Corrosion Communications最新文献

{"title":"Microstructural essence of corrosion resistance in nugget zone of ultrasonic-assisted friction stir welded Al alloy 2024","authors":"Lei Guan ,&nbsp;Lingchao Liao ,&nbsp;Yu Li ,&nbsp;Jiaxin Zhong ,&nbsp;Lei Shi","doi":"10.1016/j.corcom.2025.09.003","DOIUrl":"10.1016/j.corcom.2025.09.003","url":null,"abstract":"<div><div>In present work, conventional friction stir welding (FSW) and ultrasonic vibration enhanced friction stir welding (UVeFSW) were performed on a 6 mm-thick 2024 aluminum (Al) alloy plate. Corrosion behavior of the welded joints in nugget zone (NZ) was compared for these two different welding processes. Microstructures of base material and joints in NZ were characterized via SEM-EBSD, and size and distribution of second phases were statistically analyzed by ImageJ software. Results demonstrate that resistance of both pitting and intergranular corrosion increased due to ultrasonic effects. Microstructural characteristics reveals that ultrasonic field contributes to a smaller size and more uniform distribution of second phases. This modification can lead to improved pitting corrosion resistance. Meanwhile, a higher fraction of low-ΣCSL grain boundaries in NZ after UVeFSW was confirmed, which have higher resistance to intergranular corrosion and higher repassivation ability. This work provides insights into improving corrosion behavior by introducing ultrasonic vibration during FSW process, which could be beneficial for enhancing durability and performance of Al alloy structures in corrosive environments.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"22 ","pages":"Pages 136-144"},"PeriodicalIF":9.5,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148230722","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}

{"title":"Corrosion behavior and mechanism of UNS N10003 alloy in NaCl-KCl-CaCl2 molten salt and vapor at 800 °C","authors":"Huiqin Yin,&nbsp;Yang Wang,&nbsp;Linbing Jiang,&nbsp;Xing Lai,&nbsp;Wenguan Liu,&nbsp;Zhongfeng Tang","doi":"10.1016/j.corcom.2025.01.005","DOIUrl":"10.1016/j.corcom.2025.01.005","url":null,"abstract":"<div><div>Corrosion of UNS N10003 alloy in NaCl-KCl-CaCl₂ molten salt and vapor was investigated at 800 °C for 500 h. Corrosion depth of UNS N10003 alloy in NaCl-KCl-CaCl₂ salt and vapor reaches up to 104.3 and 35.0 μm, respectively. UNS N10003 alloy suffered severe intergranular and pitting corrosion. Cr, Fe, Ni and Mo were obviously depleted. Chromium oxides were formed inside the intergranular and alloy surface after corrosion. Existing states of O in alloy were further explored through theoretical calculations, indicating that O preferentially reacts with Cr to form chromium oxides in grain boundaries.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"22 ","pages":"Pages 188-197"},"PeriodicalIF":10.7,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148565439","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}

{"title":"Pitting behavior of Mg modified 49MnVS3 Non-quenched and Tempered steel in alkaline NaCl solution","authors":"Wenbo Wu ,&nbsp;Motuan Li ,&nbsp;Donghua Suo ,&nbsp;Yiming Jiang ,&nbsp;Jin Li ,&nbsp;Jianxun Fu ,&nbsp;Yangting Sun","doi":"10.1016/j.corcom.2024.08.004","DOIUrl":"10.1016/j.corcom.2024.08.004","url":null,"abstract":"<div><div>This study delves into the pitting behavior of Mg modified 49MnVS3 Non-quenched and Tempered steel (NQTS) in an alkaline NaCl solution. Mg modification induces the formation of more complex inclusions characterized by a core-shell structure. With the increase of Mg content, the potential difference between (Mn, Mg)S and the matrix concurrently rises. The intensified galvanic effect leads to the preferential dissolution of the matrix in an alkaline NaCl environment, which finally induces the decrease of pitting potential.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"21 ","pages":"Pages 45-59"},"PeriodicalIF":9.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076766","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}

