Corrosion Communications最新文献_第8页

Effects of solid NaCl deposit and water vapor on corrosion resistance of K452 superalloy and aluminized coating 固体NaCl沉积和水蒸气对K452高温合金及渗铝层耐蚀性的影响

Corrosion Communications Pub Date : 2023-03-01 DOI: 10.1016/j.corcom.2022.07.004

Jiaxin Xu, Shujiang Geng, Jinlong Wang, Gang Chen, Fuhui Wang

{"title":"Effects of solid NaCl deposit and water vapor on corrosion resistance of K452 superalloy and aluminized coating","authors":"Jiaxin Xu, Shujiang Geng, Jinlong Wang, Gang Chen, Fuhui Wang","doi":"10.1016/j.corcom.2022.07.004","DOIUrl":"https://doi.org/10.1016/j.corcom.2022.07.004","url":null,"abstract":"<div><p>Aluminized coating was prepared on K452 superalloy by chemical vapor deposition (CVD) technique. The oxidation/corrosion behavior of alloy and coating were investigated at 750 ℃ in air, air with solid NaCl deposit and moist air with solid NaCl deposit, respectively. The microstructure and composition of samples were characterized by SEM/EDS and XRD techniques. The results demonstrated that aluminized coating exhibited better oxidation/corrosion resistance than K452 alloy in the three environments above. And the main oxidation and corrosion products of alloy were Cr<sub>2</sub>O<sub>3</sub> and NiO, respectively. This indicated that Ni participated in the corrosion process due to the depletion of Cr during accelerated corrosion. Therefore, the established corrosion scale was non-protective, which could not protect underlying alloy from accelerated corrosion. Contrarily, the main oxidation and corrosion products of coating were protective Al<sub>2</sub>O<sub>3</sub>, which acted as a barrier to separate coating from NaCl and oxygen, interrupting the self-sustainable accelerated corrosion. Additionally, the presence of water vapor was beneficial in reducing the spallation of corrosion products within a short time. The mechanisms of K452 alloy and aluminized coating in the three environments above were discussed in detail.</p></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"9 ","pages":"Pages 13-26"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49711409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Synergism between walnut green husk extract and sodium dodecyl benzene sulfonate on cold rolled steel in 1.0 mol/L H2SO4 solution 核桃青皮提取物与十二烷基苯磺酸钠在1.0mol/LH2SO4溶液中对冷轧钢的协同作用

Corrosion Communications Pub Date : 2023-03-01 DOI: 10.1016/j.corcom.2022.05.004

Xianghong Li , Xu Xin , Shuduan Deng

{"title":"Synergism between walnut green husk extract and sodium dodecyl benzene sulfonate on cold rolled steel in 1.0 mol/L H2SO4 solution","authors":"Xianghong Li , Xu Xin , Shuduan Deng","doi":"10.1016/j.corcom.2022.05.004","DOIUrl":"https://doi.org/10.1016/j.corcom.2022.05.004","url":null,"abstract":"<div><p>Walnut green husk extract (WGHE) was prepared by the reflux method using the agricultural residues of walnut green husk as raw materials. Its synergistic inhibition effect with an anionic surfactant of sodium dodecyl benzene sulfonate (SDBS) on the corrosion of cold rolled steel (CRS) in 1.0 mol/L H<sub>2</sub>SO<sub>4</sub> solution at 20-50 ℃ was investigated using mass loss measurement, electrochemical techniques and surface analysis. Effective components for synergistic inhibition in WGHE were also explored in depth. The results show that individual WGHE or SDBS exhibits moderate inhibition, and the maximum inhibition efficiency of 100 mg/L is below 60%. However, the mixture of WGHE/SDBS has better inhibitive performance, and the maximum inhibition efficiency can reach as high as 95%. The corresponding synergism parameter is higher than 1, and the optimum concentration ratio is 1:1, but decreases at relatively higher temperatures. The adsorption of WGHE follows Freundlich isotherm, while SDBS and WGHE/SDBS obey Langmuir isotherm. Comparing with individual WGHE or SDBS, WGHE/SDBS inhibits both cathodic and anodic reactions simultaneously to more extent, and further increases charge transfer resistance for CRS corrosion. SEM and AFM microphotographs confirm that WGHE/SDBS exhibits greater inhibitive ability on CRS surface than individual inhibitor. XPS analysis confirms the adsorption of inhibitor molecules containing O and N atoms in WGHE on CRS surface. The synergistic inhibited CRS surface has superior hydrophobic properties with a larger obtuse contact angle. There is also a synergism between SDBS and the major components of rutin, quercetin and 1-methylnaphoqinone in WGHE, but their synergistic inhibition degree is a little weaker than WGHE/SDBS.</p></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"9 ","pages":"Pages 1-12"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49711722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Ionic liquid route for the corrosion inhibition of Al alloys: the effect of butylammonium nitrate on the corrosion of AA2024-T6 离子液体缓蚀铝合金的途径：硝酸丁基铵对AA2024-T6腐蚀的影响

