npj Materials Degradation最新文献

Effect of microstructure on hydrogen permeation and trapping in natural gas pipeline steels. 微观组织对天然气管道钢氢渗透和捕集的影响。

IF 6.6 2区材料科学

npj Materials Degradation Pub Date : 2025-01-01 Epub Date: 2025-06-14 DOI: 10.1038/s41529-025-00615-5

Aminul Islam, Qidong Li, Emma Storimans, Kay Ton, Tahrim Alam, Zoheir N Farhat

{"title":"Effect of microstructure on hydrogen permeation and trapping in natural gas pipeline steels.","authors":"Aminul Islam, Qidong Li, Emma Storimans, Kay Ton, Tahrim Alam, Zoheir N Farhat","doi":"10.1038/s41529-025-00615-5","DOIUrl":"10.1038/s41529-025-00615-5","url":null,"abstract":"This study examines hydrogen permeation and trapping in three types of natural gas pipeline steels from different decades in Canada-modern, vintage, and legacy steels. Electrochemical permeation experiments were conducted to measure the diffusion coefficient, subsurface concentration, and trap density of hydrogen. The results were analyzed to evaluate the susceptibility of these steels to hydrogen embrittlement and to understand the effects of hydrogen on their mechanical properties. Vintage steel exhibited 50% higher steady-state permeation current and 97% greater effective diffusivity compared to modern steel, while legacy steel showed intermediate values. Hydrogen diffusion increased with grain size and pearlite content but decreased with dislocation density. Modern steel demonstrated the highest resistance to hydrogen permeation due to its finer grain structure and higher dislocation density. This study provides essential insights into the diffusion behavior and trapping mechanisms of hydrogen in natural gas pipeline steels, enhancing the understanding of material performance under hydrogen exposure.","PeriodicalId":19270,"journal":{"name":"npj Materials Degradation","volume":"9 1","pages":"70"},"PeriodicalIF":6.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12167172/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144310198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A mesoscale phase-field model of intergranular liquid lithium corrosion of ferritic/martensitic steels. 铁素体/马氏体钢晶间液态锂腐蚀的中尺度相场模型。

IF 6.6 2区材料科学

npj Materials Degradation Pub Date : 2025-01-01 Epub Date: 2025-06-10 DOI: 10.1038/s41529-025-00616-4

Alexandre Lhoest, Sasa Kovacevic, Duc Nguyen-Manh, Joven Lim, Emilio Martínez-Pañeda, Mark R Wenman

{"title":"A mesoscale phase-field model of intergranular liquid lithium corrosion of ferritic/martensitic steels.","authors":"Alexandre Lhoest, Sasa Kovacevic, Duc Nguyen-Manh, Joven Lim, Emilio Martínez-Pañeda, Mark R Wenman","doi":"10.1038/s41529-025-00616-4","DOIUrl":"10.1038/s41529-025-00616-4","url":null,"abstract":"A phase-field model is developed to simulate intergranular corrosion of ferritic/martensitic steels exposed to liquid lithium. The chromium concentration of the material is used to track the mass transport within the metal and liquid (corrosive) phase. The framework naturally captures intergranular corrosion by enhancing the diffusion of chromium along grain boundaries relative to the grain bulk with no special treatment for the corrosion front evolution. The formulation applies to arbitrary 2D and 3D polycrystalline geometries. The framework reproduces experimental measurements of weight loss and corrosion depth for a 9 wt% Cr ferritic/martensitic steel exposed to static lithium at 600 °C. A sensitivity analysis, varying near-surface grain density, grain size, and chromium depletion thickness, highlights the microstructural influence in the corrosion process. Moreover, the significance of saturation is considered and evaluated. Simulation results show that near-surface grain density is a deciding factor, whereas grain size dictates the susceptibility to intergranular corrosion.","PeriodicalId":19270,"journal":{"name":"npj Materials Degradation","volume":"9 1","pages":"68"},"PeriodicalIF":6.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12151869/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144285813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Insights into long term glass corrosion mechanisms from the Ballidon experiment. balllidon实验对长期玻璃腐蚀机制的洞察。

IF 6.6 2区材料科学

npj Materials Degradation Pub Date : 2025-01-01 Epub Date: 2025-03-17 DOI: 10.1038/s41529-025-00571-0

C L Thorpe, A J Fisher, G Manifold, S Creasey-Gray, C M Jackson, B Stone, C L Corkhill, C Boothman, J R Lloyd, R J Hand

引用次数: 0

Evaluating biocide efficacy in mixed-species biofilms: insights from a dual anaerobic biofilm reactor. 评估混合物种生物膜的杀菌剂效果：来自双厌氧生物膜反应器的见解。

