Corrosion Science最新文献

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Long term protection of silicide coating at 1700 °C in air with HfO2 modification HfO2改性硅化物涂层在1700 °C空气中的长期保护
IF 7.4 1区 材料科学
Corrosion Science Pub Date : 2025-06-18 DOI: 10.1016/j.corsci.2025.113122
Hongkang Ou, Yangfan Liu, Kaifei Fan, Yuyu Zhang, Lingxiang Guo, Bing Liu, Jia Sun, Qiangang Fu
{"title":"Long term protection of silicide coating at 1700 °C in air with HfO2 modification","authors":"Hongkang Ou,&nbsp;Yangfan Liu,&nbsp;Kaifei Fan,&nbsp;Yuyu Zhang,&nbsp;Lingxiang Guo,&nbsp;Bing Liu,&nbsp;Jia Sun,&nbsp;Qiangang Fu","doi":"10.1016/j.corsci.2025.113122","DOIUrl":"10.1016/j.corsci.2025.113122","url":null,"abstract":"<div><div>HfO<sub>2</sub>-modified MoSi<sub>2</sub> coating was fabricated on Nb-alloy via supersonic atmosphere plasma spraying to protect against ultra-high temperature oxidation. The service life of the modified coating reached 200 h at 1700 °C, and the excellent oxidation resistance was attributed to the SiO<sub>2</sub>+HfSiO<sub>4</sub> duplex scale stabilized by the Hf-dopant and the pinned phase of HfSiO<sub>4</sub>. Continuous volatilization of SiO<sub>2</sub> triggered the outward diffusion and significant loss of Si element, dominating the degradation of the MoSi<sub>2</sub>-based coating during oxidation. This work achieved long-term protection for Nb-alloy at 1700 °C, providing effective method and theoretical foundations for the design of the antioxidant coating.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"255 ","pages":"Article 113122"},"PeriodicalIF":7.4,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366169","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
Revealing the origin of the exceptional elevated-temperature oxidation resistance of an L12-strengthened NiCoCrFe-based high-entropy alloy 揭示了一种l12强化nicocrfe基高熵合金具有优异的高温抗氧化性的原因
IF 7.4 1区 材料科学
Corrosion Science Pub Date : 2025-06-18 DOI: 10.1016/j.corsci.2025.113124
Wenkang Long , Yinghao Zhou , Yuankui Cao , Li Wang , Ao Fu , Tao Yang , ZhiYu Sun , Xiaofei Mo , Hai Nan , Bin Liu , Yong Liu
{"title":"Revealing the origin of the exceptional elevated-temperature oxidation resistance of an L12-strengthened NiCoCrFe-based high-entropy alloy","authors":"Wenkang Long ,&nbsp;Yinghao Zhou ,&nbsp;Yuankui Cao ,&nbsp;Li Wang ,&nbsp;Ao Fu ,&nbsp;Tao Yang ,&nbsp;ZhiYu Sun ,&nbsp;Xiaofei Mo ,&nbsp;Hai Nan ,&nbsp;Bin Liu ,&nbsp;Yong Liu","doi":"10.1016/j.corsci.2025.113124","DOIUrl":"10.1016/j.corsci.2025.113124","url":null,"abstract":"<div><div>Nanoparticle-strengthened high-entropy alloys (HEAs) are currently served as potential high-temperature materials for modern industrial applications. In this work, the oxidation behavior of an L1<sub>2</sub>-strengthened HEA with superior mechanical properties in elevated temperatures was systematically investigated by isothermal oxidation tests at 700, 800 and 900 °C in air. The results reveal that this alloy exhibits exceptional oxidation resistance at 700–900 °C, compared to typical nickel-based and high-entropy alloys. At 700 ℃, continuous Cr<sub>2</sub>O<sub>3</sub> is the key to the oxidation resistance. More complex hierarchical oxide scales formed at 800 and 900 °C, primarily consisted of the TiO<sub>2</sub>, spinel, Cr<sub>2</sub>O<sub>3</sub> and Al<sub>2</sub>O<sub>3</sub>. The synergy of Cr<sub>2</sub>O<sub>3</sub> and Al<sub>2</sub>O<sub>3</sub> oxide scale at 800 °C ensure the oxidation resistance, but the spinel oxide scales formed lead to the spallation of the outermost oxide film and the internal oxidation. After oxidation at 900 ℃, the formation of spinel and TiO<sub>2</sub> oxide layer can effectively reduce the evaporation of Cr<sub>2</sub>O<sub>3</sub> oxide layer. Furthermore, the blocking effect of TiTaO<sub>4</sub> layer on Al ions and the high diffusion rate of Al element resulting in the formation of a continuous and dense Al<sub>2</sub>O<sub>3</sub> oxide layer, playing a key role in the oxidation resistance at 900 ℃.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"255 ","pages":"Article 113124"},"PeriodicalIF":7.4,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144321289","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
