{"title":"Unveiling the corrosion mechanism of nickel-aluminum bronze coatings on steel fabricated by wire-arc directed energy deposition from selective phase corrosion to uniform corrosion evolution","authors":"Cheng Xu , Yong Peng , Liang-Yu Chen , Yong Huang , Tian-Yang Zhang , Jing-Jing Cheng , Ke-Hong Wang","doi":"10.1016/j.corsci.2025.113019","DOIUrl":"10.1016/j.corsci.2025.113019","url":null,"abstract":"<div><div>In this work, the microstructural evolution and corrosion behavior of nickel aluminum bronze (NAB) deposition layers deposited at different distances from the steel substrate using wire-arc directed energy deposition (WA-DED) were investigated. Due to the undercooling of the organization, as the distance from the substrate was increased, the grain characteristics of the α-Cu matrix transitioned from equiaxed grains to columnar grains. Because of the addition of Fe and Cr elements and repeated heating, the bottom region (BNAB) was shown to be more complex, comprising an α-Cu matrix, β′-Cu, and various κ phases. As the samples were gradually moved away from the substrate, the content of intermetallic compounds was decreased, showing a more uniform microstructure. The enrichment of Fe and Cr in the precipitates of BNAB increased the potential volta difference between the phases, leading to exacerbated selective phase corrosion. The higher metal element (Al and Ni) content and dislocation densities of the top deposition layer were found to promote passivation behavior and reduce the density of point defects in the Cu<sub>2</sub>O film of the top region (TNAB). The Al<sub>2</sub>O<sub>3</sub> film was formed on the nano-sized κ<sub>Ⅱ</sub>-phase rapidly, protecting the interdendritic region of TNAB. Therefore, the uniform distribution of Al<sub>2</sub>O<sub>3</sub> film and the lower potential difference between different phases result in uniform corrosion of TNAB.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"253 ","pages":"Article 113019"},"PeriodicalIF":7.4,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143922680","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}
Corrosion SciencePub Date : 2025-05-05DOI: 10.1016/j.corsci.2025.112976
Shiyao Du , Dongfang Jia , Xin Guo , Jinke Wang , Zhibin Chen , Lingwei Ma , Dawei Zhang
{"title":"Coupling effect of adipic acid and Cl- on anodic dissolution of SAC305 solder alloy for printed circuit boards","authors":"Shiyao Du , Dongfang Jia , Xin Guo , Jinke Wang , Zhibin Chen , Lingwei Ma , Dawei Zhang","doi":"10.1016/j.corsci.2025.112976","DOIUrl":"10.1016/j.corsci.2025.112976","url":null,"abstract":"<div><div>The coupling effect of adipic acid and Cl<sup>-</sup> on the corrosion of SAC305 solder alloy is systematically investigated. Electrochemical measurements prove that Cl<sup>-</sup> could completely destroy the protectiveness of adipic acid and accelerate metal corrosion. Morphology characterizations and XPS analyses verify that the amount of adsorbed adipic acid on the metal surface is largely reduced due to competitive adsorption of Cl<sup>-</sup>. TEM and Mott-Schottky tests further reveal that the defect density of the oxide film developed in Cl<sup>-</sup> environment is three times higher than that in adipic acid, which is responsible for the faster anodic dissolution.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"253 ","pages":"Article 112976"},"PeriodicalIF":7.4,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143922681","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}
Corrosion SciencePub Date : 2025-05-05DOI: 10.1016/j.corsci.2025.113015
Marc Peters , Victor Cruz de Faria , Lee Djumas , Michael Brameld , Erin G. Brodie , Sebastian Thomas , Christopher Hutchinson
{"title":"The development of Ni-Cr-W corrosion resistant alloys immune to sensitization","authors":"Marc Peters , Victor Cruz de Faria , Lee Djumas , Michael Brameld , Erin G. Brodie , Sebastian Thomas , Christopher Hutchinson","doi":"10.1016/j.corsci.2025.113015","DOIUrl":"10.1016/j.corsci.2025.113015","url":null,"abstract":"<div><div>The Ni-Cr-Mo system is the basis of important commercial corrosion resistant alloys (CRA’s) such as Inconel 625. These alloys perform very well so long as the Cr and Mo are available in solid solution. One of the limitations of Ni-Cr-Mo based CRA’s is that exposure at moderate temperatures (>500°C) can lead to precipitation of Cr and/or Mo containing compounds and this sensitization degrades the