Corrosion Communications Pub Date : 2023-03-01 DOI: 10.1016/j.corcom.2022.11.001

Abdelmoheiman Zakaria Benbouzid, Oumaïma Gharbi, Najet Sidi-Yakoub, Mai T.T. Tran, Mireille Turmine, Vincent Vivier

引用次数: 2

Enhancing corrosion resistance of magnesium alloys via combining green chicory extracts and metal cations as organic-inorganic composite inhibitor 绿菊苣提取物与金属阳离子结合作为有机-无机复合缓蚀剂增强镁合金的耐蚀性

Corrosion Communications Pub Date : 2023-03-01 DOI: 10.1016/j.corcom.2022.06.002

Pubo Li , Zexi Shao , Wei Fu , Wei Ma , Kun Yang , Hai Zhou , Mangmang Gao

{"title":"Enhancing corrosion resistance of magnesium alloys via combining green chicory extracts and metal cations as organic-inorganic composite inhibitor","authors":"Pubo Li , Zexi Shao , Wei Fu , Wei Ma , Kun Yang , Hai Zhou , Mangmang Gao","doi":"10.1016/j.corcom.2022.06.002","DOIUrl":"https://doi.org/10.1016/j.corcom.2022.06.002","url":null,"abstract":"<div><p>Organic inhibitors provide advantages for corrosion protection through formation of chelation layers. However, individual inhibitors have weak inhibition efficiency when they are exposed to neutral media containing chloride ions. In this study, corrosion resistance of Mg alloy AZ91D is synergistically enhanced by combining green chicory (CA) extracts with metal cations (Ca<sup>2+</sup>, Fe<sup>3+</sup>, Fe<sup>2+</sup>, and Ni<sup>2+</sup>). The Mg(OH)<sub>2</sub> and MgO corrosion products are porous in the early stages of immersion. The main organic compounds in CA including caffeic acid (Caf) and chicoric acid (Chi), which combine with inorganic cations via chelation reaction, are adsorbed on the corroded area. The large Bader charge and adsorption energies of Chi-Calcium-Chi (CaChi) complexes determined through density functional theory calculations suggest that CaChi interacts strongly with inorganic cations. The combined organic–inorganic inhibitors can therefore be absorbed firmly on the Mg substrate to form an active inhibitory layer. Among the various investigated CA-cation mixtures, CA-Ca<sup>2+</sup> exhibited the highest anti-corrosion effect after immersion for 120 h and a corrosion current density (<em>i</em><sub>corr</sub>), corrosion potential (<em>E</em><sub>corr</sub>), and inhibition efficiency (<em>η</em>) of 0.09 ± 0.03 μA·cm<sup>−2</sup>, –0.87 ± 0.03 V (vs. SCE), and 92%, respectively. This work provides an effective approach for corrosion protection through combination of organic and inorganic inhibitors.</p></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"9 ","pages":"Pages 44-56"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49733855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Hydrothermally prepared layered double hydroxide coatings for corrosion protection of Mg alloys – a critical review 水热法制备用于镁合金防腐的层状双氢氧化物涂层研究进展

Corrosion Communications Pub Date : 2022-12-01 DOI: 10.1016/j.corcom.2022.07.001

Lei Liu , Qiushi Deng , Paul White , Shuai Dong , Ivan S. Cole , Jie Dong , Xiao-Bo Chen

{"title":"Hydrothermally prepared layered double hydroxide coatings for corrosion protection of Mg alloys – a critical review","authors":"Lei Liu , Qiushi Deng , Paul White , Shuai Dong , Ivan S. Cole , Jie Dong , Xiao-Bo Chen","doi":"10.1016/j.corcom.2022.07.001","DOIUrl":"10.1016/j.corcom.2022.07.001","url":null,"abstract":"<div><p>Layered double hydroxide (LDH) coatings emerge as a sound strategy to mitigate corrosion of magnesium (Mg) alloys owing to their unique anion-exchange capability to entrapping aggressive anions, such as chloride. The most common approach for fabricating protective LDH coatings upon the surface of Mg alloys is hydrothermal treatment, which is ascribed to their simple manipulation, rich diversity in chemistry and structure of resultants, and high coating adhesion via chemical bonding. This article reviews the roles of key processing variables of hydrothermal manufacturing of LDH coatings to provide insights for design and optimising LDH coatings with satisfactory corrosion protection to Mg alloys. The selected key variables include chemistry and microstructure of Mg alloy substrate, components of LDH solution, hydrothermal operational conditions (mainly involving solution pH, reaction temperature and reaction time duration), and anionic types used in post anion-exchange treatment. The contributions of those variables to the growth behavior of LDH coatings are discussed. The relationships between LDH coating structure and its corrosion mitigation are also established. Finally, the strength and limitations of existing work are critically articulated and future research directions are proposed accordingly.</p></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"8 ","pages":"Pages 40-48"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667266922000494/pdfft?md5=23cea189e8ec78ebadbdf7ce317cf504&pid=1-s2.0-S2667266922000494-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88267772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Effects of grain boundary characteristics changing with cold rolling deformation on intergranular corrosion resistance of 443 ultra-pure ferritic stainless steel 晶界特征随冷轧变形变化对443超纯铁素体不锈钢抗晶间腐蚀性能的影响