DRT analysis on EIS data to identify aerobic-anaerobic corrosion evolution of low-carbon steel under deep geological disposal condition 对EIS数据进行DRT分析,识别深层地质处置条件下低碳钢的好氧-厌氧腐蚀演变
IF 7.4 1区 材料科学
Corrosion Science Pub Date : 2025-06-17 DOI: 10.1016/j.corsci.2025.113118
Youzhi Wang , Shuzhen Qiao , Jingli Xie , Yingmin Wang , Long Hao , Jianqiu Wang , Wei Ke
{"title":"DRT analysis on EIS data to identify aerobic-anaerobic corrosion evolution of low-carbon steel under deep geological disposal condition","authors":"Youzhi Wang ,&nbsp;Shuzhen Qiao ,&nbsp;Jingli Xie ,&nbsp;Yingmin Wang ,&nbsp;Long Hao ,&nbsp;Jianqiu Wang ,&nbsp;Wei Ke","doi":"10.1016/j.corsci.2025.113118","DOIUrl":"10.1016/j.corsci.2025.113118","url":null,"abstract":"<div><div>The aerobic-anaerobic corrosion transition of low-carbon steel under deep geological disposal conditions is critical in corrosion evaluation of disposal containers. In this work, the corrosion evolution behavior of Q345R low-carbon steel in Beishan underground water under sealed conditions has been investigated by electrochemical impedance spectroscopy (EIS), and besides the redox potential (Eh) evolution of the corrosion electrolyte has been recorded. The results indicate that the distribution of relaxation time (DRT) analysis on EIS data can well identify the oxygen reduction reaction (ORR)-related time-constant evolution. Therefore, it could be proposed that DRT analysis on EIS data combined with Eh monitoring is applicable for the aerobic-anaerobic corrosion transition investigation of low-carbon steel under electrolyte corrosion conditions.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"255 ","pages":"Article 113118"},"PeriodicalIF":7.4,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144331119","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
Uncovering the influence of Mo and N on the hot-corrosion resistance of super austenitic stainless steels in a chloride-containing oxidizing environment 揭示Mo和N对超奥氏体不锈钢在含氯化物氧化环境中耐热腐蚀性能的影响
IF 7.4 1区 材料科学
Corrosion Science Pub Date : 2025-06-17 DOI: 10.1016/j.corsci.2025.113120
Jianwen Jia , Lifeng Hou , Hong Luo , Shucai Zhang , Hongxia Wang , Huayun Du , Yide Wang , Yinghui Wei
{"title":"Uncovering the influence of Mo and N on the hot-corrosion resistance of super austenitic stainless steels in a chloride-containing oxidizing environment","authors":"Jianwen Jia ,&nbsp;Lifeng Hou ,&nbsp;Hong Luo ,&nbsp;Shucai Zhang ,&nbsp;Hongxia Wang ,&nbsp;Huayun Du ,&nbsp;Yide Wang ,&nbsp;Yinghui Wei","doi":"10.1016/j.corsci.2025.113120","DOIUrl":"10.1016/j.corsci.2025.113120","url":null,"abstract":"<div><div>The corrosion behavior of two super austenitic stainless steels (SASSs) 4Mo0.06 N and 6Mo0.18 N at 800 ℃ in a chloride-containing oxidizing environment was meticulously examined. The results indicated that higher Mo and N contents in 6Mo0.18 N facilitate the formation of Laves, σ phase and Cr<sub>2</sub>N, concomitantly, the volatile Mo-oxides weaken the protectiveness of oxides scales and enhance the diffusion of chlorine, thereby exacerbating corrosion. Here, we elucidate that the addition of more Mo and N results in an increase of secondary phase particles in 6Mo0.18 N as well as chlorine-induced grain boundaries deterioration, causing an obvious internal corrosion. Instead, the distinctly enhanced corrosion resistance in 4Mo0.06 N is attributed to the formation of continuous Ni-Mo rich metallic phases at the oxide/matrix interfaces so as to reduce the diffusion of ions, which effectively diminishes the inner corrosion. These findings provide a great guiding significance in optimizing high-performance alloy designs for their potential applications.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"255 ","pages":"Article 113120"},"PeriodicalIF":7.4,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144306426","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
Corrosion behavior of FeNiCrAl duplex alloys with different C concentrations in borated and lithiated high-temperature water 不同C浓度FeNiCrAl双相合金在硼化和锂化高温水中的腐蚀行为
IF 7.4 1区 材料科学
Corrosion Science Pub Date : 2025-06-16 DOI: 10.1016/j.corsci.2025.113115
Fangqiang Ning , Libo Zhang , Hong Yan , Hui Wang , Jia Liu , Ping Deng