corrosion and mechanical performance. This research explores the development of a class of CRA’s based on the Ni-Cr-W system. This system has the advantage that compositions can be designed using computational thermodynamics that remain single phase from room temperature to melting, and hence could be immune from classic sensitization. We use atomic emission spectroelectrochemistry, coupled with x-ray photoelectron spectroscopy, to observe the extent to which W interacts with the Ni-Cr-W alloy surface during transpassive dissolution and repassivation in a 0.1 M solution of HCl (pH 1). This is compared with the behaviour of Mo and Nb in a commercial Inconel 625 alloy. The retention and dissolution behaviours of W, Mo and Nb are compared with results of ASTM G48 pitting and crevice testing to relate corrosion mechanisms with alloy performance. W is shown to enrich during transpassive dissolution and dissolve upon repassivation in a similar manner to Mo, suggesting their repassivation mechanisms are similar. The presence of Nb in Inconel 625 is also proposed to increase pitting resistance and reduce crevice propagation. It is shown that Ni-Cr-W alloys can be designed to be immune to sensitization with W playing a similar role in repassivation to Mo in Ni-Cr Mo alloys.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"253 ","pages":"Article 113015"},"PeriodicalIF":7.4,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143916124","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}
Corrosion SciencePub Date : 2025-05-05DOI: 10.1016/j.corsci.2025.113011
Beibei Xu, Xiping Guo, Yanqiang Qiao
{"title":"Influence of Cr content on microstructure and oxidation behavior of modified Mo-Si-B composite coatings","authors":"Beibei Xu, Xiping Guo, Yanqiang Qiao","doi":"10.1016/j.corsci.2025.113011","DOIUrl":"10.1016/j.corsci.2025.113011","url":null,"abstract":"<div><div>Cr-modified Mo-Si-B composite coatings were prepared on Nb-Si based alloy by slurry sintering. The effects of Cr contents (0, 5, 10 and 15 wt%) on the microstructure and oxidation behavior of Mo-Si-B coatings were revealed. The addition of high Cr content improved compactness, and the coating evolved from a bilayer to a trilayer. The 10Cr coating exhibited the best oxidation resistance for oxidation at 1380 ℃ for 100 h, which was mainly because the formed oxide scale embedded with CrNbO<sub>4</sub> and TiNbO<sub>4</sub> had lower stresses, lower oxygen permeability and better integrity, thus effectively inhibiting the inward diffusion of oxygen.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"253 ","pages":"Article 113011"},"PeriodicalIF":7.4,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143905926","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}
Corrosion SciencePub Date : 2025-05-05DOI: 10.1016/j.corsci.2025.113009
Weijie Guo , Tianbin Zhu , Yuhang Zhang , Yawei Li , Xiaofeng Xu , Yajie Dai , Yibiao Xu , Wen Yan
{"title":"Enhanced corrosion resistance of MgO–C refractories containing sintered MgAl2O4 spinel powder under various slag basicities","authors":"Weijie Guo , Tianbin Zhu , Yuhang Zhang , Yawei Li , Xiaofeng Xu , Yajie Dai , Yibiao Xu , Wen Yan","doi":"10.1016/j.corsci.2025.113009","DOIUrl":"10.1016/j.corsci.2025.113009","url":null,"abstract":"<div><div>Under the requirements of low-carbon metallurgy and high scrap ratio technology, enhancing the slag corrosion resistance of MgO–C refractories through cost-effective methods holds significant importance. Therefore, sintered spinel fine powder was used to partially replace the original fused magnesia fine powder in the refractory matrix, and the slag corrosion resistance against high-basicity and low-basicity slags was studied using the induction furnace corrosion test. The results showed that the addition of sintered spinel fine powder significantly enhanced the slag resistance of refractory matrix, especially against low-basicity slag. It also suppressed the propagation of the corroded area at the matrix, preventing complete destruction of the matrix and subsequent spalling of the aggregates caused by slag flow. Additionally, it inhibited the penetration of the slag into the refractory matrix and reduced the concentration of Fe<sup>3 +</sup> in the slag. When 12 wt% of sintered spinel fine powder was used, the specimens exhibited the best slag corrosion resistance against both slags with different basicities.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"253 ","pages":"Article 113009"},"PeriodicalIF":7.4,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143922679","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}
