Corrosion Science最新文献

{"title":"Tailoring stress corrosion cracking resistance of pearlitic steel wires via composition and cold drawing ratio","authors":"Zeling Zhang ,&nbsp;Wenwei Qiao ,&nbsp;Yan Xu ,&nbsp;Linfeng Wang ,&nbsp;Ju Yao ,&nbsp;Lichu Zhou ,&nbsp;Xuefeng Zhou ,&nbsp;Matthew Dargusch ,&nbsp;Andrej Atrens ,&nbsp;Jeffrey Venezuela ,&nbsp;Zonghan Xie ,&nbsp;Feng Fang","doi":"10.1016/j.corsci.2025.113368","DOIUrl":"10.1016/j.corsci.2025.113368","url":null,"abstract":"<div><div>High-strength pearlitic steel wires are critical for enhancing the load-bearing efficiency of bridge structures. However, increased strength often comes at the cost of greater stress corrosion susceptibility. This study investigated how composition and cold-draw ratio (CDR) influence the stress corrosion fracture of pearlitic steel wires with the same tensile strength. Increasing the carbon and silicon content in the steel wire refined the pearlite lamellar spacing from 81 nm to 27 nm, decreased the corrosion current density (<em>i</em>_{<em>corr</em>}) from 4.57 × 10⁻⁴A·cm² to 0.77 × 10⁻⁴ A·cm², decreased the proportion of reversible hydrogen traps from 92.9 % to 87.4 %, and increased the average time for stress corrosion fracture from 8.8 h to 66.4 h. In contrast, increasing the CDR from 75 % to 78 % (with similar compositions) reduced the lamellar spacing from 81 nm to 54 nm, decreased the corrosion current density (<em>i</em>_{<em>corr</em>}) from 4.57 × 10⁻⁴A·cm² to 2.45 × 10⁻⁴ A·cm², slightly decreased the reversible hydrogen traps from 92.9 % to 92.2 %, and increased the fracture time from 8.8 h to 18.7 h. These findings provided mechanistic insights into optimising composition and deformation processing to enhance the stress corrosion cracking resistance of pearlitic steel wires.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"257 ","pages":"Article 113368"},"PeriodicalIF":7.4,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145216338","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":"The evolution process of rust layer formed on the surface of low-alloy steels in simulated marine atmospheric environment","authors":"Qingfeng Hou ,&nbsp;Yuxin Qi ,&nbsp;Rong Chen ,&nbsp;Haitao Wang ,&nbsp;Chao Xiang ,&nbsp;En-Hou Han","doi":"10.1016/j.corsci.2025.113372","DOIUrl":"10.1016/j.corsci.2025.113372","url":null,"abstract":"<div><div>A rust layer formed on the surface of the weathering steel sample after a 288-hour wet/dry cyclic corrosion test simulating a marine atmospheric environment. The results indicate that the degree of crystallization of the rust near the metal is poor, and corrosion products accumulate into a rust layer characterized by good adhesion and a dense structure, as observed through FIB-TEM analysis. The degree of crystallization of the corrosion products is slightly better in the band-like rust and the band-like rust achieves the secondary allocation of elements in the rust layer. Additionally, CuFeO₂ nanocrystalline formed in the band-like rust and phosphate with chromium ions is dispersed in rust near the metal exhibiting a synergistic effect in enhancing rust protection capability. This work analyzes the transformation behavior of corrosion products by characterizing the rust layer of samples subjected to indoor simulated atmospheric corrosion, thereby deepening the understanding of the evolution process of the rust layer.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"258 ","pages":"Article 113372"},"PeriodicalIF":7.4,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145189564","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":"Grain/phase boundary engineering and high Cr contents enhancing oxidation resistance of dual-phase multi-principal component alloys","authors":"Huijie Wei ,&nbsp;Ping Huang ,&nbsp;Fei Wang","doi":"10.1016/j.corsci.2025.113369","DOIUrl":"10.1016/j.corsci.2025.113369","url":null,"abstract":"<div><div>The oxidation behavior of dual-phase FeCrNiAlTi multi-principal component alloys (MCAs) with tailored grain/phase boundaries (GBs/PBs) lengths was systematically investigated by isothermal oxidation at 800℃ in air. Experimental results demonstrate that GBs/PBs engineering, when coupled with chemical composition tuning, yields a significant enhancement of oxidation resistance. The alternating distribution of face-centered cubic (FCC) and body-centered cubic (BCC) grains with short interphase distances facilitates lateral oxide growth along boundaries, promoting the formation of a continuous oxide film. Specifically, prolonged