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Contents: Materials and Corrosion. 7/2024 内容：材料与腐蚀。7/2024
IF 1.6 4区 材料科学
Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-07-04 DOI: 10.1002/maco.202470073
{"title":"Contents: Materials and Corrosion. 7/2024","authors":"","doi":"10.1002/maco.202470073","DOIUrl":"https://doi.org/10.1002/maco.202470073","url":null,"abstract":"","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"75 7","pages":"826-829"},"PeriodicalIF":1.6,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.202470073","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141556673","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
Cover Picture: Materials and Corrosion. 7/2024 封面图片：材料与腐蚀7/2024
IF 1.6 4区 材料科学
Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-07-04 DOI: 10.1002/maco.202470071
Grzegorz Smola, Richard Gawel, Zbigniew Grzesik
{"title":"Cover Picture: Materials and Corrosion. 7/2024","authors":"Grzegorz Smola,&nbsp;Richard Gawel,&nbsp;Zbigniew Grzesik","doi":"10.1002/maco.202470071","DOIUrl":"https://doi.org/10.1002/maco.202470071","url":null,"abstract":"<p><b>Cover:</b></p><p>A multi-layered microstructure of the sulfide scale formed on Al<sub>20</sub>Co<sub>25</sub>Cr<sub>25</sub>Ni<sub>25</sub>Si<sub>5</sub> high entropy alloy at 900°C and 1 kPa of sulfur partial pressure (a), and corresponding EDS maps of elements distribution in the outer, compact part of the sulfide scale (b).</p><p>More detailed information can be found in: <i>Grzegorz Smola, Richard Gawel, Zbigniew Grzesik</i>, Sulfidation behavior of an AlCoCrNiSi high entropy alloy, <i>Materials and Corrosion</i> <b>2024</b>, <i>75</i>, 830.\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 7","pages":"823"},"PeriodicalIF":1.6,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.202470071","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141556671","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
Masthead: Materials and Corrosion. 7/2024 刊头：材料与腐蚀7/2024
IF 1.6 4区 材料科学
Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-07-04 DOI: 10.1002/maco.202470072
{"title":"Masthead: Materials and Corrosion. 7/2024","authors":"","doi":"10.1002/maco.202470072","DOIUrl":"https://doi.org/10.1002/maco.202470072","url":null,"abstract":"","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"75 7","pages":"825"},"PeriodicalIF":1.6,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.202470072","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141556672","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
RETRACTION: Fabrication of a superhydrophobic surface on al alloy 5052 via combined anodic oxidation and fluorination treatment 返回：通过阳极氧化和氟化联合处理在合金 5052 上制造超疏水表面
IF 1.6 4区 材料科学
Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-06-28 DOI: 10.1002/maco.202470611
{"title":"RETRACTION: Fabrication of a superhydrophobic surface on al alloy 5052 via combined anodic oxidation and fluorination treatment","authors":"","doi":"10.1002/maco.202470611","DOIUrl":"10.1002/maco.202470611","url":null,"abstract":"<p>RETRACTION: Lkhagvaa Telmenbayar, Tumur-Ochir Erdenebat, Minjung, Daejeong Yang, Ramu Adam Gopal, Dongjin Choi Fabrication of a superhydrophobic surface on Al alloy 5052via combined anodic oxidation and fluorination treatment, published in Materials and Corrosion, DOI 10.1002/maco.202012190. The above article, published online on 03 March 2021 in Wiley Online Library (wileyonlinelibrary.com), has been withdrawn by agreement between the journal JPM Regina Hagen, Author Dongjin Choi, and Wiley-VCH. The withdrawal has been agreed upon following that there was a minor problem with the materials authors used and they plan to resubmit after additional experiments. wileyonlinelibrary.com/journal/maco Materials and Corrosion. 2021;1–9.</p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"75 7","pages":"932"},"PeriodicalIF":1.6,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.202470611","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141551814","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
