Materials and Corrosion-werkstoffe Und Korrosion最新文献

{"title":"Corrosion Behavior of Heat-Treated Fe-Based Shape Memory Alloys","authors":"Pranav Vivek Kulkarni,&nbsp;Meet Jaydeepkumar Oza,&nbsp;Anna Igual-Munoz,&nbsp;Jean-Michel Sallese,&nbsp;Moslem Shahverdi,&nbsp;Christian Leinenbach,&nbsp;Stefano Mischler","doi":"10.1002/maco.202414562","DOIUrl":"10.1002/maco.202414562","url":null,"abstract":"<p>The influence of various heat treatments on the corrosion behavior of a novel iron-based shape memory alloy (Fe-SMA), Fe-17Mn-6Si-10Cr-4Ni-1(V,C), used as prestressing elements in civil engineering was examined through electrochemical corrosion methods. SMAs were subjected to two different electrolytes: saturated Ca(OH)₂ solutions with and without chlorides to mimic the conditions in concrete. Two specific heat treatments were applied to the Fe-SMA, which resulted in a change in grain size and precipitation of secondary phases. Furthermore, conventional structural steel, B500B, was utilized as a reference material. The results reveal that the heat treatments did not significantly change the corrosion rates of these alloys in Ca(OH)₂ solution compared to B500B when chlorides were absent. However, the presence of chloride ions suppressed the passivity of B500B and promoted the localized corrosion (pitting and intergranular) of the Fe-SMAs, among which the solutionized alloy showed significantly higher resistance to the pitting. It was demonstrated that the heat treatments and, consequently, microstructural characteristics influence the pitting behavior of these alloys.</p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 1","pages":"10-19"},"PeriodicalIF":1.6,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.202414562","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142180249","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":"Corrosion Behavior and Evaluation Method of Pipeline Steel Under Dynamic AC Interference: A Study","authors":"Le Chen,&nbsp;Yanxia Du,&nbsp;Lei Guo,&nbsp;Zhenhong Zhu,&nbsp;Yi Liang,&nbsp;Lei Zhang","doi":"10.1002/maco.202414607","DOIUrl":"10.1002/maco.202414607","url":null,"abstract":"<div>\u0000 \u0000 <p>Unlike the stable AC interference caused by AC transmission lines to buried pipelines, high-speed railways cause dynamic AC interference to nearby buried pipelines. The dynamic fluctuation characteristics of AC interference parameters of buried pipelines near high-speed railways with different traction power supply modes were obtained through the statistical analysis of field test data. The dynamic AC corrosion simulation experiments were conducted with different interference cycles and levels, as well as cathodic protection (CP) levels. The results show that the dynamic AC corrosion rate increases with the extension of the interference time within each interference cycle. After the <i>J</i>_AC ≥ 100 A/m², the dynamic AC corrosion rate shows a three-stage change with a negative shift of CP potential, that is, first decreasing, then increasing, and then decreasing again. On the basis of the experimental results, the dynamic AC corrosion risk assessment criteria were proposed, which comprehensively considers the CP level and the proportion of interference time with different AC current densities.</p></div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 2","pages":"305-315"},"PeriodicalIF":1.6,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142180247","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":"Corrosion Behavior of Aluminum in Fossil Diesel Fuel and Biodiesel From Chicken Eggshell-Alumina-Catalyzed Waste Cooking Oil","authors":"Lekan Taofeek Popoola,&nbsp;Alfred Ogbodo Agbo,&nbsp;Usman Taura,&nbsp;Adeyinka Sikiru Yusuff,&nbsp;Yuli Panca Asmara,&nbsp;Olusegun A. Olagunju,&nbsp;Onyemaechi Melford Chima","doi":"10.1002/maco.202414510","DOIUrl":"10.1002/maco.202414510","url":null,"abstract":"<p>To curb environmental pollution emanating from the exhausts of engines using fossil diesel fuel (DF), studies on the use of biodiesel from renewable energy source are ongoing. However, engine components have been observed to corrode easily in biodiesels. In this study, a comparative study of the corrosion rate of aluminum coupon (AC) in biodiesel from waste cooking oil over chicken eggshell-supported alumina catalyst (WCOB) and fossil DF was executed. Weight loss method was used to examine the corrosion rate. Highest corrosion rates of 0.0381 and 0.0052 mm year⁻¹ were recorded for AC in WCOB and DF, respectively. The developed mathematical models proved effective for corrosion rate prediction. At optimum prediction, the minimum corrosion rates for the AC in WCOB and DF were 1.822 × 10⁻³ and 1.222 × 10⁻³ mm year, respectively. Characterization revealed pits formation and presence of oxygen and carbon on AC surface with loss of Al ions from the AC surface into WCOB and DF after corrosion. In conclusion, all results revealed high corrosion rates of AC in WCOB than DF.