Corrosion Science最新文献

Enhancing corrosion resistance of Ti₂AlC MAX phase through Sn solid solution in harsh acidic environments 通过Sn固溶体增强Ti₂AlC MAX相在恶劣酸性环境中的耐腐蚀性

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-05-29 DOI: 10.1016/j.corsci.2025.113073

Jiayue Zhang , Yan Zhang , Zhenyu Wang , Guanshui Ma , Anfeng Zhang , Kwang-Ryeol Lee , Aiying Wang

{"title":"Enhancing corrosion resistance of Ti₂AlC MAX phase through Sn solid solution in harsh acidic environments","authors":"Jiayue Zhang , Yan Zhang , Zhenyu Wang , Guanshui Ma , Anfeng Zhang , Kwang-Ryeol Lee , Aiying Wang","doi":"10.1016/j.corsci.2025.113073","DOIUrl":"10.1016/j.corsci.2025.113073","url":null,"abstract":"<div><div>When proton exchange membrane fuel cells (PEMFCs) run in the harsh acidic environment at 60–80 °C, metallic bipolar plates are prone to dissolution and corrosion, leading to increased interfacial contact resistance (ICR) and a decrease in output power energy. In this work, high-purity Ti<sub>2</sub>AlC MAX phase coatings, with and without Sn solid solution, were fabricated on 316 L stainless steel using a multiple sputtering technique followed by a subsequent heat treatment process. Effect of Sn modification on the corrosion resistance and electrical conductivity of coatings was particularly focused on under simulated PEMFCs conditions. The results indicated that the Ti<sub>2</sub>(Al, Sn)C coating significantly improved electrical conductivity and corrosion resistance compared to the pristine Ti<sub>2</sub>AlC coating. The observed phenomena in Ti<sub>2</sub>(Al, Sn)C coating could be attributed to the unique appearance of passivation layer, where three layers—TiO<sub>2</sub>, Al<sub>2</sub>O<sub>3</sub> and SnO<sub>2</sub>— were identified distinctly. One benefit was that the outermost SnO<sub>2</sub>, resulting from the oxidation of Sn, partially inhibited the penetration of corrosive media. This enhancement improved the protective efficiency of the subsequent Al<sub>2</sub>O<sub>3</sub> layer, which has a higher density than that of TiO<sub>2</sub> layer. On the other hand, the microstructure evolution of the passivation film was also well consistent with the capability of atomic diffusion, as indicated by the atomic vacancy formation energy and the migration energy by density functional theory simulation. As a result, the unusual layered oxides in the Ti<sub>2</sub>(Al, Sn)C coating enhanced the corrosion resistance and ICR value of the coatings compared to the pristine Ti<sub>2</sub>AlC coating.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"255 ","pages":"Article 113073"},"PeriodicalIF":7.4,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144185736","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

Thermostable and defect-repairable urushiol nanocomposite protective coating crosslinked by sodium tartrate-stabilized Ti3C2Tx 酒石酸钠稳定Ti3C2Tx交联耐热可修复漆酚纳米复合防护涂层

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-05-29 DOI: 10.1016/j.corsci.2025.113074

Baomin Fan , Hang Li , Jingmao Zhao , Shihao Wang , Hua Tian

{"title":"Thermostable and defect-repairable urushiol nanocomposite protective coating crosslinked by sodium tartrate-stabilized Ti3C2Tx","authors":"Baomin Fan , Hang Li , Jingmao Zhao , Shihao Wang , Hua Tian","doi":"10.1016/j.corsci.2025.113074","DOIUrl":"10.1016/j.corsci.2025.113074","url":null,"abstract":"<div><div>Thermal-assisted exploitation of heavy crude oil poses severe corrosion threats to transportation pipelines, necessitating the development of high-temperature protective coatings. Herein, sodium tartrate (ST)-stabilized two-dimensional alkalized-Ti<sub>3</sub>C<sub>2</sub>T<sub><em>x</em></sub> (SMX), one of the typical transition metal carbides (MXene), was employed as a dual-functional nanofiller and crosslinker to fabricate urushiol-based composite coatings (SMX<sub><em>n</em></sub>@U). The incorporation of 0.3 g/L ST effectively stabilized the colloidal state of Ti<sub>3</sub>C<sub>2</sub>T<sub><em>x</em></sub> nanosheets, ensuring their uniform dispersion within the urushiol matrix. The alkalization process introduced abundant hydroxyl terminations on SMX surface, providing ample active sites for crosslinking with the catechol groups of urushiol. A novel crosslinking mechanism between SMX and urushiol was elucidated through binding configuration analyses and theoretical simulations. Benefiting from the high-density crosslinking and exceptional barrier property of SMX, the optimized composite coating, crosslinked with 1.5 % SMX (SMX<sub>1.5</sub>@U), delivered outstanding protection performance. SMX<sub>1.5</sub>@U-coated sample maintained a coating resistance of 7.42 × 10<sup>8</sup> Ω·cm<sup>2</sup> after 30 days of immersion in CO<sub>2</sub>-saturated 3.5 % NaCl solution at 140 °C, significantly outperforming its organotitanium-crosslinked counterpart. Neutral salt spray and scanning electrochemical microscopy measurements further demonstrated the defect-repairing capability of SMX<sub>1.5</sub>@U, where the structural degradation of SMX and the release of ST molecules at scratched regions contributed to its active repairing capability. This work presents a promising solution for corrosion protection in the extraction and transport of unconventional petroleum resources.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"255 ","pages":"Article 113074"},"PeriodicalIF":7.4,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144178272","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

