{"title":"Study of the Corrosion Behavior Variability of 3003 Aluminum Alloys From Different Sources in Semiconductor Process","authors":"Yongxiang Liu, Ji Chen, Yang Zhao","doi":"10.1002/maco.202514881","DOIUrl":"https://doi.org/10.1002/maco.202514881","url":null,"abstract":"<div>\u0000 \u0000 <p>This study investigates the corrosion resistance of 3003 aluminum alloys from different sources used in the semiconductor industry, exploring their behavior in both liquid and gas environments. The corrosion mechanisms were analyzed through microscopic characterization and calculations. The results reveal significant variations in the distribution of particles, with notable differences in the number and area of Al<sub>6</sub>(Mn,Fe) phase. The slightly higher electrochemical potential of the Al<sub>6</sub>(Mn,Fe) phase compared to the matrix was identified as a key factor accelerating corrosion in liquid environments. Additionally, the lower saturation vapor pressure of silicon chloride led to the accumulation of minimal corrosion products on the surface of α-Al<sub>12</sub>(Mn,Fe)<sub>3</sub>Si phase.</p></div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 10","pages":"1497-1509"},"PeriodicalIF":2.0,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145204838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effect of Chloride Concentrations on the Corrosion Resistance of a Novel Al-Alloyed 3Ni Weathering Steel in Simulated Tropical Marine Environment","authors":"Wei Liao, Yiyao Kang, Weipeng Ke, Baojun Dong, Lin Zhao, Xuesong Leng, Hongsheng Chen","doi":"10.1002/maco.202514825","DOIUrl":"https://doi.org/10.1002/maco.202514825","url":null,"abstract":"<div>\u0000 \u0000 <p>A novel Al-alloyed 3Ni steel was developed to enhance the corrosion performance of marine weathering steel. Its corrosion resistance was evaluated in simulated tropical marine environment with different chloride concentrations. Results show that the formed corrosion film exhibits a dual-layer structure: porous outer layer and compact inner layer. The corrosion resistance is closely associated with the content of NiFe<sub>2</sub>O<sub>4</sub> and FeAl<sub>2</sub>O<sub>4</sub> phases in the corrosion film. As chloride concentration increases, the FeAl<sub>2</sub>O<sub>4</sub> content steadily rises, while the NiFe<sub>2</sub>O<sub>4</sub> content initially increases and then decreases. The exceptional corrosion resistance of this steel is primarily attributed to the compactness and electronegativity of the protective inner layer.</p></div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 10","pages":"1420-1436"},"PeriodicalIF":2.0,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145204837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effect of Laser Power on the Wear and Corrosion Resistance of Melted Cladding Layer of Fe–0.3C–15Cr–1Ni Alloy","authors":"Wenbin Lin, Tieming Guo, Yiwen Zhang, Ruihua Zhang, Yan Yin, Zehong Liu, Xiangbin Yi, Qiao Qiu","doi":"10.1002/maco.202414762","DOIUrl":"https://doi.org/10.1002/maco.202414762","url":null,"abstract":"<div>\u0000 \u0000 <p>Single-layer multipass Fe–0.3C–15Cr–1Ni alloy cladding layers were prepared on the surface of 3Cr13 martensitic stainless steel using different laser powers. The effects of laser power on the size of dendrite morphology, carbide size and distribution, and wear and corrosion resistance of Fe–0.3C–15Cr–1Ni alloy cladding were investigated. With the increase of laser power, the number of carbides gradually decreases, and the microhardness, wear resistance, and corrosion resistance of the cladding layer show a pattern of increasing and then decreasing. When the laser power is 1400 W, the hardness, wear resistance, and corrosion resistance of the cladding layer are the best, and the stability of the coefficient of friction is the best. It has the largest pitting potential, the widest width of the passivation zone, the lowest reactivation rate, a significant increase in matrix impedance, smaller pits after immersion corrosion, and the best corrosion resistance. This is due to 1400-W microstructure uniformity being better, the alloying elements in the matrix, and carbide reasonable distribution, thus improving the matrix wear and corrosion resistance.