Corrosion CommunicationsPub Date : 2026-06-01Epub Date: 2025-09-22DOI: 10.1016/j.corcom.2024.12.005
Yuzhuo Li , Peng Zhang , Yingfei Yang , Shengfeng Zhou , Pan Ren , Qiwei Wang , Wei Li
{"title":"Oxidation behavior of nanocrystalline Pt-γ′ coating with embedded Al2O3 nanoparticles at 1050 °C","authors":"Yuzhuo Li , Peng Zhang , Yingfei Yang , Shengfeng Zhou , Pan Ren , Qiwei Wang , Wei Li","doi":"10.1016/j.corcom.2024.12.005","DOIUrl":"10.1016/j.corcom.2024.12.005","url":null,"abstract":"<div><div>Nanocrystalline Pt-γ′ coatings (NC Pt-γ′) with embedded Al<sub>2</sub>O<sub>3</sub> nanoparticles were fabricated on single-crystal superalloy through reactive magnetron sputtering to explore oxidation behavior of NC Pt-γ′ at 1050 °C. Results indicate that Al<sub>2</sub>O<sub>3</sub> scale was formed on surface of the coarse-grain structured Pt-γ′ coating. However, as oxidation time is prolonged, Al content in the coating decreases, and a multi-layered oxide scale is formed on the surface. In contrast, NC Pt-γ′ coating exhibits high oxidation resistance due to a large number of boundaries provided by nanocrystalline structure, which facilitates rapid diffusion of Al. In addition, nano Al<sub>2</sub>O<sub>3</sub> particles were precipitated in the coating due to mild addition of O into the coating. The nanoparticles distributed at grain boundaries of the coating can inhibit the growth of grains at high temperature.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"22 ","pages":"Pages 101-111"},"PeriodicalIF":9.5,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148184501","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}
Corrosion CommunicationsPub Date : 2026-06-01Epub Date: 2025-09-01DOI: 10.1016/j.corcom.2025.03.002
Zelong Luo , Chaochao Xue , Chaowei Guo , Litao Chang , En-Hou Han , Wenjun Kuang
{"title":"Oxidation behavior of PM-HIPed Alloy 625 in high-temperature supercritical carbon dioxide","authors":"Zelong Luo , Chaochao Xue , Chaowei Guo , Litao Chang , En-Hou Han , Wenjun Kuang","doi":"10.1016/j.corcom.2025.03.002","DOIUrl":"10.1016/j.corcom.2025.03.002","url":null,"abstract":"<div><div>Oxidation behavior of PM-HIPed Alloy 625 with polished and ground surfaces in supercritical CO₂ was investigated. The polished surface formed an outer Fe-rich oxide layer and an inner Cr-rich oxide layer, whilst the ground surface developed a thicker, continuous chromia layer. <em>δ</em>-phase precipitation occurred in the sub-surface layer due to element segregation caused by oxidation. A greatly denser <em>δ</em>-phase was observed on the ground surface due to accelerated Cr diffusion by the deformation layer. In addition, NbC particles tend to be fully oxidized when exposed on the surface, forming a hollow-shell structure.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"22 ","pages":"Pages 81-90"},"PeriodicalIF":9.5,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148184505","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}
Corrosion CommunicationsPub Date : 2026-06-01Epub Date: 2025-08-22DOI: 10.1016/j.corcom.2024.12.004
Junhang Chen , Yali Feng , Chenghui Yin , Hao Zhang , Yao Tan , Chaofang Dong , Kui Xiao
{"title":"Understanding impacts of condensation on corrosion of ultra-high-strength steel based on atmospheric corrosion sensors","authors":"Junhang Chen , Yali Feng , Chenghui Yin , Hao Zhang , Yao Tan , Chaofang Dong , Kui Xiao","doi":"10.1016/j.corcom.2024.12.004","DOIUrl":"10.1016/j.corcom.2024.12.004","url":null,"abstract":"<div><div>Through natural exposure tests and corrosion monitoring technology, the differences between surface microenvironment and air environment of ultra-high-strength steel in three environments: outdoor, shutter and indoor air conditioning were compared. Results unveil that the corrosion contribution rate of condensation is 72.1% in the outdoor environment. In a shielded environment, corrosion of the material is less affected by radiative cooling at night, but more affected by ambient temperature, relative humidity, and surface adsorbent. Based on the research results, an atmospheric corrosion model of ultra-high-strength steel in exposed and shaded environments was established.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"22 ","pages":"Pages 68-80"},"PeriodicalIF":9.5,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148184504","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}