Exploring the corrosion behavior of bimodal-grained structured Mg-2.5Zn-0.2Ce alloy with a high strength-ductility synergy 探讨高强度-延性协同双晶Mg-2.5Zn-0.2Ce合金的腐蚀行为

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-05-26 DOI: 10.1016/j.corsci.2025.113062

Weichao Zhao , Dawei Wang , Xiaorui Dong , Hailong Jia , Yajie Yang , Jin Xu , Xinlong Wang , Min Zha , Huiyuan Wang

引用次数: 0

Oxidation and nitridation analysis of CoNiCrAlY-based composite coatings: Understanding Mn oxide buildup mechanisms in reducing atmosphere at 1000 ℃ conicraly基复合涂层的氧化和氮化分析：了解1000℃还原气氛中Mn氧化物的形成机制

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-05-25 DOI: 10.1016/j.corsci.2025.113061

Zitao Jiang, Kang Yang, Shihong Zhang

引用次数: 0

Atmospheric corrosion rate of iron with high salinity solution droplets at low temperatures 低温下高盐度溶液液滴对铁的大气腐蚀速率

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-05-25 DOI: 10.1016/j.corsci.2025.113059

Kosaku Nomura , Mana Iwai , Sho Kitano , Hiroki Habazaki , Koji Fushimi

引用次数: 0

Exploring electrochemical molten salt-metal interactions: Insights from ab initio molecular dynamics 探索电化学熔盐-金属相互作用：从头开始分子动力学的见解

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-05-23 DOI: 10.1016/j.corsci.2025.113060

Ximeng Wang , Anton Schneider , David Andersson , Yongfeng Zhang

{"title":"Exploring electrochemical molten salt-metal interactions: Insights from ab initio molecular dynamics","authors":"Ximeng Wang , Anton Schneider , David Andersson , Yongfeng Zhang","doi":"10.1016/j.corsci.2025.113060","DOIUrl":"10.1016/j.corsci.2025.113060","url":null,"abstract":"<div><div>Molten salts are promising for various engineering applications including energy storage, batteries and fuel cells, and advanced nuclear reactors. However, their promise is impaired by the corrosion of structural alloys such as stainless steels and Ni-based alloys. While corrosion is often attributed to impurities, understanding the electrochemical interactions between pure salts and metals is foundational for revealing the corrosion mechanisms. Using <em>ab initio</em> molecular dynamics, this work studies the interaction between prototypical austenitic <span><math><mi>FeCr</mi></math></span> alloy and molten <span><math><mi>NaCl</mi></math></span> and <span><math><mi>NaF</mi></math></span> salts, to elucidate the interaction between molten salts and metals. We observe the formation of a thin electric double layer and preferential segregation of anions nearby <span><math><mi>Cr</mi></math></span>. The electronic density of states and electron density contour reveal weak, covalent interactions between anions and metal atoms. Bader charge analysis indicates that charge neutrality is maintained in both metal and salts without charge transfer, suggesting that the preferential anion segregation is likely caused by the different charge states of <span><math><mi>Cr</mi></math></span> and <span><math><mi>Fe</mi></math></span> instead of electrochemical reactions. The findings confirm the widely adopted assumption that pure salts do not corrode metals and emphasizes the importance of improving salt impurity for mitigating corrosion.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"254 ","pages":"Article 113060"},"PeriodicalIF":7.4,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144137826","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

Optimizing the corrosion resistance-strength synergy of Mg-6Gd-3Y-0.5Zr alloy via trace In addition 此外，通过微量元素优化Mg-6Gd-3Y-0.5Zr合金的耐蚀强度协同效应

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-05-23 DOI: 10.1016/j.corsci.2025.113058

Duo Wang , Yi Zhang , Peng Zhou , Lv Xiao , Lixiang Yang , Weiyi Yang , Jingjing Nie , Tao Zhang , Fuhui Wang

引用次数: 0

Coupling effect of H2S and H2 on the fracture mechanical properties of X80 pipeline steel: Experiment vs DFT H2S和H2对X80管线钢断裂力学性能的耦合效应：实验与DFT

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-05-22 DOI: 10.1016/j.corsci.2025.113056

Haotian Wei , Chutian Shen , Meng Xu , Shimin Qu , Chen Sun , Batu Nasheng , Juan Shang , Zhengli Hua , Sunyang Qiu

