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Effect of Fe addition on corrosion behavior of Ni–xFe–5Cr alloys at 570°C in air containing salt vapor 添加铁对 570°C 含盐蒸汽空气中 Ni-xFe-5Cr 合金腐蚀行为的影响
IF 1.6 4区 材料科学
Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-07-28 DOI: 10.1002/maco.202414399
Suzue Yoneda, Takashi Kogin, Eiji Ishikawa, So Murasue, Shigenari Hayashi
{"title":"Effect of Fe addition on corrosion behavior of Ni–xFe–5Cr alloys at 570°C in air containing salt vapor","authors":"Suzue Yoneda,&nbsp;Takashi Kogin,&nbsp;Eiji Ishikawa,&nbsp;So Murasue,&nbsp;Shigenari Hayashi","doi":"10.1002/maco.202414399","DOIUrl":"10.1002/maco.202414399","url":null,"abstract":"<p>The high-temperature corrosion behavior of Ni–<i>x</i>Fe–5Cr alloys (<i>x</i> = 0, 10, or 30 wt.%) was investigated in air containing alkali salt vapor at 570°C to clarify the effect of Fe on the corrosion resistance. Fe addition to Ni–5Cr was found to improve the corrosion resistance under the present conditions. In the case of Ni–5Cr, NiCl<sub>2</sub> was formed beneath the NiO scale during the initial stage of corrosion, and it grew thicker over time and then evaporated. The formation and evaporation of NiCl<sub>2</sub> resulted in a porous scale that underwent spallation resulting in mass loss. In the Fe-containing alloys, (Fe, Ni, Cr)<sub>3</sub>O<sub>4</sub> spinel and Fe<sub>3</sub>O<sub>4</sub> decreased the partial pressures of oxygen and chlorine and thus prevented the generation of NiO and NiCl<sub>2</sub>, leading to superior corrosion resistance compared with Ni–5Cr.</p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"75 12","pages":"1628-1638"},"PeriodicalIF":1.6,"publicationDate":"2024-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141869951","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}
引用次数: 0
Effect of heat treatment on the microstructure, LBE corrosion resistance, and bonding strength of the FeCrAl-based coatings 热处理对铁铬铝基涂层的微观结构、抗 LBE 腐蚀性和结合强度的影响
IF 1.6 4区 材料科学
Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-07-21 DOI: 10.1002/maco.202414331
Wei Zhang, Mingyang Zhou, Huifang Yue, Danmin Peng, Xi Qiu, Jijun Yang
{"title":"Effect of heat treatment on the microstructure, LBE corrosion resistance, and bonding strength of the FeCrAl-based coatings","authors":"Wei Zhang,&nbsp;Mingyang Zhou,&nbsp;Huifang Yue,&nbsp;Danmin Peng,&nbsp;Xi Qiu,&nbsp;Jijun Yang","doi":"10.1002/maco.202414331","DOIUrl":"10.1002/maco.202414331","url":null,"abstract":"<p>The bonding strength and LBE corrosion resistance of the Fe15Cr11Al2Si, Fe15Cr11Al0.5Y, and Fe15Cr11Al2Si0.5Y coatings heat-treated at 500–650°C for 500 h were investigated. The results showed that the as-deposited Fe15Cr11Al0.5Y coating has the strongest bonding strength with the F/M steel cladding tube compared with the Fe15Cr11Al2Si and Fe15Cr11Al2Si0.5Y coatings. Heat treatment deteriorates the bonding performance of the coatings, and obvious enrichment of Cr and Al elements appeared. The consumed Al element inside the heat-treated coatings promotes the formation of Fe<sub>3</sub>O<sub>4</sub> on the surface of the coatings after the corrosion test. The Y element can inhibit the enrichment of elements and the formation of Fe<sub>3</sub>O<sub>4</sub>. The bonding strength of the heat-treated coatings can be improved after the corrosion test. The underlying mechanism of the evolution of microstructure and properties of the coatings after heat treatment and corrosion test was discussed.</p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"75 11","pages":"1406-1428"},"PeriodicalIF":1.6,"publicationDate":"2024-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141784164","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}
引用次数: 0
Archaeological analogues for the lifetime prediction of the canister for spent nuclear fuel in the deep geological repository: Part I. Composition of pore water and corrosion products 用于预测深层地质处置库乏核燃料罐寿命的考古类比：第一部分：孔隙水和腐蚀产物的成分