{"title":"Novel lean Mg-Ag anodes designed through surface voltage potential difference for high-performance Mg-air battery","authors":"Wei-li Cheng ,&nbsp;Xu-bang Hao ,&nbsp;Fei-er Shangguan ,&nbsp;Jian Li ,&nbsp;Jin-hui Wang ,&nbsp;Hui Yu ,&nbsp;Li-fei Wang ,&nbsp;Ze-qin Cui ,&nbsp;Sung Hyuk Park ,&nbsp;Cheng Chang","doi":"10.1016/j.corcom.2024.10.004","DOIUrl":"10.1016/j.corcom.2024.10.004","url":null,"abstract":"<div><div>The primary limitations hindering the broad adoption of primary magnesium (Mg)-air battery are their low cell voltage and energy conversion rates. To overcome these challenges, we develop hetero-structured magnesium-silver (Mg-Ag) anodes with varying silver content. Our findings show that Mg-2Ag and Mg-0.25Ag anodes demonstrate a characteristic bimodal grain structure. Additionally, the distribution of local strain is heavily influenced by the arrangement of grain boundaries, leading to varying surface voltage potential differences. The uniform and extensive local strain distribution in Mg-0.25Ag anode facilitates discharge activity and suppresses occurrence of the chunk effects. Moreover, compact discharge film with a higher fraction of Ag₂O restrains wastage of Mg-0.25Ag anode. A Mg-air battery model utilizing this anode exhibits a remarkable synergy between cell voltage (1.449 V) and energy density (1631.194 mW h g⁻¹) at a current density of 5 mA cm⁻². Such an anode design approach promotes the efficiency of Mg-air battery, offering renewable and cost-effective energy solutions for electronics and vehicles.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"21 ","pages":"Pages 160-170"},"PeriodicalIF":9.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147394735","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}

{"title":"Insights into atmospheric corrosion evolution of weathering steels with different nickel contents during simulated coastal atmospheric wet-dry cycling","authors":"Chaojiang Ma ,&nbsp;Chao Li ,&nbsp;Xin Mu ,&nbsp;Rongyao Ma ,&nbsp;Lei Chen ,&nbsp;Junhua Dong ,&nbsp;Yange Yang ,&nbsp;Ye Wan ,&nbsp;Changgang Wang","doi":"10.1016/j.corcom.2025.02.003","DOIUrl":"10.1016/j.corcom.2025.02.003","url":null,"abstract":"<div><div>This study investigates corrosion evolution of ordinary weathering steel (Q420NH) and super weathering steels with varying nickel contents (1 wt.% and 3 wt.%, named as 1Ni and 3Ni) under simulated coastal atmospheric wet-dry cycling conditions. Characterization of rust layers subjected to different corrosion cycles was conducted using indoor cyclic corrosion tests (CCT), X-ray diffraction (XRD), scanning electron microscopy (SEM), and Raman spectroscopy, thereby elucidating the transformation processes of corrosion products on the surfaces of Q420NH, 1Ni, and 3Ni steels. The results demonstrate that a higher nickel content significantly mitigates atmospheric corrosion in weathering steels and notably influences the compositional evolution of the internal rust layer. In the initial corrosion stages, the primary components of the internal rust layer for Q420NH and 1Ni steels are <em>α</em>-FeOOH, <em>β</em>-FeOOH, Fe₃O₄, and <em>γ</em>-Fe₂O₃, while the internal rust layer for 3Ni steel predominantly consists of <em>α</em>-FeOOH, Fe₃O₄, <em>γ</em>-Fe₂O₃, and ferrihydrite, with sporadic occurrences of <em>β</em>-FeOOH. In the later stages of corrosion, the relative contents of <em>β</em>-FeOOH and Fe₃O₄ decrease in the internal rust layers of Q420NH and 1Ni steels, whereas the internal rust layer of 3Ni steel is primarily composed of <em>α</em>-FeOOH and ferrihydrites. Throughout the corrosion process, external rust layers of all three weathering steels consistently exhibit <em>γ</em>-FeOOH as main component. The presence of a high proportion of <em>α</em>-FeOOH contributes to enhanced density and stability of the rust layer of 3Ni steel, resulting in a significantly lower corrosion rate compared with both Q420NH and 1Ni steels.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"21 ","pages":"Pages 171-183"},"PeriodicalIF":9.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147394805","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}

