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A bimodified MgAlCe-LDHs@GO self-healing anti-corrosion coating based on the micro arc oxidation coating of AZ31 magnesium alloy
IF 7.4 1区 材料科学
Corrosion Science Pub Date : 2025-02-19 DOI: 10.1016/j.corsci.2025.112805
Zuojun Jiao , Yan Zhou , Xiaowei Dai , Jiahao Wu , Yonghua Chen , Mingyi Wu , Wenhui Yao , Yuan Yuan , Zhihui Xie , Yanlong Ma , Atrens Andrej , Liang Wu
{"title":"A bimodified MgAlCe-LDHs@GO self-healing anti-corrosion coating based on the micro arc oxidation coating of AZ31 magnesium alloy","authors":"Zuojun Jiao ,&nbsp;Yan Zhou ,&nbsp;Xiaowei Dai ,&nbsp;Jiahao Wu ,&nbsp;Yonghua Chen ,&nbsp;Mingyi Wu ,&nbsp;Wenhui Yao ,&nbsp;Yuan Yuan ,&nbsp;Zhihui Xie ,&nbsp;Yanlong Ma ,&nbsp;Atrens Andrej ,&nbsp;Liang Wu","doi":"10.1016/j.corsci.2025.112805","DOIUrl":"10.1016/j.corsci.2025.112805","url":null,"abstract":"<div><div>To obtain magnesium (Mg) alloys with long-term corrosion resistance, coatings with enhanced stability and self-healing effect are necessary. This study in-situ produced a layered double hydroxides (LDHs) coating using hydrothermal method to process the cerium salt treated micro arc oxidation (MAO) coating in sodium dodecylbenzene sulfonate (SDBS)-modified graphene oxide (GO) solution (MgAlCe-LDHs@GO-SDBS), and further introduced 3,5-dinitrosalicylic (D) acid and quinolizic acid (Q) via anion-exchange method. The multiple effects of Ce, GO-SDBS, and corrosion inhibitors significantly enhanced the coatings’ anti-corrosive and self-healing performance. The MgAlCe-LDHs@GO-S&amp;D coating possessed significantly decreased corrosion current density of 3.6 × 10<sup>−9</sup> A·cm<sup>−2</sup>.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"248 ","pages":"Article 112805"},"PeriodicalIF":7.4,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Topographical and statistical studies of the corrosion damage underneath a sulfide film formed on a Cu surface
IF 7.4 1区 材料科学
Corrosion Science Pub Date : 2025-02-18 DOI: 10.1016/j.corsci.2025.112801
J. Chen , X. Pan , H.Y. Nie , B. Kobe , E. Bergendal , C. Lilja , M. Behazin , D.W. Shoesmith , J.J. Noël
{"title":"Topographical and statistical studies of the corrosion damage underneath a sulfide film formed on a Cu surface","authors":"J. Chen ,&nbsp;X. Pan ,&nbsp;H.Y. Nie ,&nbsp;B. Kobe ,&nbsp;E. Bergendal ,&nbsp;C. Lilja ,&nbsp;M. Behazin ,&nbsp;D.W. Shoesmith ,&nbsp;J.J. Noël","doi":"10.1016/j.corsci.2025.112801","DOIUrl":"10.1016/j.corsci.2025.112801","url":null,"abstract":"<div><div>Damage to Cu corroded in sulfide-containing solutions was investigated using scanning electron microscopy and surface profilometry. For dilute sulfide solutions (≤ 5 × 10<sup>−5</sup> M), a thin, porous film was formed, and general corrosion to a depth of &lt; 1 μm observed. At a higher concentration (5 × 10<sup>−4</sup> M), a compact film was formed and micro-galvanic corrosion observed. With increasing exposure time at higher concentration, the extent of micro-galvanic corrosion decreased in favor of general corrosion, as the aspect ratio of the locally corroded sites increased. This indicates that micro-galvanic corrosion will eventually be stifled and only rough general corrosion observed.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"248 ","pages":"Article 112801"},"PeriodicalIF":7.4,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143464015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of ageing temperature on the microstructure and localised corrosion of 15–5PH stainless steel
IF 7.4 1区 材料科学
Corrosion Science Pub Date : 2025-02-18 DOI: 10.1016/j.corsci.2025.112800
Alyshia Keogh , Emily Aradi , Mark Taylor , Anthony Cook , Ed Pickering , Zacharie Obadia , Philip Prangnell , Fabio Scenini