Corrosion CommunicationsPub Date : 2026-06-01Epub Date: 2025-09-12DOI: 10.1016/j.corcom.2025.04.002
Zhiwei Chen , Hong Chen , Yuanqing Jin , Xiaochuan Wang , Baikang Zhu , Wei Zhang , Weihua Li
{"title":"Simulations of corrosion evolution of B30 Cu-Ni alloy in a marine environment using cellular automaton","authors":"Zhiwei Chen , Hong Chen , Yuanqing Jin , Xiaochuan Wang , Baikang Zhu , Wei Zhang , Weihua Li","doi":"10.1016/j.corcom.2025.04.002","DOIUrl":"10.1016/j.corcom.2025.04.002","url":null,"abstract":"<div><div>B30 Cu-Ni alloy is employed extensively in marine environments. Nevertheless, it is imperative to elucidate its corrosion mechanism due to the severity of corrosion issues. Corrosion mechanism of B30 Cu-Ni alloy was investigated through integration of experimental and simulation approaches. It has been observed that in a seawater environment, corrosion products formed on the surface of B30 Cu-Ni alloy are an oxide film, which effectively mitigates corrosion rate. Electrochemical behavior of this film can be categorized into three stages: incomplete formation stage, stable development stage, and local failure stage. Corrosion kinetics of B30 Cu-Ni alloy in seawater was simulated and predicted using two- and three-dimensional cellular automaton corrosion models, with corrosion loss as boundary conditions. Results showed that the two cellular automaton models not only allowed visualization of mesoscale corrosion morphology, but facilitated quantitative simulation of the corrosion rate for B30 Cu-Ni alloy. Deviations between predictions of the two-dimensional cellular automaton model and actual corrosion rate are approximately 5%. In comparison, deviations observed in the three-dimensional cellular automaton model are further 2% lower. The present study elucidates the corrosion mechanism of B30 Cu-Ni alloy at mesoscale, thereby providing theoretical substantiation for effective corrosion protection.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"22 ","pages":"Pages 91-100"},"PeriodicalIF":9.5,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148184506","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}
Corrosion CommunicationsPub Date : 2026-06-01Epub Date: 2025-10-24DOI: 10.1016/j.corcom.2025.01.003
Yuwei Liu , Chenzhi Xing , Jian Zhang , Yang Duan , Zhenyao Wang , Chuan Wang , Quanzhong Guo , Shuo Cao
{"title":"Corrosion behavior of eight types of steels in simulated extreme cold atmosphere","authors":"Yuwei Liu , Chenzhi Xing , Jian Zhang , Yang Duan , Zhenyao Wang , Chuan Wang , Quanzhong Guo , Shuo Cao","doi":"10.1016/j.corcom.2025.01.003","DOIUrl":"10.1016/j.corcom.2025.01.003","url":null,"abstract":"<div><div>Corrosion behavior of eight types of steels in a simulated extreme cold atmosphere was examined utilizing mass loss analysis, scanning electron microscopy (SEM), Raman spectroscopy, electrochemical measurements and density functional theory (DFT) calculations. Findings reveal that corrosion kinetics of these carbon steels is highly related to the power function relationship, expressed as Δ<em>m</em> = <em>At<sup>n</sup></em>. After 240 h of corrosion, steel 6#, 7#, and 8#, which contain higher concentrations of Cu, Cr, and Ni, exhibited lower corrosion rates than that of the remaining five carbon steels. Primary compositions of rust layers formed on all eight steels comprised <em>α</em>-FeOOH, <em>α</em>-Fe<sub>2</sub>O<sub>3</sub>, <em>γ</em>-FeOOH, <em>γ</em>-Fe<sub>2</sub>O<sub>3</sub>, and Fe<sub>3</sub>O<sub>4</sub>. Notably, sulfate promotes the preferential formation of <em>α</em>-FeOOH, while low temperatures facilitate emergence of <em>α</em>-Fe<sub>2</sub>O<sub>3</sub>. Furthermore, the presence of uniform, fine grains without distortion, coupled with evenly distributed cementite, contributes to the development of dense and uniform corrosion products. Among the rust layers observed, the thick and uniform layers, characterized by minimal holes and longitudinal cracks, exhibit the most effective rust inhibition properties.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"22 ","pages":"Pages 145-155"},"PeriodicalIF":9.5,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148230723","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}