{"title":"Hydrogen evolution and electrochemical behavior of Al in Al-air batteries with concentrated NaOH electrolytes","authors":"Zihan Wang ,&nbsp;Zhong Wu ,&nbsp;Yingjie Liu ,&nbsp;Jinfeng Zhang ,&nbsp;Yao Yang ,&nbsp;Jing Xu ,&nbsp;Tong Zhao ,&nbsp;Yang Zhu ,&nbsp;Zhenbo Qin ,&nbsp;Wenbin Hu","doi":"10.1016/j.corcom.2024.10.002","DOIUrl":"10.1016/j.corcom.2024.10.002","url":null,"abstract":"<div><div>Alkaline Aluminum-air (Al-air) batteries are gaining increasing interest due to their high theoretical energy density and intrinsic safety, which are promising for energy storage applications. Hydrogen evolution and discharge behavior of Al electrodes are examined in concentrated NaOH solutions (&gt; 4 mol L^-1) through a series of full-cell discharge and electrochemical tests. The relationship between hydrogen evolution and discharge behavior of Al electrodes is clarified. Results indicate that in alkaline Al-air batteries, Al electrode generates a small quantity of hydrogen with a discharge current increasing (up to 40 mA cm^-2). Highly concentrated NaOH solution is optimal for high-current discharge scenarios. As the concentration of NaOH increases, the accumulation of reaction products on the surface of Al electrode occurs, resulting in alteration of discharge behavior and hydrogen evolution.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"21 ","pages":"Pages 126-135"},"PeriodicalIF":9.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147395092","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}

{"title":"In situ synthesis of MIL-100(Fe) nanocages loaded with 8-hydroxyquinoline for sustainable corrosion protection","authors":"Zhe Zhang ,&nbsp;Chenkai Xu ,&nbsp;Yujie Yuan,&nbsp;Hao Wang,&nbsp;Dongmei Zeng,&nbsp;Minmin Zou,&nbsp;Ting Zhang,&nbsp;You Zhang","doi":"10.1016/j.corcom.2024.12.002","DOIUrl":"10.1016/j.corcom.2024.12.002","url":null,"abstract":"<div><div>High-yield Fe-based metal-organic framework (MIL-100(Fe)) nanocages loaded with corrosion inhibitor 8-hydroxyquinoline (8-HQ) were successfully synthesized through a simple one-step method in a hydrofluoric acid-free aqueous solution at room temperature. Sol-gel coatings doped with nanocages were applied to aluminum alloy 2024 substrate for enhanced corrosion resistance. The optimal 8-HQ addition was found, and the corresponding coating maintained approximately one order of magnitude higher |<em>Z</em>|_0.01 _Hz than the pure sol-gel coating after 14 d of immersion. This work proposes an eco-friendly and effective approach to safeguarding aluminum alloys against corrosion, offering smart and multifunctional applications.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"21 ","pages":"Pages 184-194"},"PeriodicalIF":9.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147330356","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}

{"title":"Intergranular corrosion of stainless steel 316L in molten LiCl-NaCl-KCl salt at 700 °C","authors":"Zhoufeng Xu ,&nbsp;Renzhi Luo ,&nbsp;Tao Liu ,&nbsp;Chongdou Yang ,&nbsp;Tianyu Zhao ,&nbsp;Jie Qiu","doi":"10.1016/j.corcom.2024.08.005","DOIUrl":"10.1016/j.corcom.2024.08.005","url":null,"abstract":"<div><div>Molten chloride salt is an ideal heat transfer and storage medium for solar power generation systems. However, the strong corrosion of high-temperature molten salts on metal materials is the main problem limiting its applications in solar thermal power systems. In this work, corrosion behavior of stainless steel 316L in molten chloride salt at 700 °C was examined and characterized. Results show that the stability of surface oxide of stainless steel 316L was dramatically jeopardized in high-temperature chloride molten salt. When the oxide film was dissolved, stainless steel 316L corrodes primarily through the selective dissolution of Cr with intergranular corrosion features. Moreover, O impurity in the chloride molten salt enter the alloy matrix through grain boundary and form intergranular oxide of (Fe,Cr,Ni)₃O₄ spinel, accelerating the intergranular corrosion crack in molten chloride salts.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"21 ","pages":"Pages 37-44"},"PeriodicalIF":9.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146022227","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}