GBs/PBs lengths (up to 320.472 mm⁻¹) and high Cr content in BCC phases (54.20 %) accelerate the diffusion kinetics of protective elements (Al/Cr) during initial oxidation, enabling rapid formation of dense, continuous oxidation scales composed of Al₂O₃ and Cr₂O₃. Notably, the continuous Al₂O₃ layer acts as an effective barrier, suppressing subsequent outward Cr diffusion and inward oxygen ingress, thereby decelerating oxidation kinetics (parabolic rate constant <em>k</em>_<em>p</em> = 0.19 ×10⁻³ mg²·cm⁻⁴·h⁻¹) and outperforming many previously reported MCAs. This work highlights that GBs/PBs engineering, coupled with chemical composition adjustment, offers a viable pathway for developing high-performance MCAs for high-temperature structural applications.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"258 ","pages":"Article 113369"},"PeriodicalIF":7.4,"publicationDate":"2025-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145189565","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":"Passive-to-active oxidation behavior of Mo-silicide coatings with and without Al and B additions","authors":"J.R. Becker,&nbsp;J.H. Perepezko","doi":"10.1016/j.corsci.2025.113362","DOIUrl":"10.1016/j.corsci.2025.113362","url":null,"abstract":"<div><div>The active oxidation behavior of Mo-silicide coatings produced by pack cementation was analyzed to evaluate the effect of separate Al or B additions, and both Al and B additions in the SiO₂ scale. The coatings were tested at 1500°C and Po₂= 10⁻⁴ atm for durations of 2, 4, 6, 8, and 20 h. The coatings were preoxidized and consisted of mostly MoSi₂ with a silica scale. After 20 h, each coating consisted of a thick SiO₂ layer, followed by Mo₅Si_{3<del>.</del>} A thermodynamic analysis was conducted to determine the passive-to-active transition for the MoSi₂, Mo₅Si₃, and Mo₃Si phases. Additionally, the model was modified for additives in SiO₂, which explains why with low levels of additions, little difference was seen in the final microstructure of each coating and indicates that additives with a high basicity can yield a higher passive-to-active transition temperature.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"257 ","pages":"Article 113362"},"PeriodicalIF":7.4,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145216336","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":"Corrosion susceptibility of different microstructural zones in X65 steel weld joints under supercritical CO2 environment","authors":"Xinxin Fan ,&nbsp;Guangyu Liu ,&nbsp;Cailin Wang ,&nbsp;Qihui Hu ,&nbsp;Yuxing Li","doi":"10.1016/j.corsci.2025.113359","DOIUrl":"10.1016/j.corsci.2025.113359","url":null,"abstract":"<div><div>In light of the significant research gap concerning the corrosion behavior of welded joints under supercritical CO₂ pipeline conditions, this study introduces an in-situ monitoring system based on electrochemical noise. A comprehensive investigation was carried out using a supercritical CO₂ corrosion testing platform integrated with multiple characterization techniques, including EBSD, SEM, and 3D profilometry, to evaluate the influence of moisture content and microstructural features on the corrosion susceptibility of X65 steel welded joints. The results indicate that under varying moisture conditions in supercritical CO₂, the heat-affected zone (HAZ) exhibited the highest uniform corrosion rate (0.0946 mm/y) and localized corrosion rate (1.946 mm/y) among the base metal, weld zone, and HAZ. EN analysis revealed the coexistence of both stable and metastable pitting in all specimens. Notably, the HAZ showed the highest electrochemical potential noise (EPN) amplitude (0.24 V) and electrochemical current noise (ECN) amplitude (1.08 × 10⁻⁸ A), along with the shortest fluctuation period (413 s), confirming its pronounced corrosion susceptibility. Microstructural analysis further revealed that the ultrafine-grained structure of the HAZ possessed the highest grain boundary density, with KAM values reaching 1.8°. The combined effects of grain refinement, elevated grain boundary density, and residual stress were identified as the primary contributors to the corrosion mechanisms in the HAZ.