Corrosion studies of SS 316H and Alloy 617 in thermally purified molten NaF-KF-UF4-UF3 salts SS 316H 和合金 617 在热纯化熔融 NaF-KF-UF4-UF3 盐中的腐蚀研究
IF 1.6 4区 材料科学
Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-06-27 DOI: 10.1002/maco.202414299
Qiufeng Yang, Amanda Leong, Jinsuo Zhang
{"title":"Corrosion studies of SS 316H and Alloy 617 in thermally purified molten NaF-KF-UF4-UF3 salts","authors":"Qiufeng Yang,&nbsp;Amanda Leong,&nbsp;Jinsuo Zhang","doi":"10.1002/maco.202414299","DOIUrl":"10.1002/maco.202414299","url":null,"abstract":"<p>The study investigates salt chemistry and corrosion behavior of SS 316H and Alloy 617 in thermally purified molten NaF-KF-UF<sub>4</sub>-UF<sub>3</sub> salts (UF<sub>4</sub>/UF<sub>3</sub> initial ratio 12–14) at 800°C for 120, 72, and 32 h. UF<sub>4</sub>/UF<sub>3</sub> ratio increases after corrosion tests. Cr species concentration in salts keeps increasing. Fe, Co, Ni, and Mo species increase first, then decrease. Cr/Mn oxides are formed along grain boundaries in SS 316H. Cr near the surface of Alloy 617 is completely depleted. A thin layer composed of Fe, Co, Ni, and Mo is observed on the Alloy 617 surface in 72-h and 32-h tests.</p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"75 11","pages":"1438-1462"},"PeriodicalIF":1.6,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141551887","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
Study of effects of rare earth elements on the corrosion behavior of weathering steels under a simulated immersion environment and a real atmospheric environment 研究稀土元素对模拟浸泡环境和真实大气环境下风化钢腐蚀行为的影响
IF 1.6 4区 材料科学
Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-06-18 DOI: 10.1002/maco.202414447
Zengwei Fan, Zhong Xi, Tengshi Liu, Xintong Lian, Xicheng Wei, Han Dong
{"title":"Study of effects of rare earth elements on the corrosion behavior of weathering steels under a simulated immersion environment and a real atmospheric environment","authors":"Zengwei Fan,&nbsp;Zhong Xi,&nbsp;Tengshi Liu,&nbsp;Xintong Lian,&nbsp;Xicheng Wei,&nbsp;Han Dong","doi":"10.1002/maco.202414447","DOIUrl":"https://doi.org/10.1002/maco.202414447","url":null,"abstract":"<p>The effects of rare earth elements (REEs) on the corrosion behavior of weathering steels under a simulated immersion environment and a real atmospheric environment have been investigated in this paper. Although the corrosion rate of the indoor accelerated corrosion experiment (0.01 mol/L NaHSO<sub>3</sub>) is much higher than that of the real atmospheric exposure experiment, the addition of REEs can highly improve the corrosion resistance of test steels under both conditions. The improvement of the corrosion resistance can be attributed to the quick transformation of γ-FeOOH into α-FeOOH and the accelerated formation of a stable rust layer by REEs. Furthermore, the segregation of the REE inner rust layer increases the density of the rust layer and prevents corrosive particles from eroding the matrix. REEs can also promote the segregation of Cu, Cr, and other alloying elements in the rust layer, thus blocking the cracks and holes and enabling the formation of a continuous rust layer with good adhesion.</p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"75 11","pages":"1539-1548"},"PeriodicalIF":1.6,"publicationDate":"2024-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595666","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
Hot corrosion Type I of novel Co-based γ/γ′ superalloys with and without Al- and Cr-diffusion coatings 具有和不具有铝和铬扩散涂层的新型 Co 基 γ/γ′ 超合金的热腐蚀类型 I
IF 1.6 4区 材料科学
Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-06-18 DOI: 10.1002/maco.202414351
Till König, Sebastian P. Hagen, Sannakaisa Virtanen, Mathias C. Galetz