{"title":"Effect of ageing temperature on the microstructure and localised corrosion of 15–5PH stainless steel","authors":"Alyshia Keogh ,&nbsp;Emily Aradi ,&nbsp;Mark Taylor ,&nbsp;Anthony Cook ,&nbsp;Ed Pickering ,&nbsp;Zacharie Obadia ,&nbsp;Philip Prangnell ,&nbsp;Fabio Scenini","doi":"10.1016/j.corsci.2025.112800","DOIUrl":"10.1016/j.corsci.2025.112800","url":null,"abstract":"<div><div>The effect of microstructure on the localised corrosion resistance of 15–5PH stainless steel was investigated as a function of ageing temperature (450°C, 540°C and 650°C). Microstructural characterisation revealed an increase in reverted austenite content for samples aged at 650°C. Cu precipitates increased in size with ageing temperature. Cr carbides were observed in samples aged at 540°C, and in samples aged at 650°C with a greater size and number density. Potentiodynamic Polarisation (PDP) and Double-Loop Electrochemical Potentiokinetic Reactivation (DL-EPR) were used to determine the Pitting Potential (E<sub>pit</sub>) and the Degree Of Reactivation (DOR) at each ageing temperature, respectively. The scatter in the measured E<sub>pit</sub> values was too large to confidently rank pitting susceptibility as a function of ageing temperature. However, it was found that the DOR increased with ageing temperature; this increase correlated with an increase in density of Cr carbides in the microstructure at an ageing temperatures of 540°C and the formation of reverted austenite at 650 °C. These heat treatment induced changes resulted in the distribution of Cr in the microstructure becoming less homogeneous as the ageing temperature increased, leading to a likely increase in the number of susceptible sites for localised corrosion by disruption of the integrity of the passive film.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"248 ","pages":"Article 112800"},"PeriodicalIF":7.4,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143464010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mechanism of zinc phosphate conversion coating formation on iron-based substrates
IF 7.4 1区 材料科学
Corrosion Science Pub Date : 2025-02-18 DOI: 10.1016/j.corsci.2025.112796
Mohammad Alinezhadfar , Patrik Schmutz , Fabio E. Furcas , Joakim Reuteler , Rowena Crockett , Ueli Angst
{"title":"Mechanism of zinc phosphate conversion coating formation on iron-based substrates","authors":"Mohammad Alinezhadfar ,&nbsp;Patrik Schmutz ,&nbsp;Fabio E. Furcas ,&nbsp;Joakim Reuteler ,&nbsp;Rowena Crockett ,&nbsp;Ueli Angst","doi":"10.1016/j.corsci.2025.112796","DOIUrl":"10.1016/j.corsci.2025.112796","url":null,"abstract":"<div><div>This study investigates the formation mechanism of zinc phosphate conversion coatings on pearlitic steel and ferritic iron with emphasis on the impact of microstructure and substrate corrosion. Deposition parameters, including pH (2 and 2.5) and temperature (50°C and 70°C), were explored. Open circuit potential (OCP) monitoring was used to identify different stages of coating formation. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) showed that higher temperatures accelerated the growth of phosphate crystals, composed of hopeite (Zn<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub>) and phosphophyllite (Zn<sub>2</sub>Fe(PO<sub>4</sub>)<sub>2</sub>) on both substrates. Deposition at pH 2.5 led to bulk-solution precipitation on substrates, while at pH 2, coatings were growing from the substrate surface. Electrochemical impedance (EIS) and inductively coupled plasma mass spectrometry (ICP-MS) measurements revealed that iron corroded around 2.5 times slower than steel. As identified by energy dispersive X-ray spectroscopy (EDS) in SEM, iron phosphate particles were formed on both substrates. These particles accumulated in higher amounts on steel, while iron exhibited minimal corrosion product accumulation. Different phosphating stages were then studied using