Corrosion Communications最新文献

Prediction and verification of thin liquid film thickness on salt-deposited copper surface in an atmospheric hygrothermal environment 大气湿热环境下盐沉积铜表面液膜厚度的预测与验证

Corrosion Communications Pub Date : 2025-06-01 DOI: 10.1016/j.corcom.2024.09.001

Rongdie Zhu , Binxia Ma , Hongbin Zhang , Zhihao Qu , Jinyang Zhu

{"title":"Prediction and verification of thin liquid film thickness on salt-deposited copper surface in an atmospheric hygrothermal environment","authors":"Rongdie Zhu , Binxia Ma , Hongbin Zhang , Zhihao Qu , Jinyang Zhu","doi":"10.1016/j.corcom.2024.09.001","DOIUrl":"10.1016/j.corcom.2024.09.001","url":null,"abstract":"<div><div>This study used laser spectroscopy testing technology and independently constructed a testing apparatus to achieve stable measurements of the adsorbed liquid film thickness on copper surfaces. The apparatus measurement accuracy reached 91.7%. Using this apparatus, the thickness of the adsorbed liquid film on copper surfaces was measured and analyzed under different temperatures, relative humidity (RH), and salt (NaCl) deposition density conditions. According to the results, increased temperature, RH, and NaCl deposition increased the liquid film thickness. Furthermore, the liquid film thickness increased exponentially with increasing RH under the same temperature and NaCl deposition conditions. Surface fitting of the obtained liquid film thickness data yielded a fitting calculation formula for the adsorbed liquid film thickness on copper surfaces under typical atmospheric temperature conditions (25–45 °C). In addition, artificial neural networks (ANNs) and support vector machine models were constructed based on machine learning methods for predicting liquid film thickness. Comparative results indicated that the ANN prediction model exhibited higher accuracy, with a model determination coefficient (<em>R</em><sup>2</sup>) reaching 0.99. Validation by comparing measured and predicted values under typical conditions for liquid film thickness showed that the machine learning-based prediction error was approximately 9.7%. This approach rapidly predicted adsorbed liquid film thickness on copper surfaces subjected to atmospheric humid and hot NaCl deposition.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"18 ","pages":"Pages 76-84"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144184927","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: 0

Long-term oxidation resistance of a Ti65 alloy with Cr2AlC coating by magnetron sputtering 磁控溅射制备Cr2AlC涂层Ti65合金的长期抗氧化性能

Corrosion Communications Pub Date : 2025-06-01 DOI: 10.1016/j.corcom.2024.01.005

Ke Ma , Yang Li , Jingjing Li , Jinming Wang , Jingjun Xu , Jun Zuo , Meishuan Li

{"title":"Long-term oxidation resistance of a Ti65 alloy with Cr2AlC coating by magnetron sputtering","authors":"Ke Ma , Yang Li , Jingjing Li , Jinming Wang , Jingjun Xu , Jun Zuo , Meishuan Li","doi":"10.1016/j.corcom.2024.01.005","DOIUrl":"10.1016/j.corcom.2024.01.005","url":null,"abstract":"<div><div>In this study, novel high-quality Cr<sub>2</sub>AlC coating was fabricated on Ti65 alloy substrate as its protective oxidation resistance coating. Isothermal oxidation tests were performed at 650 and 750 °C for up to 400 h in air. The results indicated that Ti65 alloy underwent severe oxidation at 750 °C, accompanied by the presence of the cracking and exfoliating of the oxide scale during oxidation. Compared to the bare Ti65 substrate, the coated samples revealed more excellent oxidation resistance, meeting the parabolic law with low oxidation rate constants of 8.70×10<sup>−13</sup> kg<sup>2</sup>·m<sup>−4</sup>·s<sup>−1</sup> at 650 °C and 2.80×10<sup>−13</sup> kg<sup>2</sup>·m<sup>−4</sup>·s<sup>−1</sup> at 750 °C. At the surface, Al preferentially oxidized to form the protective Al<sub>2</sub>O<sub>3</sub> layer and synchronously Cr<sub>7</sub>C<sub>3</sub> sublayer, retarding the inward diffusion of oxygen and presenting excellent oxidation resistance. Besides, at the coating/substrate interface, Al diffused from Cr<sub>2</sub>AlC coating into the substrate to form an Al-rich layer in substrate adjacent to the coating/substrate interface. Due to the Al consumption, Cr-carbide and nitride, as well as TiN, were thereby formed at the interface reaction layer, which could act as a barrier for the interdiffusion process.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"18 ","pages":"Pages 66-75"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144184926","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: 0