Corrosion SciencePub Date : 2025-05-04DOI: 10.1016/j.corsci.2025.113013
Peisong Song , Jiangbo Cheng , Xiuyu Wang , Zhibin Zhang , Liliang Shao , Lin Xue , Zhiyuan Jing , Baosen Zhang , Yuping Wu , Sheng Hong , Xiubing Liang
{"title":"Corrosion and corrosion-wear behavior of the (FeCoCrNi)75B15Si10 high-entropy amorphous alloy coatings prepared by plasma spraying","authors":"Peisong Song , Jiangbo Cheng , Xiuyu Wang , Zhibin Zhang , Liliang Shao , Lin Xue , Zhiyuan Jing , Baosen Zhang , Yuping Wu , Sheng Hong , Xiubing Liang","doi":"10.1016/j.corsci.2025.113013","DOIUrl":"10.1016/j.corsci.2025.113013","url":null,"abstract":"<div><div>High-entropy amorphous alloy (HEAA) coatings are regarded as novel surface protection materials for engineering equipment due to their excellent corrosion and wear resistance. (FeCoCrNi)<sub>75</sub>B<sub>15</sub>Si<sub>10</sub> (at%) HEAA coatings were prepared by plasma spraying under different heat input conditions. The HEAA coatings exhibit a fully amorphous structure. With moderate heat input, the HEAA coatings have optimal corrosion resistance with a passive film thickness of about 4.6 nm. The corrosion-wear results show that under continuous application of varying loads and potentials, the open-circuit potential of the coatings gradually decreases with increasing load, while corrosion current density continuously increases with rising potential. The prepared coatings exhibit superior corrosion and corrosion-wear resistance compared to the EQ 70 steel substrate, providing effective protection for the substrate material.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"253 ","pages":"Article 113013"},"PeriodicalIF":7.4,"publicationDate":"2025-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143905865","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}
Corrosion SciencePub Date : 2025-05-03DOI: 10.1016/j.corsci.2025.112997
Evgeny Barmatov , Jack Stoney , John Staniland , Trevor Hughes , Zhongyuan Qian , Setya Perwira Putra , Madhuri Gummadi , Andreas Hendrawinata , Anatoly Medvedev
{"title":"Corrosion of galvanized armor wires under simulated wellbore and atmospheric conditions","authors":"Evgeny Barmatov , Jack Stoney , John Staniland , Trevor Hughes , Zhongyuan Qian , Setya Perwira Putra , Madhuri Gummadi , Andreas Hendrawinata , Anatoly Medvedev","doi":"10.1016/j.corsci.2025.112997","DOIUrl":"10.1016/j.corsci.2025.112997","url":null,"abstract":"<div><div>We develop a laboratory-based methodology for evaluating the corrosion behaviour of galvanized steel armor wire under simulated oilfield operating conditions and for predicting the service life of wireline cables. The methodology involves testing the degradation of galvanized armor wire exposed to (a) aqueous drilling fluids and elevated temperatures that mimic the wellbore environment encountered during logging operations, and (b) accelerated atmospheric corrosion testing conditions that simulate cable storage in hot and humid environments. The methodology was verified using three types of galvanized wire used in the manufacture of logging cables. This knowledge enhances our understanding of corrosion mechanisms and evaluates the contributions of downhole and storage corrosion to cable degradation and mechanical integrity.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"253 ","pages":"Article 112997"},"PeriodicalIF":7.4,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143905925","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}
Corrosion SciencePub Date : 2025-05-02DOI: 10.1016/j.corsci.2025.113000
Qi Hu , Shujiang Geng , Xiying Niu , Jinlong Wang , Yuhan Huang , Fuhui Wang
{"title":"Effect of Y/Pt modification on high-temperature corrosion resistance of NiAl coatings in the environment of NaCl-humid air","authors":"Qi Hu , Shujiang Geng , Xiying Niu , Jinlong Wang , Yuhan Huang , Fuhui Wang","doi":"10.1016/j.corsci.2025.113000","DOIUrl":"10.1016/j.corsci.2025.113000","url":null,"abstract":"<div><div>Y- and Pt-modified NiAl coatings were fabricated on the surfaces of Mar-M247 alloys. The corrosion behavior of the modified and unmodified NiAl coatings in NaCl-humid air at 750 °C was comparatively studied. The results indicated that both Y and Pt were effective in improving the corrosion resistance of the NiAl coating by enhancing the compactness and adhesion of the α-Al<sub>2</sub>O<sub>3</sub> scale at the scale/coating interface as well as alleviating internal corrosion. In contrast, Pt modification was more remarkable. The mechanism for high-temperature corrosion resistance of Y- and Pt-modified NiAl coatings in the environment of NaCl-humid air was discussed.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"253 ","pages":"Article 113000"},"PeriodicalIF":7.4,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143899577","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}
