosion of a type 430 stainless steel as an interconnect of bio-gas fuel intermediate temperature SOFCs 二氧化碳和水蒸气对430型不锈钢作为生物气体燃料中温sofc互连的高温腐蚀的作用

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-09-18 DOI: 10.1016/j.corsci.2025.113330

Thammaporn Thublaor , Padungaut Srihathai , Watcharapon Tengprasert , Grid Suparapinyopapkul , Jiayi Yan , Zhigang Yang , Walairat Chandra-ambhorn , Somrerk Chandra-ambhorn

引用次数: 0

Enhancing the corrosion resistance of low-density steels via Al-rich oxide film formation by grain size optimization 优化晶粒尺寸形成富铝氧化膜以提高低密度钢的耐蚀性

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-09-18 DOI: 10.1016/j.corsci.2025.113331

Guang Yang , Li Wang , Xiaoqian Fu , Yucheng Ji , Wenquan Cao , Cunyu Wang , Jianxiong Liang , Chaofang Dong

{"title":"Enhancing the corrosion resistance of low-density steels via Al-rich oxide film formation by grain size optimization","authors":"Guang Yang , Li Wang , Xiaoqian Fu , Yucheng Ji , Wenquan Cao , Cunyu Wang , Jianxiong Liang , Chaofang Dong","doi":"10.1016/j.corsci.2025.113331","DOIUrl":"10.1016/j.corsci.2025.113331","url":null,"abstract":"<div><div>Fe-Mn-Al-C low-density steels have gained widely attention in recent years due to its low density and superior mechanical properties. This study investigated the effects of grain size on oxide film formation and corrosion behavior. Low-density steels with various grain sizes (8.7–32 μm) were prepared by adjusting the solution treatment temperature between 950 ℃ and 1150 ℃. The results indicate that as the solution treatment temperature increases, the grain size increases, and the grain boundary density decreases. The fine-grained sample (S950) rapidly forms an Al-rich oxide film. The film thickness reaches 25.2 ± 1.2 nm, with a low defect density (0.68 ×10<sup>21</sup>/cm<sup>3</sup> and 0.26 ×10<sup>21</sup>/cm<sup>3</sup>) and the lowest corrosion rate (0.160 mm/y). Conversely, the coarse-grained sample (S1150), characterized by a grain size of 32 μm, forms a thinner oxide film (18 ± 0.9 nm) with a reduced Al content (90.17 at% to 69.91 at%) and a higher defect density, and the corrosion rate increases by 43 %. Further analysis reveals that smaller grain sizes and high-density grain boundaries promote the preferential dissolution of elements such as Al at the grain boundaries. This drives the formation of a uniform and stable oxide film. The coarse-grained structure results in discontinuous oxide film growth due to sparse grain boundaries, which increases the Fe/Mn content, and diminishes the corrosion resistance of steels.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"257 ","pages":"Article 113331"},"PeriodicalIF":7.4,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145108989","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}

引用次数: 0

Theoretical passivation limits of binary aluminum-lithium alloys in oxygen and fluorine environments 二元铝锂合金在氧和氟环境中的理论钝化极限

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-09-18 DOI: 10.1016/j.corsci.2025.113328

Caleb N. Harper , Steven F. Son

{"title":"Theoretical passivation limits of binary aluminum-lithium alloys in oxygen and fluorine environments","authors":"Caleb N. Harper , Steven F. Son","doi":"10.1016/j.corsci.2025.113328","DOIUrl":"10.1016/j.corsci.2025.113328","url":null,"abstract":"<div><div>The theoretical passivation of binary aluminum-lithium alloys (0–100 wt% Li) was evaluated using a Pilling-Bedworth ratio analysis with a lithium diffusion model under various oxygen and fluorine environments near room temperature. Passivation was found to be dynamic, governed by atmospheric composition, surface reaction kinetics, alloy microstructure, and internal lithium diffusion. Water vapor reactions forming hydrates are particularly detrimental to passivation in both oxygen and fluorine environments. These theoretical calculations suggest that alloys with low lithium content (< 5 wt%) may remain passivated in oxygen-containing atmospheres for extended periods near room temperature. Experimental validation of these passivation models was conducted by reacting both passivated and un-passivated Al-Li alloy powders with water to measure hydrogen gas evolution. Results revealed a sharp increase in reactivity near 5 wt% Li, consistent with a percolation threshold of increased δ’- and δ-phase grain connectivity. Below this threshold, passivated alloys consumed < 10 % of their active metal content. Above it, passivation was largely ineffective, and nearly all the active metal content was consumed. These findings confirm that passivation strategies using ambient air are only effective below a critical lithium concentration and suggest fluorine-based or similar treatments may be required to protect high-Li-content alloys.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"257 ","pages":"Article 113328"},"PeriodicalIF":7.4,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145109632","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}