</p></div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 10","pages":"1510-1525"},"PeriodicalIF":2.0,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145204835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Microstructure and Corrosion Resistance of Ni-Cr-Mo-Si/Cr3C2 Coatings Prepared by Laser Cladding","authors":"Yuming Fu, Hao Dong, Shunxin Ma, Jiahao Zhang, Lijuan Zheng, Chen Fu","doi":"10.1002/maco.202514914","DOIUrl":"https://doi.org/10.1002/maco.202514914","url":null,"abstract":"<div>\u0000 \u0000 <p>This paper enhances the corrosion resistance of Q235A steel in a seawater environment by employing laser cladding technology to prepare Ni-Cr-Mo-Si/<i>x</i> Cr<sub>3</sub>C<sub>2</sub> (<i>x</i> = 0, 5, 15 wt%) hydrophobic coatings on its surface. The results indicate that the introduction of Cr<sub>3</sub>C<sub>2</sub> substantially refines the microstructure of the coating and forms additional reinforcing phases, primarily including Cr<sub>23</sub>C<sub>6</sub>, Ni<sub>3</sub>C, and Cr<sub>1.12</sub>Ni<sub>2.88</sub>. The addition of an appropriate amount of Cr<sub>3</sub>C<sub>2</sub> significantly contributed to the enhanced formation of hard phases. Specifically, when the Cr<sub>3</sub>C<sub>2</sub> content is 15%, the average hardness reached a maximum of 395.2 HV<sub>0.5</sub>. Combining wettability tests with electrochemical results, the Ni-Cr-Mo-Si/Cr<sub>3</sub>C<sub>2</sub> coatings show lower surface energy, improved hydrophobicity, and reduced corrosion rates. When the Cr<sub>3</sub>C<sub>2</sub> content reaches 15%, the synergistic effect of hydrophobicity and carbides optimized the corrosion resistance of the coating. Therefore, this paper reveals the multifaceted roles of Cr<sub>3</sub>C<sub>2</sub> in refining the microstructure and improving corrosion resistance.</p></div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 10","pages":"1526-1537"},"PeriodicalIF":2.0,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145204836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"High-Temperature Oxidation Kinetics and Behavior of Ti-0.3Mo-0.8Ni Alloy","authors":"Ying Han, Wei Yu, Qing Guo, Zhicheng Cheng","doi":"10.1002/maco.202414667","DOIUrl":"https://doi.org/10.1002/maco.202414667","url":null,"abstract":"<div>\u0000 \u0000 <p>Oxidation of titanium during hot working processes is an important performance factor. This study investigated the oxidation behavior of the Ti-0.3Mo-0.8Ni alloy in air at various temperatures ranging from 850°C to 950°C for different times. The oxidation kinetics were determined by isothermal oxidation weight gain experiments. Results showed that the oxidation kinetics of the Ti-0.3Mo-0.8Ni alloy approximately followed a parabolic law. The oxidation activation energy was 238.73 kJ/mol. The oxide scales were formed on the surface of the alloy at all experimental temperatures, and the oxide scales mainly consisted of Ti<sub>6</sub>O, Ti<sub>3</sub>O, Ti<sub>2</sub>O<sub>3</sub>, and TiO<sub>2</sub>. TiO<sub>2</sub> dominates at each oxidation temperature. Below T<sub>β</sub>, the presence of the Mo element effectively improved the oxidation resistance of the alloy. Above T<sub>β</sub>, the oxidation resistance decreased with increasing temperature, which was mainly due to the enrichment of the Mo element in the β phase with increasing temperature, resulting in the decrease in Mo content in the substrate.</p></div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 9","pages":"1395-1405"},"PeriodicalIF":2.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144935421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Songbai He, Hongyu Wu, Haiyan Qiu, Guihong Lan, Bo Xu, Keyu Pu, Hailong Yu, Ling Chen, Ketao Cai, Weilin Deng
{"title":"Spatial Heterogeneity and Mechanisms of Microbiologically Influenced Corrosion in Shale Gas Gathering Pipeline Accumulated Liquid Environment","authors":"Songbai He, Hongyu Wu, Haiyan Qiu, Guihong Lan, Bo Xu, Keyu Pu, Hailong Yu, Ling Chen, Ketao Cai, Weilin Deng","doi":"10.1002/maco.202414726","DOIUrl":"https://doi.org/10.1002/maco.202414726","url":null,"abstract":"<div>\u0000 \u0000 <p>In this study, the spatial distribution characteristics and mechanisms of microbiologically influenced corrosion (MIC) in the accumulation liquid environment of shale gas-gathering pipelines were systematically investigated. A simulation device was utilized, and electrochemical tests, gas-liquid analysis, and X-ray diffraction (XRD) were conducted to explore the relationship between biofilm formation and corrosion behavior in different spatial directions. The results indicate that biofilm formation at the 6 o'clock direction occurs earlier, which triggers a high risk of pitting, with an average rate of 0.1922 mm/a. In contrast, biofilm development at the 4 and 8 o'clock directions lags initially, but due to metabolite accumulation, the corrosion rate increases to 0.2608–0.2625 mm/a, with a risk of hydrogen-induced cracking (HIC). Notably, no significant biofilm was observed at 0.5 cm below the liquid level, but H<sub>2</sub>S and CH<sub>4</sub> produced by microbial metabolism contributed to the risk of HIC, with a late-stage corrosion rate of 0.3443 mm/a.</p></div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 9","pages":"1327-1341"},"PeriodicalIF":2.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144935420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Evelina María Linardi, Dennis Valdez Tordoya, Jean Ramon Collet-Lacoste