Corrosion Communications Pub Date : 2022-12-01 DOI: 10.1016/j.corcom.2022.07.002

Binggang Shang, Longlin Lei, Xiangyu Wang, Pei He, Xinzhe Yuan, Wei Dai, Jin Li, Yiming Jiang, Yangting Sun

引用次数: 10

Improving oxidation resistance of Si coating by isolated-particle healing 用隔离粒子愈合提高硅涂层的抗氧化性

Corrosion Communications Pub Date : 2022-12-01 DOI: 10.1016/j.corcom.2022.03.006

Lin Chen , Jia-Hui Li , Guo-Qiang Wang , You-Feng Bo , Guan-Jun Yang

{"title":"Improving oxidation resistance of Si coating by isolated-particle healing","authors":"Lin Chen , Jia-Hui Li , Guo-Qiang Wang , You-Feng Bo , Guan-Jun Yang","doi":"10.1016/j.corcom.2022.03.006","DOIUrl":"https://doi.org/10.1016/j.corcom.2022.03.006","url":null,"abstract":"<div><p>Atmospheric plasma sprayed dense Si coatings have excellent potential for high-temperature oxidation resistance. However, numerous isolated spherical particles on the coating surface result in rapid oxidation and a large local TGO thickness. In the present study, isolated particle healing (IPH) treatment was proposed to eliminate these isolated particles. Then, the related structure evolution and oxidation kinetics of Si coatings were investigated. Finally, the failure mechanism of TGO after oxidation was identified. The results show that the IPH treatment makes isolated particles diffuse, connect with and then immerse themselves into the bulk coating surface, thereby contributing to both surface smoothing and coating densification. Consequently, the localized large thickness in the TGO scale is eliminated, and the overall oxidation rates of the IPH Si coating decrease by ∼24% compared with the as-sprayed coating. The <em>β</em>→<em>α</em> phase transformation of polymorphic cristobalite with a volume reduction of ∼4.5% is the main cause for TGO channel cracking and is not suppressed by IPH treatment, which points out future directions for better antioxidant Si coatings.</p></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"8 ","pages":"Pages 9-17"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667266922000470/pdfft?md5=a265de78b3c5f110af5ea45d1d04c08f&pid=1-s2.0-S2667266922000470-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92083147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Mechanistic investigations of corrosion and localized corrosion of X80 steel in seawater comprising sulfate-reducing bacteria under continuous carbon starvation 含硫酸盐还原菌的海水中X80钢连续碳饥饿腐蚀及局部腐蚀机理研究

Corrosion Communications Pub Date : 2022-12-01 DOI: 10.1016/j.corcom.2022.08.002

Hongwei Liu , Cuiying Chen , Muhammad Asif , Tong Zhao , Bing Lei , Guozhe Meng , Hongfang Liu

{"title":"Mechanistic investigations of corrosion and localized corrosion of X80 steel in seawater comprising sulfate-reducing bacteria under continuous carbon starvation","authors":"Hongwei Liu , Cuiying Chen , Muhammad Asif , Tong Zhao , Bing Lei , Guozhe Meng , Hongfang Liu","doi":"10.1016/j.corcom.2022.08.002","DOIUrl":"10.1016/j.corcom.2022.08.002","url":null,"abstract":"<div><p>Sulfate-reducing bacteria (SRB) corrosion is one of the main reasons leading to the service failure of engineering materials in the marine environment. An understanding of SRB corrosion especially under continuous organic carbon starvation is required. In this work, SRB corrosion of X80 pipeline steel under continuous organic carbon starvation was studied using mass loss, electrochemical measurements, and surface analysis. The effects of initial SRB concentrations on steel corrosion were also studied and discussed. The results indicated that more than 99% population of SRB die after 21 d of testing in various conditions, but there are still amounts of SRB survivors. SRB survivors with continued organic carbon starvation have a better adaptive ability and accelerated steel corrosion. Both the uniform and localized corrosion rates are also proportional to the initial SRB concentration as well as SRB survivors. The localized corrosion rate and density of corrosion pits of specimen corresponding to an initial SRB count of 10<sup>8</sup> cells/mL reach bigger values of (0.693 ± 0.114) mm/y and (1.94 ± 0.39)×10<sup>4</sup> pits/cm<sup>2</sup>, respectively, which are induced by the combination of the sessile and planktonic SRB.</p></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"8 ","pages":"Pages 70-80"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667266922000603/pdfft?md5=cc3bcfbcc59117833bce2d97968a4739&pid=1-s2.0-S2667266922000603-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80473488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Corrosion of X65 steel by Pseudomonas sp. in planktonic and sessile states and inhibition effect of cathodic polarization 假单胞菌对X65钢浮游态和固态的腐蚀及阴极极化的抑制作用