SEM and time-of-flight – secondary ion mass spectrometry (ToF-SIMS). ToF-SIMS depth profiles highlighted a thicker iron phosphate layer on steel at early phosphating stages, compared to iron. Focused ion beam (FIB) cross-sections of fully phosphated steel showed a porous interlayer, mainly composed of iron-phosphate, at the coating/steel interface. Zinc phosphate crystals were nucleated on this porous layer or formed by near-surface solution precipitation. Iron substrates did not show this porous interlayer, and had lower phosphatability with only near-surface solution precipitation of zinc phosphate crystals.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"248 ","pages":"Article 112796"},"PeriodicalIF":7.4,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143464013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dynamic response to fluctuating input of Nb:Ti:N film modified Ti bipolar plates for proton exchange membrane water electrolyser
IF 7.4 1区 材料科学
Corrosion Science Pub Date : 2025-02-18 DOI: 10.1016/j.corsci.2025.112803
Xiejing Luo , Luqi Chang , Chenhao Ren , Yingyu Ding , Jiuhong Zhang , Dawei Zhang , Jizheng Yao , Zhanfeng Deng , Chaofang Dong
{"title":"Dynamic response to fluctuating input of Nb:Ti:N film modified Ti bipolar plates for proton exchange membrane water electrolyser","authors":"Xiejing Luo ,&nbsp;Luqi Chang ,&nbsp;Chenhao Ren ,&nbsp;Yingyu Ding ,&nbsp;Jiuhong Zhang ,&nbsp;Dawei Zhang ,&nbsp;Jizheng Yao ,&nbsp;Zhanfeng Deng ,&nbsp;Chaofang Dong","doi":"10.1016/j.corsci.2025.112803","DOIUrl":"10.1016/j.corsci.2025.112803","url":null,"abstract":"<div><div>The potential application of renewable energy sources such as wind power and photovoltaics in hydrogen production from water electrolysis has driven the development of bipolar plates. Combined with theoretical conductivity calculations and electrode potential-pH diagram constructions, a novel Nb:Ti:N film for bipolar plates is innovatively designed with excellent electrical conductivity and corrosion resistance, as well as high thermal and chemical stability. The Nb and N elements improve the electronic delocalisation effect and transport capacity of Ti and TiO<sub>2</sub>, and the interfacial contact resistance of the Nb:Ti:N film modified Ti bipolar plates has been decreased to 3.27 mΩ cm<sup>2</sup> at 1.4 MPa, with an enhancement of electrical conductivity by about 86 %. At 0 &lt; pH &lt; 7, both Ti metal and Nb metal present good stability and the passivation zone is mainly in the form of TiO<sub>2</sub> and Nb<sub>2</sub>O<sub>5</sub>. At 1.8 V (vs. Ag/AgCl), the corrosion resistance of Nb metal is better and the Nb oxide formed by passivation of Nb metal prevents the dissolution of Ti substrate into TiO<sup>2+</sup> and (TiO<sub>2</sub>)<sup>2+</sup> ions. Moreover, periodic triangle and square wave polarization potentials have been applied to simulate wind and photovoltaic power input. By evaluating the durability and dynamic response characteristics of the bipolar plates under fluctuating voltage input conditions, it can be concluded that the high potential promotes the passivation behavior of Nb metal in Nb:Ti:N films, which results in a fast response to current fluctuations caused by fluctuating potentials.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"249 ","pages":"Article 112803"},"PeriodicalIF":7.4,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143509162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dynamic oxide film evolution and corrosion mechanisms of 308L stainless steel in simulated SMR environments
IF 7.4 1区 材料科学
Corrosion Science Pub Date : 2025-02-18 DOI: 10.1016/j.corsci.2025.112804
Pengfei Gao , Yanhui Li , Wang Zhu , Jie Qiu , Zhouyang Bai , Qibo Wang , Shaoming Ding