</p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 1","pages":"122-136"},"PeriodicalIF":1.6,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.202414510","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142180256","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":"Cover Picture: Materials and Corrosion. 9/2024","authors":"Bin Xie,&nbsp;Hongwei Shi,&nbsp;Yingwei Song,&nbsp;En-Hou Han","doi":"10.1002/maco.202470091","DOIUrl":"https://doi.org/10.1002/maco.202470091","url":null,"abstract":"<p><b>Cover:</b></p><p>The morphology (SEM image) of the urea-formaldehyde-alkyd resin microcapsules. The microcapsules were regularly globular in shape.</p><p>More detailed information can be found in: <i>Bin Xie, Hongwei Shi, Yingwei Song, En-Hou Han</i>, Self-healing polyurethane anticorrosive coatings based on alkyd resin microcapsules, <i>Materials and Corrosion</i> <b>2024</b>, <i>75</i>, 1090.\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":"75 9","pages":"1083"},"PeriodicalIF":1.6,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.202470091","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142123298","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":"Masthead: Materials and Corrosion. 9/2024","authors":"","doi":"10.1002/maco.202470092","DOIUrl":"https://doi.org/10.1002/maco.202470092","url":null,"abstract":"","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"75 9","pages":"1085"},"PeriodicalIF":1.6,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.202470092","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142123299","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":"Contents: Materials and Corrosion. 9/2024","authors":"","doi":"10.1002/maco.202470093","DOIUrl":"https://doi.org/10.1002/maco.202470093","url":null,"abstract":"","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"75 9","pages":"1086-1089"},"PeriodicalIF":1.6,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.202470093","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142123132","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":"Hot corrosion behavior of Mo–Si–Ti alloys","authors":"Katharina Beck,&nbsp;Till König,&nbsp;Ekin Senvardarli,&nbsp;Frauke Hinrichs,&nbsp;Martin Heilmaier,&nbsp;Mathias C. Galetz","doi":"10.1002/maco.202414491","DOIUrl":"https://doi.org/10.1002/maco.202414491","url":null,"abstract":"<p>The hot corrosion behavior of two ternary Mo–Si–Ti alloys (eutectic Mo–20.0Si–52.8Ti (at.%) and eutectoid Mo–21.0Si–34.0Ti (at.%)) was investigated at <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 \u0000 <mrow>\u0000 <mn>700</mn>\u0000 \u0000 <mo>°</mo>\u0000 </mrow>\u0000 </mrow>\u0000 <annotation> &lt;math display=\"inline\" altimg=\"urn:x-wiley:09475117:media:maco202414491:maco202414491-math-0001\" xmlns=\"http://www.w3.org/1998/Math/MathML\" wiley:location=\"equation/maco202414491-math-0001.png\"&gt;&lt;mrow&gt;&lt;mrow&gt;&lt;mn&gt;700&lt;/mn&gt;&lt;mo&gt;unicode{x000B0}&lt;/mo&gt;&lt;/mrow&gt;&lt;/mrow&gt;&lt;/math&gt;</annotation>\u0000 </semantics></math>C and <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 \u0000 <mrow>\u0000 <mn>900</mn>\u0000 \u0000 <mo>°</mo>\u0000 </mrow>\u0000 </mrow>\u0000 <annotation> &lt;math display=\"inline\" altimg=\"urn:x-wiley:09475117:media:maco202414491:maco202414491-math-0002\" xmlns=\"http://www.w3.org/1998/Math/MathML\" wiley:location=\"equation/maco202414491-math-0002.png\"&gt;&lt;mrow&gt;&lt;mrow&gt;&lt;mn&gt;900&lt;/mn&gt;&lt;mo&gt;unicode{x000B0}&lt;/mo&gt;&lt;/mrow&gt;&lt;/mrow&gt;&lt;/math&gt;</annotation>\u0000 </semantics></math>C for up to 100 h. Both Mo-based alloys evidenced a hot corrosion attack, resulting in a uniform attack of the substrate surface. The higher Ti content of the eutectic alloy significantly reduced the formation of solid and volatile Mo oxides compared with the eutectoid alloy. After 24 h at <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 \u0000 <mrow>\u0000 <mn>700</mn>\u0000 \u0000 <mo>°</mo>\u0000 </mrow>\u0000 </mrow>\u0000 <annotation> &lt;math display=\"inline\" altimg=\"urn:x-wiley:09475117:media:maco202414491:maco202414491-math-0003\" xmlns=\"http://www.w3.org/1998/Math/MathML\" wiley:location=\"equation/maco202414491-math-0003.png\"&gt;&lt;mrow&gt;&lt;mrow&gt;&lt;mn&gt;700&lt;/mn&gt;&lt;mo&gt;unicode{x000B0}&lt;/mo&gt;&lt;/mrow&gt;&lt;/mrow&gt;&lt;/math&gt;</annotation>\u0000 </semantics></math>C, the corrosion products formed on the eutectic alloy were only one-tenth the thickness of the layers formed on the eutectoid alloy. The corrosion products were examined with optical and electron microscopy. Semiquantitative electron probe micro analysis and X-ray diffraction measurements were used to identify the formed phases. The underlying corrosion mechanisms comprising not only hot corrosion-induced fluxing but also oxidation-induced pesting are discussed in detail.