Corrosion Science最新文献_第9页

Advances in understanding the initial stages of biomineralisation on AlMg 5083 aluminium alloy in a marine environment: Influence of microbial activity and polarisation 海洋环境中AlMg 5083铝合金生物矿化初始阶段的研究进展：微生物活动和极化的影响

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-05-28 DOI: 10.1016/j.corsci.2025.113071

A. Diderot, M.L. Délia, R. Basséguy

{"title":"Advances in understanding the initial stages of biomineralisation on AlMg 5083 aluminium alloy in a marine environment: Influence of microbial activity and polarisation","authors":"A. Diderot, M.L. Délia, R. Basséguy","doi":"10.1016/j.corsci.2025.113071","DOIUrl":"10.1016/j.corsci.2025.113071","url":null,"abstract":"<div><div>This paper investigates the role of microbial activity and polarisation on the first stages of biomineralisation on aluminium alloy 5083 in marine environment. The experiments were carried out in seawater seeded with salt marsh sediments as microbial inoculum. Microbial colonisation was observed on the surface after 10 days immersion at the open circuit potential (OCP). For the first time, the catalysis of dioxygen reduction by marine microbial activity was demonstrated on Al alloy using linear sweep voltammetry. This biocatalytic effect also influenced the corrosion rate (polarisation resistance measurement) and the formation of the biomineralization layer. Surface and cross-section SEM observations showed the existence of this layer, its mass was measured by phospho-chromic stripping. At the OCP, after 10 days' immersion, the layer is 31 % heavier in the presence of microorganisms, demonstrating the involvement of microbial activity in its formation. To understand the mechanism involved, the application of different polarisation potentials highlighted the role of cathodic and anodic reactions, showing that a dissolution/precipitation phenomenon was at the origin of the formation of the mine-ralised layer.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"255 ","pages":"Article 113071"},"PeriodicalIF":7.4,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144213047","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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Characteristics of the initiation and propagation of crevice corrosion in stainless steel 不锈钢缝隙腐蚀的萌生与扩展特性

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-05-27 DOI: 10.1016/j.corsci.2025.113063

Koichiro Omura , Masahiro Yamamoto , Yutaka Watanabe

{"title":"Characteristics of the initiation and propagation of crevice corrosion in stainless steel","authors":"Koichiro Omura , Masahiro Yamamoto , Yutaka Watanabe","doi":"10.1016/j.corsci.2025.113063","DOIUrl":"10.1016/j.corsci.2025.113063","url":null,"abstract":"<div><div>The crevice corrosion behavior of 316 L stainless steel in NaCl solution was investigated under constant potential conditions. Once crevice corrosion initiates at a given site, it propagates from the initiation site toward the crevice mouth. Upon reaching the crevice mouth, corrosion spreads circumferentially along the crevice mouth. This behavior occurs because the potential decreases rapidly before reaching the corrosion initiation site due to the IR drop, resulting in higher potential at the crevice mouth than at the bottom. Additionally, the distribution of solution concentration within the crevice does not differ significantly regardless of the location of the corrosion initiation site. This potential gradient leads to an increase in the corrosion current within the crevice, which accelerates crevice corrosion. From an equipment maintenance perspective, this study suggests that crevice corrosion predominantly propagates in the direction of crevice depth near the crevice mouth. When crevice corrosion is detected, even if the crevice length is significant, propagation in the direction of crevice depth is limited near the bottom. Therefore, priority should be given to inspecting and maintaining the area near the crevice mouth.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"255 ","pages":"Article 113063"},"PeriodicalIF":7.4,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144196356","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

Accelerated corrosion of 316 L stainless steel via biosynthetic FeS nanoparticles enhanced by sulfate-reducing bacteria electron transfer 硫酸盐还原菌电子转移增强生物合成FeS纳米颗粒对316 L不锈钢的加速腐蚀

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-05-27 DOI: 10.1016/j.corsci.2025.113054

Jinfeng Yang , Xiangju Liu , Yanan Wang , Ini-Ibehe Nabuk Etim , Jizhou Duan

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

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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

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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}

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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