Corrosion Science最新文献_第9页

Mechanism of corrosion-creep crack initiation of nickel-base alloy in 650°C/20 MPa supercritical CO2 650℃/20 MPa超临界CO2中镍基合金腐蚀蠕变裂纹萌生机理

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-09-18 DOI: 10.1016/j.corsci.2025.113329

Liujie Yang , Xingyu Feng , Pengshuai Liu , En-Hou Han , Wenjun Kuang

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Revealing the atomic-scale mechanism of organic corrosion inhibitors in suppressing anodic dissolution of metals via ab initio molecular dynamics and metadynamics simulations: A case study of sorbitol on aluminum 通过从头算分子动力学和元动力学模拟揭示有机缓蚀剂抑制金属阳极溶解的原子尺度机理：以山梨醇对铝的吸附为例

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-09-18 DOI: 10.1016/j.corsci.2025.113326

Xin Guo , Lingwei Ma , Xiaoqi Wang , Bingxiao Shi , Zhongheng Fu , Di Liu , Jiuzhou Zhao , Lin Lu , Dawei Zhang

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AI-driven discovery of high-performance corrosion inhibitors using a BERT-GPT framework for molecular generation 使用BERT-GPT框架进行分子生成的高性能缓蚀剂的ai驱动发现

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-09-17 DOI: 10.1016/j.corsci.2025.113327

Haiyan Gong , Lingwei Ma , Diandian Liu , Dawei Zhang

{"title":"AI-driven discovery of high-performance corrosion inhibitors using a BERT-GPT framework for molecular generation","authors":"Haiyan Gong , Lingwei Ma , Diandian Liu , Dawei Zhang","doi":"10.1016/j.corsci.2025.113327","DOIUrl":"10.1016/j.corsci.2025.113327","url":null,"abstract":"<div><div>The discovery of high-efficiency corrosion inhibitors is constrained by the structural diversity of existing molecular entities. This study introduces a framework that integrates BERT and GPT models to predict, screen, and generate molecules with potential corrosion inhibiting properties. Predictive models for inhibition efficiency (IE) and toxicity on carbon steel surfaces in 1 M HCl environments were built by utilizing chemical language embeddings and molecular descriptors. The screening of the PubChem library identified 1,336,971 candidate molecules with a predicted IE greater than 90 % at a 1 mM concentration and a predicted LD50 (lethal dose for 50 % of test animals) exceeding 2000 mg/kg (indicating low acute toxicity). Scaffold analysis highlighted an enrichment of critical scaffold, particularly 6 imidazole scaffolds in conjunction with property constraints (IE = 90 %, LD50 = 1000 mg/kg), informed the conditional generation of molecules using MolGPT. A total of 310,962 valid molecules were generated, with 25.17 % (78,258 molecules) satisfying all specified conditions, which is much higher than the hit ratio (4.08 %) of screening from PubChem database. This study demonstrates an AI-driven molecular generation for corrosion inhibitor discovery.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"257 ","pages":"Article 113327"},"PeriodicalIF":7.4,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145108987","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

Corrosion degradation and interface behaviour of magnetron sputtered NiAl coatings doped with Zr, Hf, and Cr 掺杂Zr、Hf和Cr的磁控溅射NiAl涂层的腐蚀降解和界面行为

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-09-17 DOI: 10.1016/j.corsci.2025.113324

Shen Tao , Hui Peng , Hongbo Guo

{"title":"Corrosion degradation and interface behaviour of magnetron sputtered NiAl coatings doped with Zr, Hf, and Cr","authors":"Shen Tao , Hui Peng , Hongbo Guo","doi":"10.1016/j.corsci.2025.113324","DOIUrl":"10.1016/j.corsci.2025.113324","url":null,"abstract":"<div><div>In this work, NiAl-based coatings doped with optimised Zr, Hf, and Cr content are deposited via magnetron sputtering and evaluated for hot corrosion performance. Systematic high-temperature corrosion tests and microstructural analyses reveals that the corrosion resistance and oxide scale adherence of the coatings are strongly dependent on the dopant type and content. Among the single-element doped coatings, NiAlZr exhibits the highest corrosion resistance but suffers from poor scale adhesion, whereas NiAlCr shows the lowest corrosion resistance yet excellent adhesion due to the formation of porous internal and external oxide layers. NiAlHf coating demonstrates intermediate performance. Mechanistically, Zr/ZrO<sub>2</sub> particles effectively suppress the β→γ/γ′ phase transformation and stabilise the grain structure, while HfO<sub>2</sub> promotes interfacial transitions that improves scale anchoring. The presence of Cr will reduce the lattice mismatch but potentially disrupted γ′ ordering. Furthermore, surface wettability and roughness are observed to govern salt mist deposition behaviour, with smoother, more hydrophobic coatings (NiAlZr and NiAlHf) resisting salt accumulation. Notably, a significant synergistic effect between Zr and Hf identified in co-doped NiAlZrHf coating, which outperforms the single-doped counterparts. These findings offer insights into compositional tailoring strategies for enhancing hot corrosion resistance in advanced aluminide coatings.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"257 ","pages":"Article 113324"},"PeriodicalIF":7.4,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145099696","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