{"title":"Dynamic oxide film evolution and corrosion mechanisms of 308L stainless steel in simulated SMR environments","authors":"Pengfei Gao ,&nbsp;Yanhui Li ,&nbsp;Wang Zhu ,&nbsp;Jie Qiu ,&nbsp;Zhouyang Bai ,&nbsp;Qibo Wang ,&nbsp;Shaoming Ding","doi":"10.1016/j.corsci.2025.112804","DOIUrl":"10.1016/j.corsci.2025.112804","url":null,"abstract":"<div><div>This study investigates the corrosion behavior of 308L stainless steel in simulated small modular reactor boron-free and boron containing environments after exposure of long period. It reveals the twin crystal structures of the porous Fe₃O₄-dominated outer layer and the dynamic transformation of the oxide film components, from Cr₂O₃ in the early stages to FeCr₂O₄ with extended exposure. The mechanism of boron incorporation into the film and its role in enhancing corrosion resistance were also analyzed. These findings elucidate oxide film mechanisms, offering innovative insights for optimizing material design and extending SMR component lifespan under varying water chemistries.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"248 ","pages":"Article 112804"},"PeriodicalIF":7.4,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143464016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
CMAS corrosion resistance and mechanism of directionally solidified Al2O3/YAG eutectic ceramics at high temperatures of 1300–1500 ℃
IF 7.4 1区 材料科学
Corrosion Science Pub Date : 2025-02-17 DOI: 10.1016/j.corsci.2025.112793
Xue Tan, Haijun Su, Yuan Liu, Jiatong Yao, Hongliang Gao, Hao Jiang, Minghui Yu, Xiang Li, Peixin Yang, Zhuo Zhang, Min Guo
{"title":"CMAS corrosion resistance and mechanism of directionally solidified Al2O3/YAG eutectic ceramics at high temperatures of 1300–1500 ℃","authors":"Xue Tan,&nbsp;Haijun Su,&nbsp;Yuan Liu,&nbsp;Jiatong Yao,&nbsp;Hongliang Gao,&nbsp;Hao Jiang,&nbsp;Minghui Yu,&nbsp;Xiang Li,&nbsp;Peixin Yang,&nbsp;Zhuo Zhang,&nbsp;Min Guo","doi":"10.1016/j.corsci.2025.112793","DOIUrl":"10.1016/j.corsci.2025.112793","url":null,"abstract":"<div><div>The calcium-magnesium-alumina-silicate (CMAS) corrosion resistance of directionally solidified Al<sub>2</sub>O<sub>3</sub>/Y<sub>3</sub>Al<sub>5</sub>O<sub>12</sub> (YAG) eutectic ceramics prepared by the Czochralski technique was investigated at 1300–1500 °C. No corrosion traces were observed after 100 h of corrosion at 1300 °C. Under 1400 °C and 1500 °C after 50 h, the corrosion depth was increased to 306 and 316 μm, but the corrosion rate did not significantly improve. The corrosion resistance was attributed to the inhibition of CMAS penetration by the stable phase interface, the modulation of CMAS corrosion activity by the diffusion of elements, and forming a continuous and dense garnet layer.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"248 ","pages":"Article 112793"},"PeriodicalIF":7.4,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143464009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluating the importance of flavin-based electron shuttling in corrosion
IF 7.4 1区 材料科学
Corrosion Science Pub Date : 2025-02-14 DOI: 10.1016/j.corsci.2025.112782
Peiyu Ma , Di Wang , Dake Xu , Derek R. Lovley
{"title":"Evaluating the importance of flavin-based electron shuttling in corrosion","authors":"Peiyu Ma ,&nbsp;Di Wang ,&nbsp;Dake Xu ,&nbsp;Derek R. Lovley","doi":"10.1016/j.corsci.2025.112782","DOIUrl":"10.1016/j.corsci.2025.112782","url":null,"abstract":"<div><div>Faster microbial corrosion of ferrous metals with flavin amendments has led to the common perception that flavins function as an electron shuttle for extracellular metal-to-microbe electron transfer. Direct examination of this possibility revealed that electron transfer from Fe<sup>0</sup> or X80 carbon steel to flavins or the humic acid analogue anthraquinone-2,6-disulfonate (AQDS) was orders of magnitude slower than proton reduction to H<sub>2</sub>. Stainless steel did not reduce shuttles. Electron shuttles could not serve as the electron donor for sulfate reduction. Riboflavin enhanced <em>Desulfovibrio vulgaris</em> growth on H<sub>2</sub>, suggesting that the primary impact of added flavins is acting as a nutrient.