引用次数: 0

Chromium segregation-induced oxide evolution in Ni-10Cr alloys during high-temperature oxidation Ni-10Cr合金高温氧化过程中铬偏析诱导的氧化物演化

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-09-18 DOI: 10.1016/j.corsci.2025.113332

Shuai Xiao , Ya Cai , Xiao Peng , Jianmin Chen , Yujing Liu , Canying Cai , Xiaochun Liu , Guangwen Zhou

{"title":"Chromium segregation-induced oxide evolution in Ni-10Cr alloys during high-temperature oxidation","authors":"Shuai Xiao , Ya Cai , Xiao Peng , Jianmin Chen , Yujing Liu , Canying Cai , Xiaochun Liu , Guangwen Zhou","doi":"10.1016/j.corsci.2025.113332","DOIUrl":"10.1016/j.corsci.2025.113332","url":null,"abstract":"<div><div>The oxidation behavior of a Ni-10(wt%)Cr alloy under high-temperature O<sub>2</sub> conditions is investigated using transmission electron microscopy and first-principles calculations. Results reveal that chromium segregation plays a central role in driving the evolution of complex oxide phase structures during oxidation. At low Cr concentrations, Cr preferentially segregates to NiO grain boundaries or internal pores, substituting for Ni atoms and forming Ni(Cr)O solid solutions. As Cr content increases, enhanced diffusion promotes Cr penetration into the NiO lattice, leading to the formation of multiphase oxide structures. First-principles modeling corroborates these findings: at low Cr concentrations, Cr atoms favor surface and grain-boundary segregation, while higher concentrations lead to Cr aggregation within the NiO bulk. The integrated experimental-theoretical approach provides atomistic insights into Cr-mediated mass transport mechanisms during alloy oxidation and offers valuable guidance for controlling oxide growth kinetics and phase stability in Ni-Cr alloys, with implications for improving oxidation resistance in high-temperature structural applications.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"257 ","pages":"Article 113332"},"PeriodicalIF":7.4,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145154414","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}

引用次数: 0

Transpassive-repassivation process of Ni-base superalloys: The role of hidden subsurface alloy layer 镍基高温合金的转被动再钝化过程：隐性亚表面合金层的作用

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-09-18 DOI: 10.1016/j.corsci.2025.113321

Xiaoqi Yue , Alfred Larsson , Dihao Chen , Andrea Grespi , Giuseppe Abbondanza , Ulrich Lienert , Zoltan Hegedüs , Arno Jeromin , Thomas F. Keller , Mattia Scardamaglia , Andrey Shavorskiy , Chaofang Dong , Edvin Lundgren , Jinshan Pan

{"title":"Transpassive-repassivation process of Ni-base superalloys: The role of hidden subsurface alloy layer","authors":"Xiaoqi Yue , Alfred Larsson , Dihao Chen , Andrea Grespi , Giuseppe Abbondanza , Ulrich Lienert , Zoltan Hegedüs , Arno Jeromin , Thomas F. Keller , Mattia Scardamaglia , Andrey Shavorskiy , Chaofang Dong , Edvin Lundgren , Jinshan Pan","doi":"10.1016/j.corsci.2025.113321","DOIUrl":"10.1016/j.corsci.2025.113321","url":null,"abstract":"<div><div>Passivity refers to spontaneous formation of a passive film on the surface of metals. High stability of the passive film on advanced alloys relies on the repassivation ability of the alloys in corrosive environments. Two Ni-base superalloys (Ni-22Cr-9Mo-5Fe-2Nb and Ni-18Cr-3Mo-20Fe-5Nb) are studied to elucidate the mechanism of repassivation through a combination of multimodal in-situ synchrotron X-ray measurements, electrochemical measurements, and first principles calculations. The synchrotron X-ray analyses enabled in-situ probing of the passive film and the hidden subsurface alloy layer. The results reveal chemical and structural evolutions of both the passive film and the underlying subsurface alloy layer under transpassive condition. The first principles calculations demonstrate a crucial role of the subsurface alloy layer in the repassivation of the alloys. Upon passivity breakdown at high electrochemical potentials, the passive film rich in Cr oxide becomes highly defective with vacancies, and metal dissolution leads to generation of vacancies (mainly Ni) in the subsurface alloy layer. This promotes repassivation process by enhanced outward Cr diffusion strengthening the metal bond (more Cr-Ni bonds) in the subsurface alloy layer and, together with the enrichment of high valence Mo- and Nb-oxides in the passive film, lead to repassivation when the high potential is removed, which is different from Fe-rich alloys.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"257 ","pages":"Article 113321"},"PeriodicalIF":7.4,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145099609","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}

引用次数: 0