Impact of salt purification and flow conditions on SS316H corrosion in molten NaF–KF–UF4 盐净化和流动条件对熔液中SS316H腐蚀的影响

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-09-17 DOI: 10.1016/j.corsci.2025.113325

Jaewoo Park, Jinsuo Zhang

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Effect of boron segregation on hydrogen-induced grain boundary embrittlement in CoCrFeNi medium-entropy alloys 硼偏析对CoCrFeNi中熵合金氢致晶界脆化的影响

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-09-15 DOI: 10.1016/j.corsci.2025.113320

Hyun Jeong , Ji Yoon Jeong , Soo Yeol Lee , KenHee Ryou , Pyuck-Pa Choi , Yakai Zhao , Siyuan Wei , Pei Wang , Dong-Hyun Lee

{"title":"Effect of boron segregation on hydrogen-induced grain boundary embrittlement in CoCrFeNi medium-entropy alloys","authors":"Hyun Jeong , Ji Yoon Jeong , Soo Yeol Lee , KenHee Ryou , Pyuck-Pa Choi , Yakai Zhao , Siyuan Wei , Pei Wang , Dong-Hyun Lee","doi":"10.1016/j.corsci.2025.113320","DOIUrl":"10.1016/j.corsci.2025.113320","url":null,"abstract":"<div><div>Hydrogen embrittlement (HE) degrades the mechanical performance of metals in hydrogen environments, posing challenges to the safety and reliability of hydrogen energy systems. Although face-centered cubic (FCC) high-/medium-entropy alloys (H/MEAs) show promise due to their intrinsic HE resistance, intergranular failure still occurs under extreme conditions. This study investigated the effect of boron doping on hydrogen-induced grain boundary (GB) embrittlement in CoCrFeNi MEAs under as-cast conditions. Approximately 80 wt. ppm boron was added without altering the microstructure of the alloy. <em>In</em>-<em>situ</em> hydrogen charging tensile tests revealed that boron doping significantly reduced ductility loss, with the HE index decreasing from ∼82 % to ∼32 %, and shifted the fracture mode from intergranular to transgranular. Atom probe tomography confirmed selective boron segregation at the GBs. Thermal desorption spectroscopy and Ag decoration experiments demonstrated that boron suppressed hydrogen trapping at GBs by occupying interstitial sites. Spherical nanoindentation showed decreased critical shear stress for GB slip transmission in the boron-doped alloy, suggesting enhanced GB plasticity. These combined effects of strengthened GB cohesion, reduced hydrogen accumulation, and improved slip transmission synergistically contributed to the enhanced HE resistance of the boron-doped CoCrFeNi MEA.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"257 ","pages":"Article 113320"},"PeriodicalIF":7.4,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145099692","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

Assessment of carbon steel and corrosion resistant alloy corrosion in geothermal environments containing sulphuric acid 碳钢和耐腐蚀合金在含硫酸地热环境中的腐蚀评价

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-09-15 DOI: 10.1016/j.corsci.2025.113319

Joseph Thevakumar , Joshua Owen , Kathleen Purnell , Evgeny Barmatov , Richard Barker

{"title":"Assessment of carbon steel and corrosion resistant alloy corrosion in geothermal environments containing sulphuric acid","authors":"Joseph Thevakumar , Joshua Owen , Kathleen Purnell , Evgeny Barmatov , Richard Barker","doi":"10.1016/j.corsci.2025.113319","DOIUrl":"10.1016/j.corsci.2025.113319","url":null,"abstract":"<div><div>This work focusses on understanding corrosion severity and pipeline material performance within model geothermal sulphuric acid (H<sub>2</sub>SO<sub>4</sub>)-containing environments. A tantalum-lined high pressure/high temperature autoclave is used to assess the corrosion behaviour of N80 carbon steel compared to 13 Cr and 22 Cr duplex stainless steel when exposed to H<sub>2</sub>SO<sub>4</sub> solutions between a pH of 2–4, and at a temperature of 150 °C. Significant increases in solution pH were observed during 20-hour exposure experiments, resulting from acid consumption due to ongoing corrosion reactions. The resulting pH shift led to a notable reduction in corrosion rates over time, creating uncertainty when assessing long-term material degradation under variable environmental conditions. To address this uncertainty, corrosion rates were analysed in the early stages of exposures, enabling a reliable correlation between temperature, pH and metal composition. Linear polarisation resistance (LPR) measurements revealed that corrosion of carbon steel was primarily influenced by solution acidity, with temperature playing a secondary role. A comparative analysis of corrosion performance revealed that uniform and pitting corrosion rates decreased in the following order: carbon steel > 13 Cr stainless steel > 22 Cr duplex stainless steel. These results offer valuable insights into material selection and corrosion mechanisms relevant to geothermal energy applications.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"257 ","pages":"Article 113319"},"PeriodicalIF":7.4,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145099693","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