{"title":"Coupling effect of H2S and H2 on the fracture mechanical properties of X80 pipeline steel: Experiment vs DFT","authors":"Haotian Wei , Chutian Shen , Meng Xu , Shimin Qu , Chen Sun , Batu Nasheng , Juan Shang , Zhengli Hua , Sunyang Qiu","doi":"10.1016/j.corsci.2025.113056","DOIUrl":"10.1016/j.corsci.2025.113056","url":null,"abstract":"<div><div>In this study, we explored the effect of dry hydrogen sulfide (H<sub>2</sub>S) on the hydrogen embrittlement sensitivity of X80 pipeline steel through several different tests: fatigue crack growth tests, fracture toughness tests, and density functional theory (DFT) calculations. The results showed that the addition of 3.952 ppm H<sub>2</sub>S into 12 MPa hydrogen (H<sub>2</sub>) slightly enhanced the hydrogen-induced degradation of the fatigue and fracture properties of the X80 steel. The degradation of the material became severe when the content of H<sub>2</sub>S increased to 19.76 ppm. Fracture surface observations indicate that H<sub>2</sub>S does not significantly change the fracture mode of the specimen compared to that in hydrogen gas. DFT calculations qualitatively reveal that H<sub>2</sub>S enhances the hydrogen adsorption on iron surface and the dissolution rate into the subsurface. This process promotes the accumulation of hydrogen in the material, thereby increasing the hydrogen embrittlement of the pipeline steel.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"254 ","pages":"Article 113056"},"PeriodicalIF":7.4,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144147281","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 grain boundary engineering on electrochemical and intergranular corrosion of 316L stainless steel 晶界工程对316L不锈钢电化学和晶间腐蚀的影响

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-05-22 DOI: 10.1016/j.corsci.2025.113050

Chen Wang , Jun Yin , Jiayi He , Xiaobo Zhu , Zikai Wu , Kuangxin Luo , Fenghua Luo

{"title":"Effect of grain boundary engineering on electrochemical and intergranular corrosion of 316L stainless steel","authors":"Chen Wang , Jun Yin , Jiayi He , Xiaobo Zhu , Zikai Wu , Kuangxin Luo , Fenghua Luo","doi":"10.1016/j.corsci.2025.113050","DOIUrl":"10.1016/j.corsci.2025.113050","url":null,"abstract":"<div><div>The grain boundary engineering of 316 L SS was carried out by cold rolling and annealing. The microstructure was analyzed by EBSD, and the corrosion behavior was studied by electrochemical test, immersion and acid electrolytic corrosions. The results showed that the proportion of the low-Σ coincidence site lattice (CSL) boundaries in the sample via 60 % cold rolling deformation and annealing at 1050 °C for 50 min increases to 58.04 %, with the Σ3 accounting for 91.49 % of the total low-Ʃ CSL boundary. In terms of corrosion properties, this sample has larger total polarization resistance (97,247 Ω/cm<sup>2</sup>). The improved corrosion resistance is attributed to its higher proportion of Σ3 grain boundaries (especially coherent Σ3 boundaries), and larger proportion of (J2 +J3) in the triple junction distribution. The combined effect obtained from the increase of low-energy Σ3 boundaries and the interruption of the random high-angle grain boundary network is more effective in suppressing intergranular attacks. The corrosion morphology showed that the specimens with the degree of sensitization values more than 0.5 % exhibit significant intergranular corrosion, and their corrosion morphology transitioned from boundary-controlled (ditch) to surface-controlled (step) corrosion.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"254 ","pages":"Article 113050"},"PeriodicalIF":7.4,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144124422","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

Mechanistic insight into pre-strain influenced stress corrosion cracking of advanced high-strength steels in marine environment 预应变对海洋环境中高级高强钢应力腐蚀开裂影响的机理研究

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-05-21 DOI: 10.1016/j.corsci.2025.113057

Yifan Zheng , Zhihui Wang , Xian Zhang , Zhicheng Su , Jing Liu , Rui Yu , Kaiming Wu

{"title":"Mechanistic insight into pre-strain influenced stress corrosion cracking of advanced high-strength steels in marine environment","authors":"Yifan Zheng , Zhihui Wang , Xian Zhang , Zhicheng Su , Jing Liu , Rui Yu , Kaiming Wu","doi":"10.1016/j.corsci.2025.113057","DOIUrl":"10.1016/j.corsci.2025.113057","url":null,"abstract":"<div><div>This study investigates the stress corrosion behavior of ultrafine bainite (UFB) and quenched-partitioning (Q&P) steels with identical compositions under pre-strain (1σ<sub>s</sub>) in marine environment. After pre-strain treatment, the TRIP effect reduced the retained austenite content in both steels. Pre-strain induced the transformation of retained austenite blocks into strain-induced martensite, increasing stress concentration. The micro-galvanic effect and high dislocation density in the multiphase structure enhanced electrochemical activity, promoting crack initiation. However, the transformation of retained austenite films into plastic lath martensite passivated crack tips，delaying crack propagation. Q&P steel with more retained austenite blocks exhibited higher stress corrosion cracking (SCC) susceptibility than that of UFB steel, due to accelerated micro-galvanic corrosion, localized stress concentration and defective rust layers. Finite element analysis further confirmed the electrochemical-mechanical coupling mechanism.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"255 ","pages":"Article 113057"},"PeriodicalIF":7.4,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144166248","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