Corrosion Communications Pub Date : 2022-12-01 DOI: 10.1016/j.corcom.2022.05.003

Meiying Lv, Zhenxin Li, Min Du, Guannan Li, Jian Wang, Ting Xu

{"title":"Corrosion of X65 steel by Pseudomonas sp. in planktonic and sessile states and inhibition effect of cathodic polarization","authors":"Meiying Lv, Zhenxin Li, Min Du, Guannan Li, Jian Wang, Ting Xu","doi":"10.1016/j.corcom.2022.05.003","DOIUrl":"10.1016/j.corcom.2022.05.003","url":null,"abstract":"<div><p>In harsh marine environment, corrosion is a serious problem, among which microbiologically influenced corrosion is particularly common and complex. This work studied corrosion of X65 steel by planktonic and sessile iron oxidizing bacteria (IOB), i.e. <em>Pseudomonas</em> sp. isolated from coastal water of Qingdao, and inhibition effect of cathodic polarization. Results demonstrate that both the planktonic and sessile IOB caused the corrosion of X65 steel by promoting the oxidation of ferrous ions, but the contribution of sessile cells was far greater than that of planktonic cells. Cathodic polarization kills sessile cells on the metal surface and prevent attachment of IOB. With a negative shift of the cathodic potential, the inhibition effect was enhanced. Cathodic polarization altered interface properties of X65 steel, affecting adhesion and corrosion process of IOB cells. However, when X65 steel was sufficiently polarized to −1050 mV vs. SCE, IOB produced more extracellular polymeric substances to resist stimulation by an external electric field. Therefore, cathodic polarization could not completely remove sessile IOB cells, and pitting corrosion existed on the metal surface.</p></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"8 ","pages":"Pages 58-69"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667266922000597/pdfft?md5=6793dcec7039a3e35e888ead0abbae41&pid=1-s2.0-S2667266922000597-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79133910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Self healing behavior of enamel incorporated with nickel particles of various sizes during high temperature oxidation process 不同尺寸镍粒子的珐琅在高温氧化过程中的自愈行为

Corrosion Communications Pub Date : 2022-12-01 DOI: 10.1016/j.corcom.2022.07.003

Yimin Liao , Jinlong Wang , Min Feng , Shenglong Zhu , Minghui Chen , Fuhui Wang

{"title":"Self healing behavior of enamel incorporated with nickel particles of various sizes during high temperature oxidation process","authors":"Yimin Liao , Jinlong Wang , Min Feng , Shenglong Zhu , Minghui Chen , Fuhui Wang","doi":"10.1016/j.corcom.2022.07.003","DOIUrl":"10.1016/j.corcom.2022.07.003","url":null,"abstract":"<div><p>The self-healing nickel-enamel composite coating can spontaneously heal cracks at a certain temperature, thus ensuring its high-temperature service ability in thermal shock environment. In this study, nickel particles of various sizes (50 nm, 2 <em>µ</em>m and 20 <em>µ</em>m) were incorporated into a silicate enamel. Flexural strength of the pure enamel and its composites was investigated to analyze their thermal shock and crack healing behavior. Results indicated that nickel particles incorporation enhanced strength and thermal shock resistance of enamel, but such an enhancement depended on the size of particles. When nickel particles were in a scale of 2 <em>µ</em>m, the composite performed the highest flexural strength, 34% higher than the enamel free of nickel particles. Moreover, its critical thermal shock temperature (Δ<em>T</em><sub>C</sub>) was increased by 100 ℃. In the meantime, the composite was endowed with the optimum ability of cracks self-healing. After cracks nucleation in the process of thermal shock, they were largely healed in subsequent oxidation stage. Flexural strength was recovered to 87.9% of the value before thermal shock.</p></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"8 ","pages":"Pages 49-57"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667266922000573/pdfft?md5=cd61f57e13977dc9b7e048c585f7ff8b&pid=1-s2.0-S2667266922000573-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79475221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2