IF 7.6 2区材料科学

npj Materials Degradation Pub Date : 2025-01-01 Epub Date: 2025-07-31 DOI: 10.1038/s41529-025-00628-0

Liam Jones, Niall Hanrahan, Maria Salta, Torben Lund Skovhus, Kathryn Thomas, Timothy Illson, Julian Wharton, Jeremy Webb

{"title":"Evaluating biocide efficacy in mixed-species biofilms: insights from a dual anaerobic biofilm reactor.","authors":"Liam Jones, Niall Hanrahan, Maria Salta, Torben Lund Skovhus, Kathryn Thomas, Timothy Illson, Julian Wharton, Jeremy Webb","doi":"10.1038/s41529-025-00628-0","DOIUrl":"10.1038/s41529-025-00628-0","url":null,"abstract":"Understanding biocide performance in mixed-species biofilms is critical to mitigating microbiologically influenced corrosion (MIC). In this study, a novel dual anaerobic biofilm reactor was used to evaluate glutaraldehyde efficacy under environmentally relevant conditions, using a complex microbial consortium from marine sediment. Despite biocide dosing, biofilms persisted and induced localized corrosion, indicating incomplete mitigation. Each biocide application led to an electronegative shift in E corr and a reduction in <math> <mrow> <msub><mrow><mi>H</mi></mrow> <mrow><mn>2</mn></mrow> </msub> <mi>S</mi></mrow> </math> concentration, suggesting partial suppression of microbial activity. Raman spectroscopy and profilometry revealed differences in corrosion product composition and pit morphology between biotic and abiotic systems. 16S rRNA sequencing showed enrichment of stress-tolerant genera, including Exiguobacterium and Serpentinicella, consistent with increased chemical tolerance. These findings highlight the limitations of conventional biocide strategies and demonstrate the need for adaptive, community-informed treatment approaches. The dual-reactor model provides a robust platform for future MIC standardization efforts and mechanistic investigation of biofilm resilience under anoxic conditions.","PeriodicalId":19270,"journal":{"name":"npj Materials Degradation","volume":"9 1","pages":"97"},"PeriodicalIF":7.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12313519/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144775822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multilayer PEO coatings with encapsulated cerium for active corrosion protection of aluminium. 铝的主动腐蚀防护用多层铈包封PEO涂层。

IF 6.6 2区材料科学

npj Materials Degradation Pub Date : 2025-01-01 Epub Date: 2025-03-07 DOI: 10.1038/s41529-025-00560-3

Safiya Al Abri, Tess Knowles, Yitao Pan, Aleksey Yerokhin, Beatriz Mingo

引用次数: 0

A mechanistic study of iron passivation and transpassive behavior in sulfate solutions using thermo-kinetic diagrams. 用热动力学图研究硫酸盐溶液中铁钝化和传递行为的机理。

IF 7.6 2区材料科学

npj Materials Degradation Pub Date : 2025-01-01 Epub Date: 2025-10-03 DOI: 10.1038/s41529-025-00667-7

Mohammad Amin Razmjoo Khollari, Kashif Mairaj Deen, Edouard Asselin

{"title":"A mechanistic study of iron passivation and transpassive behavior in sulfate solutions using thermo-kinetic diagrams.","authors":"Mohammad Amin Razmjoo Khollari, Kashif Mairaj Deen, Edouard Asselin","doi":"10.1038/s41529-025-00667-7","DOIUrl":"10.1038/s41529-025-00667-7","url":null,"abstract":"Understanding the dissolution and passivation of iron in aqueous environments is essential for enhancing its corrosion resistance and expanding its applications. We present Thermo-Kinetic (TK) diagrams for iron in deaerated solutions with no added sodium sulfate (Na2SO4) and with 0.1 M Na2SO4 over the pH range 1-14, constructed by integrating current density contours from potentiodynamic polarization with thermodynamic E-pH diagrams. TK diagrams indicate that in solutions with no added Na2SO4, iron passivates above pH 7, with a minimum passive current density (ip) of 5 ×10-6 mA·cm-2 at pH 8. The addition of 0.1 M Na2SO4 delayed passivation until pH 12 and increased ip nearly tenfold. Galvanostatic (GS) polarization and EIS validated the TK diagram results. XPS after GS polarization revealed an FeOOH/Fe2O3 film at pH 10, while Fe3O4/Fe2O3 dominated at pH 12 and 14. These results clarify how sulfate compromises iron passivity and highlight TK diagrams as a powerful tool for mapping corrosion behavior.","PeriodicalId":19270,"journal":{"name":"npj Materials Degradation","volume":"9 1","pages":"119"},"PeriodicalIF":7.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12494497/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145232995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of natural aging on hydrophilicity and mechanical properties of PDMS in various storage environments. 自然老化对不同贮存环境下PDMS亲水性和力学性能的影响。