Corrosion CommunicationsPub Date : 2026-06-01Epub Date: 2025-10-24DOI: 10.1016/j.corcom.2025.01.004
Tinghui Guo , Kai Zhu , Qi Zeng , Xingpeng Liao , Yao Yang , Tao Ying , Xiaoqin Zeng
{"title":"Corrosion resistance and microstructure of 3D printed magnesium alloy regulated by heat treatment","authors":"Tinghui Guo , Kai Zhu , Qi Zeng , Xingpeng Liao , Yao Yang , Tao Ying , Xiaoqin Zeng","doi":"10.1016/j.corcom.2025.01.004","DOIUrl":"10.1016/j.corcom.2025.01.004","url":null,"abstract":"<div><div>Corrosion behavior of 3D printed Mg-3Nd-1Gd-0.2 Zn alloy in three states, namely 3D print, 3D print-T4, and 3D print-T6, was investigated. The 3D printed alloys were characterized using SEM, XRD, and other techniques to demonstrate an improved corrosion resistance achieved through heat treatment. Complete dissolution of Mg<sub>41</sub>Nd<sub>5</sub> phase in 3D printed magnesium (Mg) alloy resulted in a more uniform corrosion morphology. It improves corrosion resistance of the alloy. Moreover, reduction in surface potential of Mg<sub>3</sub>(Nd,Gd) phase after heat treatment contributes to deceleration of galvanic corrosion, while the absence of Mg<sub>41</sub>Nd<sub>5</sub> after heat treatment slows down localized corrosion. Compared to the 3D print state, T4 and T6 treated alloys exhibit the formation of protective oxide films during corrosion. Meanwhile, after heat treatment, T4 and T6 alloys have thick and smooth corrosion product films, which may enhance corrosion resistance. In general, corrosion resistance of Mg-3Nd-1Gd-0.2 Zn alloy is improved after heat treatment.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"22 ","pages":"Pages 156-165"},"PeriodicalIF":9.5,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148230724","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}
Corrosion CommunicationsPub Date : 2026-06-01Epub Date: 2025-10-21DOI: 10.1016/j.corcom.2024.12.007
Hetian Chen , Junjie Chen , Hao Liu , Hao Huang , Xinhe Xu , Zhou Zhao , Tongming Cui , Sergio Lozano-Perez , Zhanpeng Lu
{"title":"Enhancing pitting corrosion resistance of ferritic stainless steel 430 by magnetic-electrochemical coupled surface modification","authors":"Hetian Chen , Junjie Chen , Hao Liu , Hao Huang , Xinhe Xu , Zhou Zhao , Tongming Cui , Sergio Lozano-Perez , Zhanpeng Lu","doi":"10.1016/j.corcom.2024.12.007","DOIUrl":"10.1016/j.corcom.2024.12.007","url":null,"abstract":"<div><div>A magnetic-electrochemical coupled surface modification, i.e., magnetoelectropolishing (MEP), has been applied on ferritic stainless steel (SS) 430 using H<sub>2</sub>SO<sub>4</sub>/H<sub>3</sub>PO<sub>4</sub> electrolyte for improving pitting resistance. Pitting behavior and surface features of MEP specimen are compared to the results of the specimens processed by conventional mechanical polishing (MP) and electropolished (EP). EP and MEP reduced surface microhardness, residual stress and roughness compared to MP. EP and MEP significantly increased atomic Cr/Fe ratio, and Cr-base oxide and hydroxide fraction in the native passive film compared to MP specimen. MEP specimen had a slightly thicker native passive film than EP specimen. EIS results showed that MEP, rather than EP, could further raise passive film resistance <em>R</em><sub>f</sub> and charge-transfer resistance. The surface work function was elevated by EP and MEP, being higher in MEP specimen. Pitting resistance improved by EP showed a significant decrease in passive current density, while MEP showed an increase in pitting potential. The reduction in pitting initiation sites on MEP SS 430 is thought to be mainly because of the higher protection of the native passive film and lower surface electron activity, especially the higher fraction of Cr-based oxide and hydroxide in the native passive film.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"22 ","pages":"Pages 166-178"},"PeriodicalIF":9.5,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148230725","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}
Corrosion CommunicationsPub Date : 2026-06-01Epub Date: 2025-11-26DOI: 10.1016/j.corcom.2025.02.004
Jifeng Li, Guanhong Lei, Qian Xiao, Yong Zuo, Ye Dai, Xiang-Xi Ye