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"258 ","pages":"Article 113359"},"PeriodicalIF":7.4,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145189566","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":"Exploring the influence of Nb content on high-temperature oxidation of NiTi shape memory alloys: Kinetics and Raman Spectroscopy study","authors":"C.B. Martins Júnior ,&nbsp;J.G.C. Passos ,&nbsp;R. Silva ,&nbsp;A.M. de Sousa Malafaia ,&nbsp;A.G. Rodrigues ,&nbsp;J.L. Smialek ,&nbsp;B. Gleeson ,&nbsp;C.A.D. Rovere","doi":"10.1016/j.corsci.2025.113361","DOIUrl":"10.1016/j.corsci.2025.113361","url":null,"abstract":"<div><div>This study investigated the high-temperature oxidation kinetics of NiTi shape memory alloys containing 9, 10.5, and 12 at% Nb through isothermal oxidation at 800, 900 and 1000 °C in air for up to 100 h. The oxide scales were characterized by XRD, SEM/EDS and Raman Spectroscopy. Nb greatly improved oxidation resistance across all tested concentrations and temperatures. At 800 °C, all the ternary alloys showed similar mass gain during the exposure time. At 900 °C, the oxidation rate decreased with increasing Nb content up to 10.5 at% but increased again at 12 at%. At 1000 °C, all the alloys suffered scale growth and spallation. NiTi alloy oxide scale was composed of TiO₂ and NiTiO₃, while the NiTiNb alloys, in addition to these phases, exhibited TiNb₂O₇ and Ti₂O₃. Nb-enrichment of TiO₂ and the formation of Ti₂O₃ are likely responsible for the increased oxidation resistance of the ternary alloys.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"258 ","pages":"Article 113361"},"PeriodicalIF":7.4,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145219450","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":"New insights into intergranular corrosion mechanism of high-strength Al-Zn-Mg-Cu alloys","authors":"Hao Liu ,&nbsp;Liankui Wu ,&nbsp;Fahe Cao ,&nbsp;Qingqing Sun","doi":"10.1016/j.corsci.2025.113364","DOIUrl":"10.1016/j.corsci.2025.113364","url":null,"abstract":"<div><div>This study provides new insights into the intergranular corrosion (IGC) mechanism of high-strength Al-Zn-Mg-Cu alloys (i.e., 7000 series Al alloys). Utilizing FIB, SEM, and TEM techniques, the microstructural evolution of 7055, 7150, and 7085 Al alloys during IGC in 3.5 wt% NaCl solution was characterized. Results confirm that IGC preferentially initiates at anodic grain boundary precipitates (GBPs, MgZn₂) and propagates along precipitation-free zones (PFZs) and the adjacent aluminum matrix. Furthermore, nano/submicro-scale Al₂Cu precipitates (50 ∼ 300 nm) and Cu clusters (∼50 nm) distributed along the corroded grain boundaries serve as active cathodic phases, promoting IGC propagation through PFZs while simultaneously accelerating localized dissolution of the adjacent aluminum matrix. This cathodic acceleration contributes to a characteristic corrosion width of 100 ∼ 300 nm within the aluminum matrix. ‌The discovery of Al₂Cu precipitates/Cu clusters and their roles in intergranular corrosion has significantly enhanced the understanding of IGC mechanism in 7000 series Al alloys.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"257 ","pages":"Article 113364"},"PeriodicalIF":7.4,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145154251","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":"Improving CMAS corrosion resistance of RE2Si2O7 by non-equimolar component design","authors":"Siyu Hu ,&nbsp;Xin Zhong ,&nbsp;Yiming Wu ,&nbsp;Xuemei Song ,&nbsp;Du Hong ,&nbsp;Liping Huang ,&nbsp;Yaran Niu ,&nbsp;Xuebin Zheng","doi":"10.1016/j.corsci.2025.113365","DOIUrl":"10.1016/j.corsci.2025.113365","url":null,"abstract":"<div><div>Rare-earth disilicates (RE₂Si₂O₇) environmental barrier coatings (EBCs) face severe degradation from molten calcium-magnesium-aluminosilicate (CMAS) deposits in high-temperature environments. This study proposes a strategy to improve the CMAS corrosion resistance of RE₂Si₂O₇ through the design of non-equimolar rare-earth elements. Four kinds of (<em>n</em>RE_<em>xi</em>)₂Si₂O₇ ((Yb_0.8Er_0.1Y_0.1)₂Si₂O₇, (Yb_0.8Er_0.1Tm_0.1)₂Si₂O₇, (Yb_0.7Er_0.1Tm_0.1Y_0.1)₂Si₂O₇, (Yb_0.7Er_0.1Tm_0.1Ho_0.1)₂Si₂O₇) were synthesized via solid-state reactions and subjected to CMAS corrosion at 1400 ℃ for 4 and 25 h. All compositions retained the thermodynamically stable β-phase up to 1600 ℃. The CMAS corrosion results indicated that compared to Yb₂Si₂O₇, the multi-rare-earth composition design significantly improves the formation of apatite products, and the continuous product layer is an effective barrier against CMAS penetration. The corrosion resistance against CMAS was significantly influenced by both the types of RE^3 + cations and their stoichiometric proportions in (<em>n</em>RE_<em>xi</em>)₂Si₂O₇. After corrosion for 25 h, (Yb_0.8Er_0.1Tm_0.1)₂Si₂O₇ demonstrated exceptional performance, forming a dense, continuous apatite layer that suppressed CMAS infiltration. The corrosion mechanism involved RE³⁺ dissolution, apatite precipitation, and Ca/Si ratio evolution. The non- equimolar multiple rare-earth doping enhanced lattice stability and reduced distortion optimizing the thermodynamic-kinetic balance, providing an effective method for modulating the corrosion properties of rare-earth silicates used as EBCs.