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"247 ","pages":"Article 112782"},"PeriodicalIF":7.4,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143428727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synergistic influence of L12 precipitates on the mechanical properties and corrosion resistance of CoCrFeNi2-based high entropy alloys
IF 7.4 1区 材料科学
Corrosion Science Pub Date : 2025-02-14 DOI: 10.1016/j.corsci.2025.112781
K.W. Kang, A.X. Li, B.R. Zhang, J.S. Zhang, M.K. Xu, D. Huang, S.K. Liu, Y.T. Jiang, G. Li
{"title":"Synergistic influence of L12 precipitates on the mechanical properties and corrosion resistance of CoCrFeNi2-based high entropy alloys","authors":"K.W. Kang,&nbsp;A.X. Li,&nbsp;B.R. Zhang,&nbsp;J.S. Zhang,&nbsp;M.K. Xu,&nbsp;D. Huang,&nbsp;S.K. Liu,&nbsp;Y.T. Jiang,&nbsp;G. Li","doi":"10.1016/j.corsci.2025.112781","DOIUrl":"10.1016/j.corsci.2025.112781","url":null,"abstract":"<div><div>This study fabricated a series of CoCrFeNi<sub>2</sub>-based high entropy alloys with L1<sub>2</sub> precipitates, achieving synergistic improvements in mechanical properties and corrosion resistance. The increase in strength is primarily attributed to precipitation strengthening. Corrosion resistance is improved by the L1<sub>2</sub> precipitates, which enrich the FCC phase with chromium, thereby enhancing the concentration of Cr<sub>2</sub>O<sub>3</sub> in the passive film. Furthermore, first-principles calculations reveal that the improved corrosion resistance is due to the high work function and the lower surface adsorption energy of L1<sub>2</sub> precipitates.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"247 ","pages":"Article 112781"},"PeriodicalIF":7.4,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143419881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of homogenized annealing on the intergranular corrosion behavior of super ferritic stainless steel S44660
IF 7.4 1区 材料科学
Corrosion Science Pub Date : 2025-02-14 DOI: 10.1016/j.corsci.2025.112783
Bin Wang , Yugui Li , Huaying Li , Guanghui Zhao , Yaohui Song , Hui Xu
{"title":"Influence of homogenized annealing on the intergranular corrosion behavior of super ferritic stainless steel S44660","authors":"Bin Wang ,&nbsp;Yugui Li ,&nbsp;Huaying Li ,&nbsp;Guanghui Zhao ,&nbsp;Yaohui Song ,&nbsp;Hui Xu","doi":"10.1016/j.corsci.2025.112783","DOIUrl":"10.1016/j.corsci.2025.112783","url":null,"abstract":"<div><div>This study investigated the impact of homogenization annealing temperature and time on the intergranular corrosion (IGC) behavior of super ferritic stainless steel (SFSS) S44660. The results revealed the high susceptibility of IGC in S44660 was due to an intergranular chromium-depleted zone resulting from the precipitation of M<sub>23</sub>C<sub>6</sub> along grain boundaries. Furthermore, IGC resistance was restored after treatment under three homogenized annealing conditions: 750 °C for 5 min, 780 °C for 2 min, and 800 °C for 30 s. This restoration was attributed to intragranular chromium atoms diffusing into the chromium-depleted zone during homogenization annealing, compensating for chromium loss from carbide precipitation. It has been confirmed that the self-healing of IGC in S44660 occurs through the process of controlling chromium diffusion by homogenizing annealing.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"247 ","pages":"Article 112783"},"PeriodicalIF":7.4,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143428726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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