IF 7.6 2区材料科学

npj Materials Degradation Pub Date : 2025-01-01 Epub Date: 2025-08-21 DOI: 10.1038/s41529-025-00659-7

Shuyu Zhang, Anne E Staples

引用次数: 0

Corrosion inhibition mechanisms of 2-mercaptobenzothiazole on AA2024 T3 aluminium alloy. 2-巯基苯并噻唑对AA2024 T3铝合金的缓蚀机理

IF 7.6 2区材料科学

npj Materials Degradation Pub Date : 2025-01-01 Epub Date: 2025-08-03 DOI: 10.1038/s41529-025-00653-z

Vishant Garg, Maxime Magnan, Sandrine Zanna, Antoine Seyeux, Frédéric Wiame, Vincent Maurice, Philippe Marcus

{"title":"Corrosion inhibition mechanisms of 2-mercaptobenzothiazole on AA2024 T3 aluminium alloy.","authors":"Vishant Garg, Maxime Magnan, Sandrine Zanna, Antoine Seyeux, Frédéric Wiame, Vincent Maurice, Philippe Marcus","doi":"10.1038/s41529-025-00653-z","DOIUrl":"10.1038/s41529-025-00653-z","url":null,"abstract":"The mechanisms of 2-mercaptobenzothiazole (2-MBT) adsorption and corrosion inhibition on the aerospace AA2024 T3 aluminium alloy have been investigated using electrochemistry and advanced surface analyses. Electrochemical methods were used to measure the degree of corrosion protection in neutral chloride media, while advanced surface analysis techniques were employed to determine the interfacial interaction and inhibitor action mechanisms. It is shown that 2-MBT effectively inhibits corrosion of the alloy, reducing its susceptibility to corrosion attack and its corrosion rate. Surface analysis, including the use of ToF-SIMS 3-D chemical mapping, confirms 2-MBT adsorption on partially dealloyed intermetallic particles (IMPs) along with the presence of a thin 2-MBT layer on the top-most alloy surface. Chloride ions breakdown the native oxide film, allowing 2-MBT to adsorb on IMPs, thereby inhibiting further localized corrosion on these particles, while the 2-MBT layer on the surface protects the alloy matrix from surface oxidation.","PeriodicalId":19270,"journal":{"name":"npj Materials Degradation","volume":"9 1","pages":"100"},"PeriodicalIF":7.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12317847/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144784885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrosion type identification in flanged joints using recurrent neural networks on electrochemical noise measurements. 基于电化学噪声测量的递归神经网络法兰连接腐蚀类型识别。

IF 6.6 2区材料科学

npj Materials Degradation Pub Date : 2025-01-01 Epub Date: 2025-07-15 DOI: 10.1038/s41529-025-00638-y

Soroosh Hakimian, Abdel-Hakim Bouzid, Lucas A Hof

{"title":"Corrosion type identification in flanged joints using recurrent neural networks on electrochemical noise measurements.","authors":"Soroosh Hakimian, Abdel-Hakim Bouzid, Lucas A Hof","doi":"10.1038/s41529-025-00638-y","DOIUrl":"10.1038/s41529-025-00638-y","url":null,"abstract":"Bolted flanged joints are essential for connecting piping and process equipment but are vulnerable to localized corrosion that leads to sudden, unpredictable leaks. Electrochemical noise (EN) measurements can detect such corrosion, yet processing EN data is time-consuming and requires expertise. This study applies recurrent neural networks (RNNs) to automate corrosion type identification on flange surfaces using raw EN signals from spontaneous electrochemical reactions. In this work, supervised, hybrid, and unsupervised ML approaches are evaluated using experimentally obtained EN data. Among supervised models, the long short-term memory (LSTM) model achieves 93.62% accuracy. A hybrid method combining LSTM autoencoder features with a random forest classifier improves accuracy to 97.85%. An unsupervised method using LSTM autoencoder, principal component analysis, and k-means clustering also shows strong potential for real-time corrosion monitoring. Automated identification of corrosion types on flanged joints supports more effective material protection strategies, reducing the risk of failure in critical infrastructure.","PeriodicalId":19270,"journal":{"name":"npj Materials Degradation","volume":"9 1","pages":"88"},"PeriodicalIF":6.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12259464/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144649912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of plastic deformation on the hydrogen embrittlement of ferritic high strength steel. 塑性变形对铁素体高强钢氢脆的影响。

IF 6.6 2区材料科学

npj Materials Degradation Pub Date : 2025-01-01 Epub Date: 2025-05-02 DOI: 10.1038/s41529-025-00592-9

Tim Boot, Pascal Kömmelt, Ruud W A Hendrikx, Amarante J Böttger, Vera Popovich

引用次数: 0