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"257 ","pages":"Article 113365"},"PeriodicalIF":7.4,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145216335","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":"Widespread erroneous analysis of the Fe 2p peak in X-ray photoelectron spectroscopy examination in corrosion studies","authors":"Anthony E. Hughes ,&nbsp;Christopher D. Easton ,&nbsp;Prasaanth Ravi Anusuyadevi ,&nbsp;Thomas J. Raeber ,&nbsp;Nick C. Wilson ,&nbsp;Arjan Mol","doi":"10.1016/j.corsci.2025.113357","DOIUrl":"10.1016/j.corsci.2025.113357","url":null,"abstract":"<div><div>XPS analysis is routinely used in corrosion studies to analyse corrosion product and protective layers on a range of metals. In the case of transition metals and especially iron, the extraction of information about chemical species including identification and quantification requires complex fitting of the metal 2p spectrum. Unfortunately, there is extensive misunderstanding of what is required for fitting of these metal 2p photoelectron peaks. In the case of high spin Fe 2p compounds there is a complex structure based on multiplet and satellite peaks which is often ignored. In this review of the application of XPS in the study of corrosion and protection of ferrous metals; we quantify the extent of misinterpretation of XPS Fe 2p spectra within the literature. It is found that in over 70 % of papers there is an adamant misunderstanding of the requirements for fitting Fe 2p, which can be divided into three groups. First, in the most serious case, there seems to be a lack of understanding of spin orbit coupling which gives rise to the major Fe 2p_3/2 and Fe 2p_1/2 peaks with the latter being incorrectly assigned to a different chemical species. Second, satellite structures are often assigned to a different chemical species. Third, single peaks are used to fit chemical components whereas a complex multiplet structure should be employed. We establish the extent to which these errors are made by critical appraisal of over 220 papers published in selected years between 2015 and 2024.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"257 ","pages":"Article 113357"},"PeriodicalIF":7.4,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145216337","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":"Corrosion and Volta potential evolution of high purity Mg treated in chloride solutions of bi-valent Cu, Mn, Ni, and Zn cations","authors":"K.A. Yasakau ,&nbsp;B. Vaghefinazari ,&nbsp;N. Scharnagl ,&nbsp;S. Lamaka ,&nbsp;M.L. Zheludkevich","doi":"10.1016/j.corsci.2025.113360","DOIUrl":"10.1016/j.corsci.2025.113360","url":null,"abstract":"<div><div>The corrosion resistance of magnesium-based materials is known to be highly sensitive to even trace amounts of noble impurities. In this study, the surface and electrochemical properties of high-purity magnesium (51 ppm Fe) (HPMg) treated in 1 mM chloride solutions of bivalent Cu, Mn, Ni, or Zn cations were investigated by AFM/SKPFM, H₂ evolution measurements, DC-polarization, SEM, and XPS. The goal was to understand the potential effects of galvanic replacement induced by the respective cations. The cathodic kinetics drastically increased on HPMg samples treated in Cu solutions. Additionally, the Volta potential difference (VPD) of HPMg increased following treatment in Cu and Zn solutions. Furthermore, the VPD dropped after subsequent exposure to NaCl, which was attributed to the loss of galvanic coupling between magneisum and the noble deposits formed in a galvanic replacement reaction. In contrast, no significant VPD changes were observed on HPMg surface for Mn and Ni treatments. XPS analysis confirmed that Cu and Zn metals/oxides and Mn and Ni hydroxides were displaced by the corrosion film formed on the HPMg after exposure to NaCl. The observed changes in surface properties and corrosion kinetics of HPMg were rationalized.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"257 ","pages":"Article 113360"},"PeriodicalIF":7.4,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145216436","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}