</p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"75 12","pages":"1610-1619"},"PeriodicalIF":1.6,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.202414491","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142868965","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":"Stress corrosion behavior and mechanism of Ti6321 alloy in seawater with different dissolved oxygen concentrations","authors":"Fuyao Hao,&nbsp;Huixia Zhang,&nbsp;Xiangbo Li,&nbsp;Jian Hou,&nbsp;Wenju Li,&nbsp;Yali Xu,&nbsp;Weimin Guo","doi":"10.1002/maco.202414546","DOIUrl":"10.1002/maco.202414546","url":null,"abstract":"<p>The stress corrosion behavior of Ti-6Al-3Nb-2Zr-1Mo (Ti6321, in wt%) alloy in seawater with different dissolved oxygen (DO) concentrations was investigated using X-ray photoelectron spectroscopy, energy dispersive spectrometer, electrochemical measurements, and other advanced methodologies. The results indicate that when the DO concentration in seawater is insufficient, the passivation film will preferentially form on the α-phase surface. Meanwhile, insufficient DO concentration leads to incomplete oxidation of the surface passivation film, resulting in an increase in surface defects. Hydrogen produced by reactions at crack tips is more likely to enter the surface of the titanium alloy through these defects, and under the influence of HEDE and HELP mechanisms, promote crack propagation.</p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 1","pages":"164-174"},"PeriodicalIF":1.6,"publicationDate":"2024-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142180251","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":"Study on corrosion resistance of arc sprayed Zn–xAl (x = 19, 27, and 37) pseudo alloy coatings in salt spray environment","authors":"Min Zhang,&nbsp;Song Wang,&nbsp;Qi Li,&nbsp;Shifeng Liu","doi":"10.1002/maco.202414355","DOIUrl":"10.1002/maco.202414355","url":null,"abstract":"<p>To study the corrosion behavior of Zn–Al pseudo alloy coatings with different Al contents, Zn–<i>x</i>Al (x = 19, 27, and 37) pseudo alloy coatings were prepared by the wire arc spraying technique using Zn and Al wires with different diameters. This study investigated the microstructure, electrochemical corrosion behavior, and corrosion morphology and products of the as-sprayed coatings after the salt spray test in 5 wt% NaCl solution. The results exhibited that the Zn–Al pseudo alloy coatings with higher Al content form denser corrosion products (Zn₅(OH)₈Cl₂·H₂O and Zn–Al layered double hydroxide) with stronger self-shielding effect against corrosive media, thus provide better long-term corrosion protection. Besides, electrochemical reactions are controlled by mass transfer until corrosion for 24 h, and then by a combination of mass transfer and diffusion for 96 h. Overall, it can be concluded that the Zn–37Al pseudo alloy coating in this study shows great potential to protect steel substrates from corrosion.</p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 1","pages":"71-86"},"PeriodicalIF":1.6,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142180268","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":"Exploring the galvanic corrosion behavior of 6061 aluminum alloy: TA1 titanium alloy based on finite element simulation","authors":"Xinyang Li,&nbsp;Junkai Zhang,&nbsp;Lei Li,&nbsp;Wenjia Wang,&nbsp;Guocheng Xu,&nbsp;Zhonglin Hou","doi":"10.1002/maco.202414469","DOIUrl":"10.1002/maco.202414469","url":null,"abstract":"<p>Using polarization curve scanning, electrochemical impedance spectroscopy, macroscopic morphology observation, scanning electron microscope, X-ray diffraction (XRD), and energy dispersive spectroscopy (EDS), the corrosion regulars of connectors were investigated. A galvanic corrosion simulation model of aluminum-titanium rivets was established by electrochemical experimental parameters as boundary conditions. The results showed that the galvanic couple connection accelerated the corrosion significantly. XRD and EDS results show that the main corrosion products are Al₂O_3, Al(OH)₃. The corrosion potential of riveted parts decreased from the riveting point to both sides, ranging from −0.664 to −0.655 V. The corrosion current density decreases along both sides, and the corrosion current density at the most edge is 0.0113 A/m². The results of numerical simulation indicate that the model effectively predicted the galvanic corrosion behavior of aluminum-titanium rivets.</p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 1","pages":"99-111"},"PeriodicalIF":1.6,"publicationDate":"2024-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142180252","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}