IF 1.6 4区 材料科学
Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-07-21 DOI: 10.1002/maco.202414516
Kateřina Kolomá, Václava Havlová, Anna Pecková, Šárka Šachlová, Vlastislav Kašpar, Diana Tkachenok, Alžběta Danielisová, Drahomíra Malyková, Helena Březinová, Ludmila Barčáková, Saqib Mukhtar, Richard Bureš, Jan Stoulil
{"title":"Archaeological analogues for the lifetime prediction of the canister for spent nuclear fuel in the deep geological repository: Part I. Composition of pore water and corrosion products","authors":"Kateřina Kolomá,&nbsp;Václava Havlová,&nbsp;Anna Pecková,&nbsp;Šárka Šachlová,&nbsp;Vlastislav Kašpar,&nbsp;Diana Tkachenok,&nbsp;Alžběta Danielisová,&nbsp;Drahomíra Malyková,&nbsp;Helena Březinová,&nbsp;Ludmila Barčáková,&nbsp;Saqib Mukhtar,&nbsp;Richard Bureš,&nbsp;Jan Stoulil","doi":"10.1002/maco.202414516","DOIUrl":"10.1002/maco.202414516","url":null,"abstract":"<p>This work focuses on archaeological analogues as a way of obtaining long-term data for assessing the lifetime of a spent nuclear fuel canister. An analysis of the environment around the excavated artefacts is presented, followed by geochemical modelling of the likely corrosion products and subsequent comparison with real phases in the corrosion layer estimated by X-ray diffraction. A total of 16 archaeological sites with fine clay soils and the potential for long-term flooding were evaluated. Although the soil pore solution contained high levels of silicates, no such phases with iron in the corrosion products were confirmed. Carbonate corrosion products, typical of bentonite environments, were also not observed. Although oxygen access is very limited in the environments of all sites, even low concentrations shifted the equilibrium of corrosion products formed in favour of (hydroxy)oxides.</p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 1","pages":"137-154"},"PeriodicalIF":1.6,"publicationDate":"2024-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141784166","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}
引用次数: 0
Preparation and characterisation of black conversion coating of Cr(NO3)3–CoCl2–NiCl2 of Zn–Ni alloy electroplated on 2024 aluminium alloy surface 在 2024 铝合金表面电镀 Zn-Ni 合金的 Cr(NO3)3-CoCl2-NiCl2 黑色转化镀层的制备与表征
IF 1.6 4区 材料科学
Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-07-19 DOI: 10.1002/maco.202414414
Tingyi Chen, Qiming Huang, Hongtao Zhu, Yaqi Ma
{"title":"Preparation and characterisation of black conversion coating of Cr(NO3)3–CoCl2–NiCl2 of Zn–Ni alloy electroplated on 2024 aluminium alloy surface","authors":"Tingyi Chen,&nbsp;Qiming Huang,&nbsp;Hongtao Zhu,&nbsp;Yaqi Ma","doi":"10.1002/maco.202414414","DOIUrl":"10.1002/maco.202414414","url":null,"abstract":"<p>To meet the application requirements of electronic connectors, a trivalent chromium process (TCP) conversion coating was prepared on the Zn–Ni alloy plating of 2024 aluminium alloy. The composition of the TCP solution was as follows: 45 g/L Cr(NO<sub>3</sub>)<sub>3</sub>, 14 g/L CoCl<sub>2</sub>, 1.3 g/L NiCl<sub>2</sub>, 10 g/L citric acid, 10 g/L succinic acid and 1 g/L sodium dodecyl sulphate. The properties of TCP were characterised by a range of techniques, including macroscopic observations, scanning electron microscope, energy-dispersive X-ray spectrometer, three-dimensional (3D) morphometry, electrochemical impedance spectroscopy, polarisation curves and conductivity tests. The TCP prepared in this experiment exhibits a uniform black colour and bright appearance, predominantly composed of Zn, Ni, O, Cr and Co. The TCP enhances the impedance of Zn–Ni alloys, reduces the corrosion current to 1.99 × 10<sup>−5 </sup>A/cm<sup>2</sup> and maintains a flatter surface 3D morphology and less surface roughness following electrochemical testing. It has better corrosion resistance. Following the preparation of the TCP on a suitably sized shell sample, the shell resistance was 1.2 mVDC with good electrical conductivity, which meets the requirements for electrical connector applications.</p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"75 11","pages":"1463-1471"},"PeriodicalIF":1.6,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141743157","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}