In vitro degradation, photo-activated antibacterial activity of sodium copper chlorophyllin crosslinked-polysilane composite coating on magnesium alloys 叶绿素铜钠-聚硅烷复合涂层在镁合金上的体外降解及光激活抗菌活性研究

Corrosion Communications Pub Date : 2025-06-01 DOI: 10.1016/j.corcom.2024.07.003

Lan-Yue Cui , Wei Wang , Zhen-Yu Zhang , Xue-Wen Jiang , Yu-Kun Du , Bo Liu , Shuo-Qi Li , Cheng-Bao Liu , Yong-Ming Xi , Rong-Chang Zeng

{"title":"In vitro degradation, photo-activated antibacterial activity of sodium copper chlorophyllin crosslinked-polysilane composite coating on magnesium alloys","authors":"Lan-Yue Cui , Wei Wang , Zhen-Yu Zhang , Xue-Wen Jiang , Yu-Kun Du , Bo Liu , Shuo-Qi Li , Cheng-Bao Liu , Yong-Ming Xi , Rong-Chang Zeng","doi":"10.1016/j.corcom.2024.07.003","DOIUrl":"10.1016/j.corcom.2024.07.003","url":null,"abstract":"<div><div>Non-invasive inactivation of bacteria by photodynamic therapy (PDT) and photothermal therapy (PTT) has been recently concerned for biomaterials. A polymethyltrimethoxysilane (PMTMS)-crosslinked sodium copper chlorophyllin (SCC) coating was prepared on micro arc oxidation (MAO) coated magnesium alloy AZ31 by one-step dipping method. Results showed that the MAO/PMTMS-SCC coating had high corrosion resistance with two magnitudes decrease in corrosion current density. Profound physical barrier and sealing effects of PMTMS-SCC coating in the initial stage of immersion prevented in-diffusion of Cu<sup>2+</sup>, thus, primeval renegaded Cu was released to corrosive solution, instead of triggering galvanic corrosion. Antibacterial ratios under irradiation of 808 nm near infrared light against <em>E. coli</em> and <em>S. aureus</em> were 99.6% and 99.1%, respectively, which is ascribed to a triple antibacterial mechanism. Such a composite coating also displays high biocompatibility, which will promote the application of magnesium alloys in biomedical fields.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"18 ","pages":"Pages 54-65"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144184923","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: 0

Effects of ultrasonic treatment and current pulse frequency on properties of micro-arc oxidation coating on Mg alloy LAZ931 超声处理和电流脉冲频率对镁合金la931微弧氧化涂层性能的影响

Corrosion Communications Pub Date : 2025-03-01 DOI: 10.1016/j.corcom.2024.01.003

Yishun Tian , Di Mei , Zhipeng Liu , Shuhao Xu , Jiayin Zhao , Haitao Xie , Jinxue Liu , Yang Xiao , Shijie Zhu , Shaokang Guan

引用次数: 0

Cellular automata modeling on uniform corrosion behavior of solid copper in gallium-based liquid metals 固体铜在镓基液态金属中均匀腐蚀行为的元胞自动机模拟