{"title":"Corrosion behavior of FeNiCrAl duplex alloys with different C concentrations in borated and lithiated high-temperature water","authors":"Fangqiang Ning ,&nbsp;Libo Zhang ,&nbsp;Hong Yan ,&nbsp;Hui Wang ,&nbsp;Jia Liu ,&nbsp;Ping Deng","doi":"10.1016/j.corsci.2025.113115","DOIUrl":"10.1016/j.corsci.2025.113115","url":null,"abstract":"<div><div>Corrosion behavior of FeNiCrAl duplex alloys in borated and lithiated high-temperature water and the effect of C addition on its corrosion behavior were investigated. The Cr-rich inner oxide film (Cr<sub>2</sub>O<sub>3</sub>+FeCr<sub>2</sub>O<sub>4</sub>) on α phase with 22.5 wt% Cr content exhibited superior protective properties compared to the Cr-rich spinel oxide film (FeCr<sub>2</sub>O<sub>4</sub>) on γ phase with 15.2 wt% Cr content, thereby resulting in a thinner inner oxide film on α phase than that on γ phase. The precipitation of amounts of Al<sup>3</sup><sup>+</sup> dissolved from B2-NiAl phase led to the formation of numerous outer oxide particles enriched in Al on α and γ phases. The C addition increased the Cr content of α and γ phase, and enhanced the protective properties of the inner oxide film on γ phase by increasing its Cr content, while had little effect on the composition and protective properties of the inner oxide film on α phase. The corrosion mechanism of FeNiCrAl duplex alloys and the effect mechanism of C addition is also discussed.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"255 ","pages":"Article 113115"},"PeriodicalIF":7.4,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144306425","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
Temperature-dependent oxidation behavior of Y-Hf co-doped and Co-free Al16Cr20Fe20Ni44 eutectic multi-principal elements alloy at 1100–1300 °C Y-Hf共掺和不含co的Al16Cr20Fe20Ni44共晶多主元素合金1100 ~ 1300 ℃的温度依赖氧化行为
IF 7.4 1区 材料科学
Corrosion Science Pub Date : 2025-06-16 DOI: 10.1016/j.corsci.2025.113116
Aihui Huang , Yusheng Tian , Yifeng Tang , Guoliang Zhu , Shilin Xia , Xiaofeng Zhao , Paul K. Chu , Chao Yang , Xiaoqin Zeng
{"title":"Temperature-dependent oxidation behavior of Y-Hf co-doped and Co-free Al16Cr20Fe20Ni44 eutectic multi-principal elements alloy at 1100–1300 °C","authors":"Aihui Huang ,&nbsp;Yusheng Tian ,&nbsp;Yifeng Tang ,&nbsp;Guoliang Zhu ,&nbsp;Shilin Xia ,&nbsp;Xiaofeng Zhao ,&nbsp;Paul K. Chu ,&nbsp;Chao Yang ,&nbsp;Xiaoqin Zeng","doi":"10.1016/j.corsci.2025.113116","DOIUrl":"10.1016/j.corsci.2025.113116","url":null,"abstract":"<div><div>Eutectic multi-principal elements alloys (EMPEAs) are promising candidates for high-temperature applications due to their exceptional mechanical properties and thermal stability. Herein, the temperature-dependent oxidation behavior of a Y-Hf co-doped Co-free Al<sub>16</sub>Cr<sub>20</sub>Fe<sub>20</sub>Ni<sub>44</sub> EMPEA in the temperature range between 1100 and 1300 °C is investigated. The oxidation product is exclusively Al<sub>2</sub>O<sub>3</sub> scale with the columnar grain microstructure in this temperature range, indicating that inward O diffusion plays a more critical role than Al diffusion, consequently leading to a small oxidation rate. At 1100–1200 °C, the EMPEA exhibits superior oxidation resistance due to the higher Al activity and lower reactive element (RE) in the Al-depleted layer, while the smaller coefficient of thermal expansion (CTE) minimizes residual stress. However, the EMPEA shows inferior oxidation resistance at 1300 °C, likely because the inherent softness degrades the interfacial instability under elevated thermal stress, leading to oxide scale spallation. All in all, the Y-Hf co-doped Co-free Al<sub>16</sub>Cr<sub>20</sub>Fe<sub>20</sub>Ni<sub>44</sub> EMPEA has large potential in high-temperature applications and offers a cost-effective alternative with sustained performance stability up to 1200 °C.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"255 ","pages":"Article 113116"},"PeriodicalIF":7.4,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144306344","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 steam flow rate on oxidation kinetics of silicon carbide at 1400–1600 °C 1400 ~ 1600 ℃蒸汽流量对碳化硅氧化动力学的影响
IF 7.4 1区 材料科学
Corrosion Science Pub Date : 2025-06-14 DOI: 10.1016/j.corsci.2025.113098
Hai Pham , Masaki Kurata , Yuji Nagae , Ryo Ishibashi , Masana Sasaki