引用次数: 0
How aluminium additions improve the performance of zinc-rich organic coatings 铝添加剂如何改善富锌有机涂料的性能
IF 1.6 4区 材料科学
Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-07-19 DOI: 10.1002/maco.202414529
Isehaq Al-Nafai, Katarzyna Rzeszutek, Stuart Lyon, Christopher Jones, Douglas Beaumont
{"title":"How aluminium additions improve the performance of zinc-rich organic coatings","authors":"Isehaq Al-Nafai,&nbsp;Katarzyna Rzeszutek,&nbsp;Stuart Lyon,&nbsp;Christopher Jones,&nbsp;Douglas Beaumont","doi":"10.1002/maco.202414529","DOIUrl":"10.1002/maco.202414529","url":null,"abstract":"<p>Novel sacrificial zinc-rich organic coatings, with varying additions of aluminium, were prepared and tested for anticorrosion performance. Electrochemical measurements (potential vs. time and electrochemical impedance spectroscopy) were carried out to investigate cathodic protection and barrier performance while neutral salt spray and immersion experiments tested long-term performance. Analytical scanning electron microscopy and X-ray diffraction were used to characterize coatings before and after testing. Formulations containing aluminium significantly outperformed the standard 100% zinc-rich coating with the greatest improvement occurring at 10%–15% aluminium by volume in the dry film. This improvement was caused by the dispersal of aluminium between zinc particles, which improved packing and enabled greater efficiency in zinc consumption resulting in extended galvanic protection times for steel substrates. The expected zinc corrosion product (basic zinc chloride, simonkolleite) was present within the coating as well as a Zn–Al layered doubled hydroxide. The latter's presence demonstrates that dissolution of aluminium contributed to the longevity of the galvanic action. The new Zn–Al formulations are extremely promising alternatives to standard zinc-rich epoxy coatings, significantly reducing zinc loading and increasing the sacrificial lifetime.</p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 1","pages":"53-70"},"PeriodicalIF":1.6,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.202414529","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141743162","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}
引用次数: 0
Investigating the corrosion behavior of as-cast Mg-Zn-Ca alloys with the same Zn/Ca atomic ratio by in situ observation 通过原位观测研究具有相同锌/钙原子比的铸态镁锌钙合金的腐蚀行为
IF 1.6 4区 材料科学
Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-07-17 DOI: 10.1002/maco.202414362
Ye Tian, Yixuan Shao, Qianqian Yu, Shilei Guo, Ruofei Dang, Yiming Du, Guanhong Zhu, Shaoyuan Lyu, Minfang Chen
{"title":"Investigating the corrosion behavior of as-cast Mg-Zn-Ca alloys with the same Zn/Ca atomic ratio by in situ observation","authors":"Ye Tian,&nbsp;Yixuan Shao,&nbsp;Qianqian Yu,&nbsp;Shilei Guo,&nbsp;Ruofei Dang,&nbsp;Yiming Du,&nbsp;Guanhong Zhu,&nbsp;Shaoyuan Lyu,&nbsp;Minfang Chen","doi":"10.1002/maco.202414362","DOIUrl":"10.1002/maco.202414362","url":null,"abstract":"<p>The alloying contents with the same Zn/Ca atomic ratio of 0.13 on the corrosion behavior of Mg-Zn-Ca (ZX) alloys were investigated. The second phases in ZX10, ZX20, ZX30, and ZX51 alloys were identical with a majority of Mg<sub>2</sub>Ca and very few Ca<sub>2</sub>Mg<sub>6</sub>Zn<sub>3</sub> and their distribution changed from isolated to continuous state in ZX30 and ZX51. ZX10 had the lowest corrosion rate of 0.55 mm/year after 168 h immersion in simulated body fluid solution due to the smallest number of sites of galvanic corrosion. The corrosion rate of ZX30 alloy was the highest (0.72 mm/year), while though ZX51 alloy had the most Mg<sub>2</sub>Ca, its corrosion rate was reduced to 0.69 mm/year, resulting from the small size and thin Mg<sub>2</sub>Ca. In situ microstructure observation demonstrated the high fraction Mg<sub>2</sub>Ca phase and continuous Mg<sub>2</sub>Ca with bulky size were the main reason for the fast corrosion rate.