{"title":"Galvanic effects and interfacial corrosion of GH3535/316H dissimilar welded joint in high-temperature FLiNaK molten salt","authors":"Jifeng Li, Guanhong Lei, Qian Xiao, Yong Zuo, Ye Dai, Xiang-Xi Ye","doi":"10.1016/j.corcom.2025.02.004","DOIUrl":"10.1016/j.corcom.2025.02.004","url":null,"abstract":"<div><div>Corrosion behavior of dissimilar welded joints between 316H stainless steel (SS) and GH3535 alloy in FLiNaK molten salt at 700 °C was investigated and compared with that of individual alloys. 316H SS on the welded joint experienced more severe corrosion due to galvanic effects and element migration, with an approximately 40% increase in overall corrosion than individual 316H SS, despite similar maximum corrosion depths. Weld interfaces were identified as active corrosion sites. However, Fe and Ni deposition layers at these interfaces effectively inhibited further degradation, demonstrating high stability over 400 h in high-temperature molten salt environment.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"22 ","pages":"Pages 179-187"},"PeriodicalIF":10.7,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148553981","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}
Corrosion CommunicationsPub Date : 2026-06-01Epub Date: 2025-09-15DOI: 10.1016/j.corcom.2025.01.002
Yanyan Li , Xiangzhe Meng , Yuheng Li , Zehua Dong , Xinxin Zhang
{"title":"Microstructural heterogeneity and localized corrosion evolution of Al-Cu-Li alloy extrusion: Role of grain-stored energy","authors":"Yanyan Li , Xiangzhe Meng , Yuheng Li , Zehua Dong , Xinxin Zhang","doi":"10.1016/j.corcom.2025.01.002","DOIUrl":"10.1016/j.corcom.2025.01.002","url":null,"abstract":"<div><div>In the present work, microstructural heterogeneity and localized corrosion evolution of a recently developed Al-Cu-Li alloy extrusion were examined to correlate grain-stored energy (mainly reflecting dislocation density) with precipitation and localized corrosion evolution. Results reveal that high stored energy promotes precipitation within grain interior, which also enhances the continuity of precipitates at neighbouring grain boundary. Hence, localized corrosion of the alloy initiates by attacking boundaries in areas of high stored energy and then propagates into grain interiors with high stored energy, which finally leads to corroded bands along the extrusion direction.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"22 ","pages":"Pages 112-127"},"PeriodicalIF":9.5,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148184503","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}
Corrosion CommunicationsPub Date : 2026-06-01Epub Date: 2025-10-11DOI: 10.1016/j.corcom.2024.12.006
Lazuardi Akmal Islami , Anawati Anawati
{"title":"Investigating corrosion inhibition of aluminum alloy by green inhibitor propolis in 3.5% NaCl solution","authors":"Lazuardi Akmal Islami , Anawati Anawati","doi":"10.1016/j.corcom.2024.12.006","DOIUrl":"10.1016/j.corcom.2024.12.006","url":null,"abstract":"<div><div>Propolis, which has an antioxidant characteristic, is proposed as a green corrosion inhibitor for aluminum alloy (AA). The inhibition effect of propolis was studied on AA7075. Propolis concentration was varied for 0, 200, 400, 800, and 1200 mg/L, added to 3.5 wt.% NaCl solution. Corrosion behavior was investigated using electrochemical and mass loss tests. The potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) analysis revealed the significant corrosion inhibition effect obtained for propolis concentrations of 400 and 800 mg/L. From the electrochemical tests, propolis was considered a cathodic inhibitor as it caused a depression in the cathodic current densities approximately ten times. The gain of remarkable film resistance suggested that the inhibition mechanism was due to thickening of the surface film through adsorption of the propolis molecules. The adsorption behavior followed the Langmuir adsorption isotherm. The optimum inhibition efficiency measured from PDP, EIS, and mass loss data was obtained at 400 mg/L propolis. Propolis shows promise as corrosion inhibitor for Al alloys.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"22 ","pages":"Pages 128-135"},"PeriodicalIF":9.5,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148184502","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}