{"title":"Influence of steam flow rate on oxidation kinetics of silicon carbide at 1400–1600 °C","authors":"Hai Pham ,&nbsp;Masaki Kurata ,&nbsp;Yuji Nagae ,&nbsp;Ryo Ishibashi ,&nbsp;Masana Sasaki","doi":"10.1016/j.corsci.2025.113098","DOIUrl":"10.1016/j.corsci.2025.113098","url":null,"abstract":"<div><div>Being potential future materials for accident-tolerant fuel cladding, the oxidation behavior and kinetics of silicon carbide (SiC) under extreme conditions like severe accidents must be elucidated. In this study, oxidation tests of SiC at 1400–1600 °C for 1–5 h using a newly developed test facility using laser as a heat source, under two different flow rates of H<sub>2</sub>O/Ar gas mixture have been conducted. The objective is to investigate the influence of steam flow rate on the formation of SiO<sub>2</sub> scale and its subsequent volatilization. Oxidation kinetics of SiC was evaluated via mass change of samples before and after the oxidation tests. Based on these mass changes, parabolic oxidation rates for SiO<sub>2</sub> formation and its subsequent linear volatilization rates were calculated. The Arrhenius dependence of the parabolic oxidation and linear volatilization rate constants were then plotted. Results of this study indicated that SiC exhibits excellent oxidation resistance at 1400–1600 °C in Ar/steam atmospheres. Steam flow rate has a significant influence on volatilization of SiO<sub>2</sub> but has minor effects over its formation. Oxidation of SiC in steam at high temperature may follow mass gain or mass loss regime, depending on the steam flow rate. Two oxidation patterns were suggested and discussed. In the first oxidation pattern, the SiO<sub>2</sub> formation is dominated by its volatilization. The second oxidation pattern (steady stage) is reached when the SiO<sub>2</sub> formation rate is equivalent to its volatilization rate. Time to reach this steady stage was defined, based on the parabolic oxidation rate and linear volatilization rate.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"255 ","pages":"Article 113098"},"PeriodicalIF":7.4,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144279263","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
Microstructural influence on high-temperature oxidation of near-α titanium alloys: Timetal 834 and 6242S Timetal 834和6242S对近α钛合金高温氧化的组织影响
IF 7.4 1区 材料科学
Corrosion Science Pub Date : 2025-06-14 DOI: 10.1016/j.corsci.2025.113081
D. Kuczyńska-Zemła , M.C. Marco de Lucas , L. Lavisse , M.R. Zemła , F. Herbst , V. Pacorel , P. Kwaśniak
{"title":"Microstructural influence on high-temperature oxidation of near-α titanium alloys: Timetal 834 and 6242S","authors":"D. Kuczyńska-Zemła ,&nbsp;M.C. Marco de Lucas ,&nbsp;L. Lavisse ,&nbsp;M.R. Zemła ,&nbsp;F. Herbst ,&nbsp;V. Pacorel ,&nbsp;P. Kwaśniak","doi":"10.1016/j.corsci.2025.113081","DOIUrl":"10.1016/j.corsci.2025.113081","url":null,"abstract":"<div><div>In this study, the oxidation behavior of two titanium alloys designed for high-temperature applications, Timetal 834 and Timetal 6242S, was compared. Both are classified as near-<span><math><mi>α</mi></math></span> alloys and possess alloying elements significantly enhancing their resistance to high-temperature oxidation. Applied oxidation routine included 100 and 500<!--> <!-->hours of prolonged thermal processing in ambient dry air at 600, 650, and 700<!--> <!-->°C. Such treated materials were investigated using complementary techniques: optical microscopy, scanning electron microscopy, electron/wave dispersive spectrometry, X-ray diffraction, and Raman spectroscopy. The results revealed that different oxide layer growth, between the two analyzed alloys, during high-temperature exposure was strongly related to their microstructures, and especially the arrangement of <span><math><mi>α</mi></math></span> and <span><math><mi>β</mi></math></span> phases. For longer exposure time (500<!--> <!-->h), the Ti834 alloy showed better oxidation resistance, despite the formation of micrometric nodules on its surface during oxidation, which were not observed in the Ti6242S alloy. The presented data clearly indicate the important role of the microstructure as a source of solute elements that control the structure and stoichiometry of the oxide layer and, consequently, the oxidation resistance.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"255 ","pages":"Article 113081"},"PeriodicalIF":7.4,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144331118","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