{"title":"Passive film evolution on Ni-Cr-Mo alloys in acidic chloride solution during anodic polarization","authors":"Josefin Eidhagen ,&nbsp;Mats Hättestrand ,&nbsp;Ulf Kivisäkk ,&nbsp;Jan Andersson ,&nbsp;Lisa Lautrup ,&nbsp;YUE Xiaoqi ,&nbsp;Alfred Larsson ,&nbsp;Andrea Grespi ,&nbsp;Mattia Scardamaglia ,&nbsp;Andrey Shavorskiy ,&nbsp;Edvin Lundgren ,&nbsp;PAN Jinshan","doi":"10.1016/j.corcom.2025.12.001","DOIUrl":"10.1016/j.corcom.2025.12.001","url":null,"abstract":"<div><div>Passivity arises from spontaneous formation of a thin protective passive film (oxide/hydroxide layer) on the metal surface, and the stability of passive film is of great importance for corrosion resistance. This study investigates the formation, stability, and transpassive dissolution of passive films on two Ni-based alloys, Alloy 625 and Alloy 59, in acidified NaCl solution, by combining in situ electrochemical synchrotron ambient pressure X-ray photoelectron spectroscopy (AP-XPS) with <em>ex situ</em> glow discharge optical emission spectroscopy (GD-OES) and electrochemical testing, as well as TEM and chemical analyses of the electrolyte. The use of these techniques enables a detailed analysis of chemical states of alloying elements and their distribution within passive films. AP-XPS results reveal a Cr-rich oxide in the thin passive film, which also contains Mo- and Nb-oxides enriched in the near-surface region, and a Cr-hydroxide layer on top of the surface. At increased polarization potentials, low valence Mo- and Nb-components are further oxidized to higher valence components. GD-OES results show that, in the transpassive potential region, the oxide film can grow to several tens of nm thick, while the two Ni-base alloys exhibit quite different behavior. For Alloy 625, Cr is depleted, Ni is almost not present, while Mo and Nb are dominant in the thick transpassive oxide film. In contrast, for Alloy 59 (Nb-free alloy), Cr and Mo remain enriched in the near-surface region and near the base metal, and Ni is present but below 10% in the thick transpassive oxide film. Nb in Alloy 625 forms a stable oxide and inhibits transpassive dissolution, thus contributing to corrosion resistance. By elucidating the fundamental mechanisms governing passivity breakdown, this study provides critical insights for the development of advanced Ni-based materials with enhanced corrosion resistance in aggressive environments.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"21 ","pages":"Pages 14-25"},"PeriodicalIF":9.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145924302","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}

{"title":"Radical-reaction driving nonlinear corrosion behavior and inhibition mechanism of Ce3+/Ce4+ redox couple on molten slag/refractory interface","authors":"Fanbo Zeng,&nbsp;Xinlian Wang,&nbsp;Shenghao Li,&nbsp;Ao Huang,&nbsp;Shiqiang Wang,&nbsp;Yongshun Zou,&nbsp;Lvping Fu,&nbsp;Huazhi Gu","doi":"10.1016/j.corcom.2024.07.008","DOIUrl":"10.1016/j.corcom.2024.07.008","url":null,"abstract":"<div><div>A novel nonlinear corrosion at the three-phase interface of corundum refractory with CaO-Al₂O₃-SiO₂ slag was identified as a Turing pattern phenomenon caused by auto-catalytic reactions involving free radicals Ca^·+ and O₂^·-. The differences in diffusion rate between Ca^·+ and O₂^·- result in an unstable distribution of products at each reaction site, leading to nonlinear dynamic reactions with a periodic corrosion pattern. Efficiency of the interfacial auto-catalytic reaction was inhibited by the radical quenching effect of the Ce³⁺/Ce⁴⁺ redox couple modified on the surface of corundum refractory, resulting in complete suppression of the Turing pattern formation.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"21 ","pages":"Pages 26-36"},"PeriodicalIF":9.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145924303","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}