{"title":"About the Electrochemical Mechanism of Aluminum Corrosion in Acid Media by Electrochemical Impedance Spectroscopy","authors":"Evelina María Linardi, Dennis Valdez Tordoya, Jean Ramon Collet-Lacoste","doi":"10.1002/maco.202514809","DOIUrl":"https://doi.org/10.1002/maco.202514809","url":null,"abstract":"<div>\u0000 \u0000 <p><i>AC</i>-impedance measurements were performed in the alloy AA6061 in a mixture of sulfuric acid and sodium sulfate 0.05 M at pH of 1.45, 2 and 3, in the potential range of –0.8 V and 1.8 <i>V</i><sub>SSE</sub>. For all the ranges of potential and pH, the impedance of the system is characterized by three time constants, i.e., a capacitive behavior at high frequencies, an inductive loop at intermediate frequencies and a capacitive behavior at low frequencies. All impedance diagrams obtained were fitted with a single equivalent circuit. A theoretical impedance expression is presented based on a four-reactions physical model. Based on certain assumptions, this model allows evaluating the thickness of the film, the concentration and the velocity of charge carriers, as well as the potential distribution between the film and the interfaces and the electrical field on the oxide.</p></div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 9","pages":"1353-1364"},"PeriodicalIF":2.0,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144935464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Andreas Heyn, Stefan Kotula, Gino Ebell, Martin Babutzka
{"title":"Results of a Round Robin Test for the Determination of Polarization Resistances on Differently Weathered Zinc Samples Using Gel Electrolytes","authors":"Andreas Heyn, Stefan Kotula, Gino Ebell, Martin Babutzka","doi":"10.1002/maco.202414696","DOIUrl":"https://doi.org/10.1002/maco.202414696","url":null,"abstract":"<p>This article presents the results of a round robin test throughout Germany with 19 participating institutions. Corrosion product layer resistances (<i>R</i><sub>L</sub>) were determined on two differently weathered pure zinc samples and a sample activated with NaOH by means of electrochemical measurement of the linear polarization resistance (LPR) using agar-based gel electrolytes. The round robin test was organized by the Bundesanstalt für Materialforschung und -prüfung (BAM) in Berlin. The measurements were carried out by the participants in the period from May to July 2021. The results are summarized in this article comprising an assessment of the reproducibility and repeatability of the measurements. The methodology is suitable for distinguishing zinc surfaces after exposure to different atmospheres based on the corrosion product layer resistances (<i>R</i><sub>L</sub>). In addition, possible problems in the application of the method were identified, and solutions for improving reproducibility and repeatability are discussed. The results and knowledge from the round robin test are incorporated into a new test standard (DIN 50023:2024-07) for this measurement method.</p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 9","pages":"1294-1305"},"PeriodicalIF":2.0,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.202414696","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144934897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Influence of Heat Annealing on the Microstructural and Electrochemical Characteristics of AlCoCrFeNi2.1 Eutectic High Entropy Alloy","authors":"Mohammadreza Hadavi, Saeed Nikabadi","doi":"10.1002/maco.202414718","DOIUrl":"https://doi.org/10.1002/maco.202414718","url":null,"abstract":"<div>\u0000 \u0000 <p>The influence of annealing on the phase structure and electrochemical properties of the AlCoCrFeNi<sub>2.1</sub> eutectic high entropy alloy produced by the induction casting method was investigated. The annealing heat treatment was conducted at 1150°C for 2 and 10 h. XRD and FESEM/EDS results showed a dual-phasic crystal structure with FCC and B2 (Al-rich) phases, with annealing reducing the B2 phase. Potentiodynamic polarization investigations revealed a decrease in corrosion current density from 1.81 × 10⁻⁶ (as-cast) to 9.42 × 10⁻⁷ (2 h) and 5.71 × 10⁻⁷ A/cm² (10 h), indicating significant improvement in corrosion resistance. EIS data corroborated these findings, with charge transfer resistance (Rct) increasing from 1.01E5 (as-cast) to 2.80E5 Ω. cm² (10 h). Overall, reducing the B2 phase leads to a decrease in corrosion pits on the corroded surface.</p></div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 9","pages":"1376-1384"},"PeriodicalIF":2.0,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144935398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Contents: Materials and Corrosion. 4/2025","authors":"","doi":"10.1002/maco.202570043","DOIUrl":"https://doi.org/10.1002/maco.202570043","url":null,"abstract":"","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 4","pages":"482-484"},"PeriodicalIF":1.6,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.202570043","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143809680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}