</p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"75 11","pages":"1472-1483"},"PeriodicalIF":1.6,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141746155","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}
引用次数: 0
High-temperature oxidation of Cu–Al–Ni–Mn shape-memory alloy 铜-铝-镍-锰形状记忆合金的高温氧化
IF 1.6 4区 材料科学
Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-07-16 DOI: 10.1002/maco.202414438
Edelize Angélica Gomes, Renato Altobelli Antunes, Eric Marchezini Mazzer, Vanessa de Freitas Cunha Lins
{"title":"High-temperature oxidation of Cu–Al–Ni–Mn shape-memory alloy","authors":"Edelize Angélica Gomes,&nbsp;Renato Altobelli Antunes,&nbsp;Eric Marchezini Mazzer,&nbsp;Vanessa de Freitas Cunha Lins","doi":"10.1002/maco.202414438","DOIUrl":"10.1002/maco.202414438","url":null,"abstract":"<p>The isothermal oxidation behavior of the Cu-11.35Al-3.2Ni-3.5Mn (wt.%) shape-memory alloy (SMA) in the temperature range of 500–900°C in oxygen was studied using the thermogravimetric (TG) method. TG curve showed that the alloy has parabolic isothermal oxidation characteristics. The effect of oxidation on the surface morphology and chemical composition of the Cu–Al–Ni–Mn alloy was determined by scanning electron microscopy, energy-dispersive spectroscopy, and X-ray photoelectron spectroscopy (XPS) analyses. The oxidation rate of SMA increases up to 700°C, remains stable at 800°C, and increases again up to 900°C. The XPS analysis identified that the corrosion products mainly contained MnO<sub>2</sub>, MnO/Mn<sub>2</sub>O<sub>3</sub>, and Al<sub>2</sub>O<sub>3</sub>.</p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"75 11","pages":"1429-1437"},"PeriodicalIF":1.6,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141743158","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}
引用次数: 0
Influence of mechanical grinding on the formation of native passive layers on aluminum alloys 机械研磨对铝合金原生被动层形成的影响
IF 1.6 4区 材料科学
Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-07-16 DOI: 10.1002/maco.202414503
Michael Schneider, Ulrike Langklotz, Laurence Kühne, Claudia Kutzer-Schulze
{"title":"Influence of mechanical grinding on the formation of native passive layers on aluminum alloys","authors":"Michael Schneider,&nbsp;Ulrike Langklotz,&nbsp;Laurence Kühne,&nbsp;Claudia Kutzer-Schulze","doi":"10.1002/maco.202414503","DOIUrl":"10.1002/maco.202414503","url":null,"abstract":"<p>Mechanical grinding creates mechanical as well as thermal stress in treated material and the so-called Beilby layer is formed. The present work investigates the influence of abrasive coarse grain size on the thickness and electrochemical behavior of the native oxide layer formed after the grinding process by using cyclovoltammetry. The difference in the native oxide layer thickness amounts to Δ<i>d</i> ≈ 0.5 nm under the surface conditions investigated. Additionally, an experimental design is introduced and tested, which allows the <i>operando</i> measuring of the temperature of the material during the grinding process. Estimates result in a thermal stress Δ<i>σ</i> between 0.8 and 1.3 MPa depending on the chosen grinding parameters and influence the subsequently formed oxide layer thickness.</p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 1","pages":"43-52"},"PeriodicalIF":1.6,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.202414503","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141743160","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}