A hot-dip self-passive zinc alloy coating to inhibit the galvanic corrosion of a Mg alloy 一种抑制镁合金电偶腐蚀的热浸自钝化锌合金涂层
IF 7.4 1区 材料科学
Corrosion Science Pub Date : 2025-06-13 DOI: 10.1016/j.corsci.2025.113111
Mingyu Yang , Guang-Ling Song
{"title":"A hot-dip self-passive zinc alloy coating to inhibit the galvanic corrosion of a Mg alloy","authors":"Mingyu Yang ,&nbsp;Guang-Ling Song","doi":"10.1016/j.corsci.2025.113111","DOIUrl":"10.1016/j.corsci.2025.113111","url":null,"abstract":"<div><div>Galvanic corrosion is one of the most critical issues currently hindering the industrial applications of magnesium (Mg) alloys. In this study, to solve this problem effectively, durably, and economically, a 30-second 360°C rapid hot-dipping technique was developed to convert the surface of Mg alloy WE43 into a metallurgically bonded over 1 mm thick uniform Zn-alloy coating. The alloyed surface layer was characterized and evaluated using microscopic and electrochemical techniques. The results demonstrated that this surface coating had a multilayered microstructure and could self-passivate in 3.5 wt% NaCl. The self-corrosion current density of the Zn-alloyed surface was in the order of 10⁻⁶ A/cm², and the galvanic current density stably remained below 20 × 10⁻⁶ A/cm² when the surface-alloyed Mg alloy was coupled with pure Al or galvanized Q235 steel in the 3.5 wt% NaCl. The Zn-alloyed surface of the Mg alloy could even self-heal in case its surface was scratched. Based on the microstructural and electrochemical characteristics, the surface alloying mechanism on the WE43 is analyzed, and the underlying reasons for the outstanding galvanic corrosion resistance of the Zn-alloyed surface are elucidated.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"255 ","pages":"Article 113111"},"PeriodicalIF":7.4,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144279261","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
Effect of further precipitate refinement on mechanical properties and corrosion behavior of additively manufactured nickel aluminum bronze 析出相进一步细化对增材制造镍铝青铜力学性能和腐蚀行为的影响
IF 7.4 1区 材料科学
Corrosion Science Pub Date : 2025-06-13 DOI: 10.1016/j.corsci.2025.113114
Zhiyuan Jia , Rui Li , Mingzhi Chen , Zhandong Wang , Guifang Sun , En-Hou Han
{"title":"Effect of further precipitate refinement on mechanical properties and corrosion behavior of additively manufactured nickel aluminum bronze","authors":"Zhiyuan Jia ,&nbsp;Rui Li ,&nbsp;Mingzhi Chen ,&nbsp;Zhandong Wang ,&nbsp;Guifang Sun ,&nbsp;En-Hou Han","doi":"10.1016/j.corsci.2025.113114","DOIUrl":"10.1016/j.corsci.2025.113114","url":null,"abstract":"<div><div>The underwater direct metal deposition (UDMD) technique was employed to investigate the effects of further precipitate refinement on the mechanical and corrosion properties of additively manufactured nickel aluminum bronze (NAB) alloys, with conventional onshore direct metal deposition (DMD) used for comparison. The results demonstrated that both additively manufactured NAB samples exhibited suppressed precipitation of κ<sub>Ⅰ</sub> and κ<sub>Ⅳ</sub> phases. However, the κ<sub>Ⅲ</sub> precipitates in UDMD-processed samples were finer and more uniformly distributed in the interdendritic regions, thereby enhancing the tensile strength compared with DMD-processed samples. NAB alloys prepared by the UDMD process exhibited better corrosion resistance, with the corrosion current reduced by nearly half compared with the DMD process. This enhanced corrosion resistance is attributed to the formation of a denser and more uniform corrosion product film after 30 days of immersion. Moreover, the enhancement in cavitation erosion resistance was limited due to an increase in phase boundaries after precipitate refinement. These findings provide insights into the mechanical and corrosion performance of NAB alloys following continuous refinement in additive manufacturing.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"255 ","pages":"Article 113114"},"PeriodicalIF":7.4,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144290804","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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