Corrosion Communications Pub Date : 2025-02-24 DOI: 10.1016/j.corcom.2024.02.004

Yujie Ding , Yuntao Cui , Wei Rao , Jing Liu

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Comparison of corrosion behavior of X52 steel in liquid and supercritical CO2 transport environments with multiple impurities X52钢在含多种杂质的液体和超临界CO2输送环境中的腐蚀行为比较

Corrosion Communications Pub Date : 2025-02-08 DOI: 10.1016/j.corcom.2024.01.006

Yulong Zhao, Tiancong Ding, Shuai Yang, Jiawei Li, Xiaofeng Zhao, Xueqiang Lin, Chong Sun, Jianbo Sun

引用次数: 0

Enhancing corrosion resistance of MAO coatings on Al alloy LY12 through in situ co-doping with zinc phosphate and cerium phosphate 原位共掺杂磷酸锌和磷酸铈增强LY12铝合金MAO涂层的耐蚀性

Corrosion Communications Pub Date : 2025-01-31 DOI: 10.1016/j.corcom.2024.10.001

Chao Yang , Tao Ying , Aihui Huang , Jian Huang , Pinghu Chen , Paul K. Chu , Xiaoqin Zeng

{"title":"Enhancing corrosion resistance of MAO coatings on Al alloy LY12 through in situ co-doping with zinc phosphate and cerium phosphate","authors":"Chao Yang , Tao Ying , Aihui Huang , Jian Huang , Pinghu Chen , Paul K. Chu , Xiaoqin Zeng","doi":"10.1016/j.corcom.2024.10.001","DOIUrl":"10.1016/j.corcom.2024.10.001","url":null,"abstract":"<div><div>Corrosion of aluminum (Al) alloys during service limits many applications. Micro-arc oxidation (MAO) coatings can enhance corrosion resistance, but porous defects in the films undermine their effectiveness. Here, by mixing a phosphate electrolyte with soluble Zn and Ce salts, zinc phosphate and cerium phosphate co-doped MAO corrosion-resistant coating is prepared on Al alloy LY12. Zinc phosphate and cerium phosphate are incorporated <em>in situ</em> to form an amorphous encapsulated nanocrystalline structure. During long-term corrosion, Zn<sup>2+</sup> is released and deposited as corrosion products Zn(OH)<sub>2</sub> to cover weak corrosion micro-regions in the coating. Simultaneously, Ce<sup>3+</sup> released from MAO coating co-doped with zinc phosphate/cerium phosphate forms Zn(OH)<sub>2</sub>/Ce(OH)<sub>3</sub> due to the small solubility product <em>K</em><sub>sp</sub> to further enhance corrosion resistance. Compared to pristine Al alloy, corrosion potential increases from -1.306 to -0.819 V<sub>SCE</sub>, and corrosion current density decreases by 4 orders of magnitude from 2.6 × 10<sup>−6</sup> to 2.5 × 10<sup>−10</sup> A·cm<sup>−2</sup>. Co-doped MAO coating significantly enhances corrosion resistance of Al alloy LY12 and shows great potential for a wide range of applications.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"17 ","pages":"Pages 35-43"},"PeriodicalIF":0.0,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143445646","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: 0

Enhancing anti-corrosion performance of anodic film on aluminum-lithium alloy AA2099-T83 by post-treatment in lithium oxalate solutions near room temperature 在接近室温的草酸锂溶液中后处理提高铝锂合金AA2099-T83阳极膜的防腐性能

Corrosion Communications Pub Date : 2025-01-13 DOI: 10.1016/j.corcom.2023.11.007

Yanlong Ma , Mengting Zou , Bingyuan Yang , Jiangrong Yan , Qin Zhu , Yun Jiang , Haisheng Wu , Liang Wu