Corrosion behaviors of Fe50Mn30Co10Cr10 high-entropy alloy wires with different processing states in various aqueous environments 不同加工状态下Fe50Mn30Co10Cr10高熵合金丝在不同水环境中的腐蚀行为

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-09-15 DOI: 10.1016/j.corsci.2025.113318

Xiaoyang Zhang , Jinchen Yang , Pengya Lei , Ruifeng Dong , Hua Hou , Yuhong Zhao

{"title":"Corrosion behaviors of Fe50Mn30Co10Cr10 high-entropy alloy wires with different processing states in various aqueous environments","authors":"Xiaoyang Zhang , Jinchen Yang , Pengya Lei , Ruifeng Dong , Hua Hou , Yuhong Zhao","doi":"10.1016/j.corsci.2025.113318","DOIUrl":"10.1016/j.corsci.2025.113318","url":null,"abstract":"<div><div>The electrochemical corrosion behavior and passive film characteristics of a low-stacking-fault-energy high-entropy alloy (HEA) cold-drawn wire with the composition of Fe<sub>50</sub>Mn<sub>30</sub>Co<sub>10</sub>Cr<sub>10</sub> were studied in acidic, alkaline, and saline solutions with three different processing states: deformation, recovery, and recrystallization. In NaCl solutions, the cold-drawn sample exhibits the best corrosion resistance, attributed to its high dislocation density and the formation of stable Mn-rich passive films. In contrast, the recrystallized sample shows the highest corrosion susceptibility. In low concentration H<sub>2</sub>SO<sub>4</sub> solution, the cold-drawn sample demonstrates the best corrosion resistance, with high dislocation density enhancing passive film stability. However, as the H<sub>2</sub>SO<sub>4</sub> concentration increases to 1 M, corrosion resistance deteriorates, with the recrystallized sample showing the best performance. At 2 M H<sub>2</sub>SO<sub>4</sub>, the recovered sample performs relatively better. X-ray photoelectron spectroscopy (XPS) analysis reveals that the Cr<sub>2</sub>O<sub>3</sub> content on the alloy surface is influenced by both the microstructure and acid concentration, which together regulate the competition between oxidation and dissolution kinetics. In alkaline solutions, corrosion resistance improves with increasing NaOH concentration, with the cold-drawn sample exhibiting the best performance due to enhanced passivation stability. This study establishes a framework for tailoring HEA wire processing strategies to achieve enhanced durability in diverse corrosive environments by elucidating the critical relationships between microstructure, processing history, and corrosion resistance.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"257 ","pages":"Article 113318"},"PeriodicalIF":7.4,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145099694","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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The performance and mechanisms of imidazoline phosphonate inhibitors in mitigating sulfate-reducing bacteria-induced under deposit corrosion 咪唑啉膦酸盐抑制剂抑制沉积物腐蚀中硫酸盐还原菌诱导的性能及机理

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-09-13 DOI: 10.1016/j.corsci.2025.113317

Ting Xu, Min Du, Gengxin Li

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Corrigendum to “Effects of Cu@Sn@Ag core-shell particles on microstructure, corrosion and mechanical properties of SAC305 solder joint” [Corros. Sci. 257 (2025) 113270] “Cu@Sn@Ag芯壳颗粒对SAC305焊点显微组织、腐蚀和力学性能的影响”的更正[腐蚀]。科学通报。257 (2025)113270]

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-09-12 DOI: 10.1016/j.corsci.2025.113302

Jinghui Fan , Sifan Tan , Guangyu Zhu , Langfeng Zhu , Wenxing Luo , Jue Wang , Baowen Fu , Chao Qiang , Wenjing Chen , Xiaowu Hu , Tao Xu , Xiongxin Jiang

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