引用次数: 0
Accelerated microbiologically influenced corrosion of copper by sulfate-reducing bacterium Desulfovibrio desulfovibrio 受硫酸盐还原菌脱硫弧菌影响的微生物对铜的加速腐蚀
IF 1.6 4区 材料科学
Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-07-16 DOI: 10.1002/maco.202414451
Lijuan Chen, Jialin Li, Bo Wei, Jin Xu, Cheng Sun
{"title":"Accelerated microbiologically influenced corrosion of copper by sulfate-reducing bacterium Desulfovibrio desulfovibrio","authors":"Lijuan Chen,&nbsp;Jialin Li,&nbsp;Bo Wei,&nbsp;Jin Xu,&nbsp;Cheng Sun","doi":"10.1002/maco.202414451","DOIUrl":"10.1002/maco.202414451","url":null,"abstract":"<p>The corrosion behavior and electrochemical damage mechanisms induced by sulfate-reducing bacteria (SRB) on copper (Cu) were investigated in this study. Electrochemical impedance spectroscopy revealed that SRB accelerated the corrosion of Cu, albeit with a mitigating effect observed due to the formation of a protective and dense biofilm. However, upon the rupture of this protective film, the corrosion tendency of Cu significantly increased. Surface analysis corroborated these findings, with the predominant corrosion product identified as Cu2S, a result further supported by thermodynamic calculations. The accelerated corrosion of Cu was primarily attributed to the physiological metabolism of SRB, which generates hydrogen sulfide as the principal agent driving corrosion processes.</p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"75 11","pages":"1495-1505"},"PeriodicalIF":1.6,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141743159","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}
引用次数: 0
Archeological analogs for the lifetime prediction of the canister for spent nuclear fuel in the deep geological repository: Part II. Evolution of the corrosion rate over time 用于预测深层地质贮存库乏核燃料罐寿命的考古模拟：第二部分.腐蚀率随时间的变化
IF 1.6 4区 材料科学
Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-07-15 DOI: 10.1002/maco.202414521
Saqib Mukhtar, Richard Bureš, Miloslav Lhotka, Alžběta Danielisová, Drahomíra Malyková, Helena Březinová, Ludmila Barčáková, Šárka Šachlová, Vlastislav Kašpar, Václava Havlová, Jiří Němeček, Jan Stoulil
{"title":"Archeological analogs for the lifetime prediction of the canister for spent nuclear fuel in the deep geological repository: Part II. Evolution of the corrosion rate over time","authors":"Saqib Mukhtar,&nbsp;Richard Bureš,&nbsp;Miloslav Lhotka,&nbsp;Alžběta Danielisová,&nbsp;Drahomíra Malyková,&nbsp;Helena Březinová,&nbsp;Ludmila Barčáková,&nbsp;Šárka Šachlová,&nbsp;Vlastislav Kašpar,&nbsp;Václava Havlová,&nbsp;Jiří Němeček,&nbsp;Jan Stoulil","doi":"10.1002/maco.202414521","DOIUrl":"10.1002/maco.202414521","url":null,"abstract":"<p>This work focused on evaluating the evolution of the corrosion product layer and associated corrosion rates on archeological artifacts from 16 sites. Sites with clay soils and maximum waterlogging (pond bottoms and wetlands) were monitored. The corrosion products were evaluated by X-ray imaging, X-ray diffraction, scanning electron microscope, Brunauer–Emmett–Teller, and nanoindentation. Two stages of corrosion attack with slightly different mechanisms were observed. Corrosion rates observed at sites with continuous flooding show average corrosion rates of 0.4–1 μm.a<sup>−1</sup>. These values demonstrate a minimum service life of the container outer case of 15 × 10<sup>3</sup> years, which is several times longer than the required lifetime of the outer case.</p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 1","pages":"155-163"},"PeriodicalIF":1.6,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141645941","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}
引用次数: 0
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