Materials and Corrosion-werkstoffe Und Korrosion最新文献

{"title":"Eco-Friendly Surface Pretreatment for Electroless Ni-W-Sn-P Coating on Micro-Arc Oxidized AZ91D Magnesium Alloy: Evaluation of Corrosion Performance and Coating Properties","authors":"Loganathan S.,&nbsp;Tamilarasan T. R.,&nbsp;Sanjith Udayakumar","doi":"10.1002/maco.70112","DOIUrl":"https://doi.org/10.1002/maco.70112","url":null,"abstract":"<div>\u0000 \u0000 <p>This investigation presents a sustainable surface modification strategy to enhance the functional performance of AZ91D magnesium alloy. A duplex coating architecture was engineered, by integrating micro-arc oxidation (MAO), followed by an eco-friendly pretreatment and subsequent direct electroless nickel (DEN) plating to improve the surface protection of the alloy. Binary (MAO-Ni-P), ternary (MAO-Ni-W-P, MAO-Ni-Sn-P), and quaternary (MAO-Ni-W-Sn-P) alloy coatings were systematically deposited onto the substrate. The coated surfaces were characterized for morphological features and elemental composition using field emission scanning electron microscopy (FE-SEM) and energy-dispersive x-ray spectroscopy (EDS), respectively. Quantitative assessment of surface texture was undertaken via profilometric roughness measurements, while three-dimensional surface topography was examined with atomic force microscopy (AFM). Electrochemical behavior, including corrosion resistance, was evaluated by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) tests. The quaternary alloy coating demonstrated a marked improvement in surface smoothness, approximately 5.6-fold compared to the uncoated alloy, and exhibited superior electrochemical corrosion resistance, indicating substantially enhanced protective efficacy relative to bare AZ91D magnesium alloy.</p></div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"77 6","pages":"990-1001"},"PeriodicalIF":2.0,"publicationDate":"2026-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148147131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cover Picture: Materials and Corrosion. 6/2026","authors":"","doi":"10.1002/maco.70165","DOIUrl":"https://doi.org/10.1002/maco.70165","url":null,"abstract":"<p><b>Cover:</b></p><p>Corrosion morphology and pit depth of CFRP and Q235 samples under different coupling conditions observed by CLSM. According to the 3D corrosion images and the corresponding pit depth measurements, the pits on the Q235 carbon steel surface after coupling were deeper than those of the uncoupled samples, and the corrosion pits on the uncoupled sample surface were longer in diameter and shallower in corrosio. The pitting depth on the CFRP surface after coupling was shallower than that of the uncoupled sample, indicating that the galvanic effect accelerated the corrosion of the anodic Q235 carbon steel, while protecting the cathodic CFRP from corrosion degradation.</p><p>More detailed information can be found in:</p><p><i>Yue Hou, Zihao Guo,Tao Li, Xiaopeng Cheng, Shougang Chen</i>, Exploring Galvanic Corrosion Behavior of CFRP/Q235 Carbon Steel in Marine Environment, <i>Materials and Corrosion</i> <b>2026</b>, <i>77</i>, 874.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"77 6","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.70165","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148147139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimizing AA 5182 Alloy for High-Speed Propeller Applications in Quasi-Marine Environment: An Electrochemical and Erosion–Corrosion Analysis","authors":"Navid Hosseinabadi,&nbsp;Ali Khosravifard","doi":"10.1002/maco.70118","DOIUrl":"https://doi.org/10.1002/maco.70118","url":null,"abstract":"&lt;div&gt;\u0000 \u0000 &lt;p&gt;Heat-treated AA5182-H321 was optimized for high-speed propeller use by integrating a sacrificial Al–Mg interlayer and a diffusion-resistant epoxy–polyurethane topcoat. Electrochemical testing and weight-loss analysis demonstrated that the interlayer provided sacrificial-anode-based cathodic protection, while the topcoat limited oxygen and chloride ingress, mitigating intergranular corrosion of intermetallic principates and prevent erosion-corrosion in simulated marine environment. Performance was evaluated under salt fog, rotating quasi-marine immersion, and rotating abrasive environments. The H321 pretreatment homogenized β-phase distribution and reduced intergranular corrosion, lowering weight loss compared with the as-received alloy. Interlayers containing 20 wt.% Mg offered the most stable protection, with controlled sacrificial depletion across all conditions. Observed under-interlayer corrosion confirmed the need for a barrier topcoat. The combined interlayer–topcoat system produced a noble &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 \u0000 &lt;mrow&gt;\u0000 &lt;msub&gt;\u0000 &lt;mi&gt;E&lt;/mi&gt;\u0000 \u0000 &lt;mrow&gt;\u0000 &lt;mi&gt;corr&lt;/mi&gt;\u0000 &lt;mspace&gt;&lt;/mspace&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/msub&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;shift (–0.9 to –0.5 &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 \u0000 &lt;mrow&gt;\u0000 &lt;msub&gt;\u0000 &lt;mi&gt;V&lt;/mi&gt;\u0000 \u0000 &lt;mtext&gt;SCE&lt;/mtext&gt;\u0000 &lt;/msub&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;), reduced &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 \u0000 &lt;mrow&gt;\u0000 &lt;msub&gt;\u0000 &lt;mi&gt;i&lt;/mi&gt;\u0000 \u0000 &lt;mrow&gt;\u0000 &lt;mi&gt;corr&lt;/mi&gt;\u0000 &lt;mspace&gt;&lt;/mspace&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/msub&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;from &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 \u0000 &lt;mrow&gt;\u0000 &lt;msup&gt;\u0000 &lt;mn&gt;10&lt;/mn&gt;\u0000 \u0000 &lt;mrow&gt;\u0000 &lt;mo&gt;−&lt;/mo&gt;\u0000 \u0000 &lt;mn&gt;5&lt;/mn&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/msup&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt; to &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 \u0000 &lt;mrow&gt;\u0000 &lt;msup&gt;\u0000 &lt;mn&gt;10&lt;/mn&gt;\u0000 ","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"77 6","pages":"935-950"},"PeriodicalIF":2.0,"publicationDate":"2026-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148147075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"RETRACTED: Innovative Graphene-Based Nanocomposite Coatings for Advanced Corrosion Resistance in the Automotive Industry: Materials, Mechanisms, and Applications","authors":"R. Priyadharshini,&nbsp;Joseph Raj Xavier","doi":"10.1002/maco.70106","DOIUrl":"https://doi.org/10.1002/maco.70106","url":null,"abstract":"<div>\u0000 \u0000 <p>Corrosion in the automotive industry accelerates material degradation, shortens vehicle lifespan, and increases maintenance costs. Conventional coatings often lack durability and fail under harsh conditions. Graphene-based nanocomposite coatings have emerged as promising solutions due to graphene's excellent barrier properties, chemical stability, and mechanical strength. Recent advances involve graphene, graphene oxide, and reduced graphene oxide as additives in polymer/graphene, metal oxide/graphene, and ceramic/graphene hybrid coatings, enhancing electrochemical stability and, in some cases, enabling self-healing. Corrosion protection arises from improved barrier effects, passivation, and synergistic interactions between nanomaterials. Applications on steel chassis and aluminum panels show substantial resistance in aggressive environments. Despite promising lab results, challenges remain in scalable production, cost, and sustainability. Future research is expected to focus on multifunctional coatings combining self-healing, superhydrophobicity, and IoT-enabled corrosion monitoring, advancing next-generation automotive protection.</p></div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"77 6","pages":"951-989"},"PeriodicalIF":2.0,"publicationDate":"2026-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148146972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Masthead: Materials and Corrosion. 6/2026","authors":"","doi":"10.1002/maco.70168","DOIUrl":"https://doi.org/10.1002/maco.70168","url":null,"abstract":"","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"77 6","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.70168","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148147140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microstructural Evolution and Corrosion Behaviour of Al7075 Metal Matrix Composites Reinforced With Hexagonal Boron Nitride","authors":"V. Vignesh Kumar,&nbsp;K. Gomathi,&nbsp;T. Ramkumar,&nbsp;B. Balasubramanian,&nbsp;L. Karthikeyan","doi":"10.1002/maco.70126","DOIUrl":"https://doi.org/10.1002/maco.70126","url":null,"abstract":"<div>\u0000 \u0000 <p>This investigation focuses on enhancing the corrosion resistance of Al7075 metal matrix composites through reinforcement with hexagonal boron nitride (h-BN) hard-ceramic particles. Microstructural characterisation was carried out using optical microscopy and scanning electron microscopy (SEM) coupled with energy dispersive X-ray analysis (EDAX). The findings indicate that localised corrosion in the Al7075 matrix originates primarily at the interfaces between the matrix and h-BN particles. A significant improvement in corrosion resistance was observed with increasing reinforcement content, particularly at 9 wt.% h-BN, where the corrosion rate decreased to 2.743 mm/a. Post-solution treatment further reduced the corrosion rate to 0.8169 mm/a, demonstrating its effectiveness in enhancing durability. Overall, the results confirm that solution treatment substantially improves the corrosion resistance of Al7075/9 wt.% h-BN composites. The corrosion behaviour was systematically evaluated using Tafel polarisation in a neutral chloride medium (3.5% NaCl).</p></div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"77 6","pages":"1026-1036"},"PeriodicalIF":2.0,"publicationDate":"2026-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148147252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"77 5","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148066598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"77 5","pages":"860-865"},"PeriodicalIF":2.0,"publicationDate":"2026-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148066599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"77 5","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148065733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"77 5","pages":"682-685"},"PeriodicalIF":2.0,"publicationDate":"2026-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148065734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}