{"title":"Enhancing anti-corrosion performance of anodic film on aluminum-lithium alloy AA2099-T83 by post-treatment in lithium oxalate solutions near room temperature","authors":"Yanlong Ma , Mengting Zou , Bingyuan Yang , Jiangrong Yan , Qin Zhu , Yun Jiang , Haisheng Wu , Liang Wu","doi":"10.1016/j.corcom.2023.11.007","DOIUrl":"10.1016/j.corcom.2023.11.007","url":null,"abstract":"<div><div>Anodic film formed on aluminum-lithium alloy AA2099-T83 is post-treated in various lithium oxalate (Li<sub>2</sub>C<sub>2</sub>O<sub>4</sub>) solutions to enhance its corrosion resistance. The anodic film can be rapidly sealed near room temperature and there is an interaction between the sealing temperature and salt concentration. Particularly, the alloy specimens treated in 0.03 mol/L Li<sub>2</sub>C<sub>2</sub>O<sub>4</sub> solution at 40 or 50 °C for 30 min did not show any visible corrosion pits even after 1000 h of neutral salt spray tests. The sealed anodic film typically shows lamellar surface features and a dense top layer of a few hundred nanometers thickness. The sealing products are mainly composed of boehmite, layered double hydroxides (LDHs) and amorphous hydroxides. The high corrosion resistance of the treated alloy is ascribed to the formation of boehmite and LDHs (or amorphous hydroxides) in the anodic film and the self-healing characteristic of the coating system. The present work suggests that it is possible to achieve high corrosion resistance for anodized aluminum-lithium alloys by post-treatment in appropriate lithium oxalate solutions near room temperature.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"18 ","pages":"Pages 34-43"},"PeriodicalIF":0.0,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143792705","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}

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Effects of temperature and acetic acid on electrochemical corrosion behavior of steel X80 温度和醋酸对X80钢电化学腐蚀行为的影响

Corrosion Communications Pub Date : 2025-01-03 DOI: 10.1016/j.corcom.2023.12.003

Yadong Li , Wanpeng Yao , Siquan Wang , JianJun Pang , Yan Li

引用次数: 0

Unraveling the local stress corrosion cracking behavior of Alloy 690 plug in a high-temperature concentrated alkaline solution 揭示690合金塞在高温浓碱性溶液中的局部应力腐蚀开裂行为

Corrosion Communications Pub Date : 2024-12-09 DOI: 10.1016/j.corcom.2024.12.001

Baoliang Cheng , Jin Tao , Jingshan Deng , Botao Xu , Xinhe Xu , Songhan Nie , Tongming Cui , Junjie Chen , Zhanpeng Lu

{"title":"Unraveling the local stress corrosion cracking behavior of Alloy 690 plug in a high-temperature concentrated alkaline solution","authors":"Baoliang Cheng , Jin Tao , Jingshan Deng , Botao Xu , Xinhe Xu , Songhan Nie , Tongming Cui , Junjie Chen , Zhanpeng Lu","doi":"10.1016/j.corcom.2024.12.001","DOIUrl":"10.1016/j.corcom.2024.12.001","url":null,"abstract":"<div><div>The stress corrosion cracking (SCC) performance of the sealed Alloy 690 plugs was investigated in 350 °C deoxygenated concentrated alkaline solution. Sealing was used to expose only the inner surface of the plug, preventing direct contact between the tube sheet and the concentrated alkaline solution. After exposure for 1000 h, several intergranular cracks were observed on the inner wall of the plugs. Stress corrosion cracks primarily appear in some regions on the inner wall, which are highly deformed and advanced along the random grain boundary. The internal oxide layer formed in the high-temperature alkaline solution was not dense; it comprised a composite oxide with multiple layers. The outermost layer consisted of Fe-Cr-Ni oxide particles, and beneath it was an uneven Ni-rich layer, followed by a thin Cr-rich layer closest to the matrix. High kernel average misorientation in the heavily deformed region and a lack of chromium carbide contributed to crack initiation and propagation of Alloy 690 plug in hot concentrated alkaline solutions.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"17 ","pages":"Pages 12-23"},"PeriodicalIF":0.0,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143144215","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: 0