Corrosion SciencePub Date : 2025-05-02DOI: 10.1016/j.corsci.2025.112999
K. Vijayvargia , T. Nguyen , M. Dadfarnia , A. Staykov , P. Sofronis , M. Kubota , M.L. Martin , J.A. Pugh
{"title":"On the chemomechanics of bubble growth in hydrogen attack of plain carbon steels","authors":"K. Vijayvargia , T. Nguyen , M. Dadfarnia , A. Staykov , P. Sofronis , M. Kubota , M.L. Martin , J.A. Pugh","doi":"10.1016/j.corsci.2025.112999","DOIUrl":"10.1016/j.corsci.2025.112999","url":null,"abstract":"<div><div>High temperature hydrogen attack (HTHA) is a form of degradation of carbon steels exposed to high temperature and high-pressure hydrogen whereby internal hydrogen reacting with carbides forms methane gas bubbles with an associated loss in strength and toughness due to decarburization. Grain boundary gas bubbles can grow and coalesce leading to microcrack formation and frequently to premature fracture. Current models mainly rely on the Grabke and Martin transient methane generation kinetics which is based on carburization/decarburization experiments on iron surface at temperatures between 600 °C and 800 °C, though those temperatures are much higher than those at which HTHA is observed in industrial processes. This work presents a coupled chemical kinetics and micromechanics model that addresses methane and hydrogen gas formation along with simultaneous decarburization and bubble growth over a wide temperature range. The energetics of the chemical reactions taking place at the ferrite-matrix/bubble interface are established through DFT calculations. Model calculations unveil the relationship between the rates of hydrogen migration to the bubble interface, carbon and hydrogen atom reactions for methane formation, and attendant volumetric bubble growth. The model predicts equilibrium methane bubble pressures that agree with those predicted by existing models at high temperatures. Significantly, the model predicts equilibrium methane pressures that are remarkably lower than the extrapolated predictions of the existing models at lower temperatures, e.g., 250 °C. In summary, the model establishes a methodology to understand and quantify methane pressure development and decarburization across the length and time scales that are relevant to hydrogen attack.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"253 ","pages":"Article 112999"},"PeriodicalIF":7.4,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143922682","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}
{"title":"Indirect impact of quorum sensing on corrosion of graphene-coated copper via sulfate-reducing bacteria biofilm enhancement","authors":"Ramesh Devadig , Vaibhav Handa , Jawaharraj Kalimuthu , Suvarna N.L. Talluri , Saurabh Sudha Dhiman , Tingyue Gu , Venkataramana Gadhamshetty","doi":"10.1016/j.corsci.2025.112988","DOIUrl":"10.1016/j.corsci.2025.112988","url":null,"abstract":"<div><div>Graphene is widely explored as a non-invasive coating to prevent corrosion by microbial biofilms, yet its vulnerability to quorum sensing (QS)-regulated colonization remains unclear. This study presents the effects of initial biofilm formation and microbial corrosion on graphene-coated copper (Gr/Cu) via QS mechanisms. Exogenous acyl-homoserine lactones (AHLs, 20 ppm w/v) doubled sessile cell attachment and reduced corrosion resistance fourfold, corroborated by a threefold increase in weight loss. Transcriptomic analysis revealed 86 % upregulation of QS-related genes, including those linked to attachment and exopolysaccharide synthesis. These findings demonstrate an indirect yet significant role of QS in promoting SRB biofilms and accelerating corrosion.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"253 ","pages":"Article 112988"},"PeriodicalIF":7.4,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143895162","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}