{"title":"Hot corrosion Type I of novel Co-based γ/γ′ superalloys with and without Al- and Cr-diffusion coatings","authors":"Till König,&nbsp;Sebastian P. Hagen,&nbsp;Sannakaisa Virtanen,&nbsp;Mathias C. Galetz","doi":"10.1002/maco.202414351","DOIUrl":"https://doi.org/10.1002/maco.202414351","url":null,"abstract":"<p>Co-based γ/γ′ superalloys are in development as candidates to replace Ni-based superalloys in turbine engines, where they will be exposed to hot corrosion. The present study investigates the resistance to high temperature Type I hot corrosion of four alloys of the Co–Ni–Al–W system, which differed in their Co to Ni ratio and their W content. In addition, the alloys are tested not only uncoated but also with an Al and a Cr diffusion coating. The exposures were performed at 950°C with a Na<sub>2</sub>SO<sub>4</sub> deposit of 2.5 mg/cm<sup>2</sup> in air containing 0.1% SO<sub>2</sub> for 100 and 300 h. The degradation was investigated by material loss measurements. Both coatings proved mostly protective for 100 h, while the uncoated samples were severely degraded. After the longer exposure time, only the Cr-coating remained partially protective and outmatched the Al-coating. Further, a positive influence was attributed to a higher Co to Ni ratio (1.4 vs. 0.7) and a higher W content (5 vs. 3 at%).</p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"75 12","pages":"1583-1599"},"PeriodicalIF":1.6,"publicationDate":"2024-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.202414351","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142868710","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
Sulfide stress corrosion (SSC) susceptibilities of duplex stainless steels 2205 produced by powder metallurgy (HIP) and hot rolling 粉末冶金（HIP）和热轧生产的双相不锈钢 2205 的硫化物应力腐蚀（SSC）敏感性
IF 1.6 4区 材料科学
Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-06-16 DOI: 10.1002/maco.202414418
T. S. Barros, S. S. M. Tavares, A. R. Pimenta, R. T. Batista, J. A. C. Velasco
{"title":"Sulfide stress corrosion (SSC) susceptibilities of duplex stainless steels 2205 produced by powder metallurgy (HIP) and hot rolling","authors":"T. S. Barros,&nbsp;S. S. M. Tavares,&nbsp;A. R. Pimenta,&nbsp;R. T. Batista,&nbsp;J. A. C. Velasco","doi":"10.1002/maco.202414418","DOIUrl":"https://doi.org/10.1002/maco.202414418","url":null,"abstract":"<p>Owing to their excellent properties, duplex stainless steels (DSSs) may be selected for the H<sub>2</sub>S environment. Operational limits are not defined and depend on fabrication processes. In this work, the susceptibilities of two DSSs 2205 to sulfide stress corrosion (SSC) in saline solutions with three pH levels were investigated. The difference between materials is the fabrication route: hot rolled (HR) tubes and powder metallurgy with compacting and sintering final operations by hot isostatic pressing (PM-HIP). The susceptibility parameters were evaluated by slow strain rate tensile tests (SSRT). Both materials suffered embrittlement in solutions with pH 3.5 and 4.5, but the susceptibility was slightly better in the HR. In the solution with pH 5.5, the HR fractured with ductile behavior, while the PM-HIP was brittle. The better resistance of HR to SSC can be explained by microstructural features, such as the lower grain size and austenite island interspace.</p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"75 11","pages":"1528-1538"},"PeriodicalIF":1.6,"publicationDate":"2024-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142596270","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
Corrosion and degradation behavior of bent aluminum and copper pipes for practical use in air conditioning 空调中实际使用的弯曲铝管和铜管的腐蚀和降解行为
IF 1.6 4区 材料科学
Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-06-12 DOI: 10.1002/maco.202414453
Seiji Uchiyama, Satoshi Uemura, Takeharu Hayashi, Yuji Kimura, Shiro Seki
{"title":"Corrosion and degradation behavior of bent aluminum and copper pipes for practical use in air conditioning","authors":"Seiji Uchiyama,&nbsp;Satoshi Uemura,&nbsp;Takeharu Hayashi,&nbsp;Yuji Kimura,&nbsp;Shiro Seki","doi":"10.1002/maco.202414453","DOIUrl":"10.1002/maco.202414453","url":null,"abstract":"<p>Although copper (Cu) pipes are widely used in refrigerant piping owing to their high thermal conductivity and weathering resistance, there are concerns regarding the increasing price and limited supply of Cu. Consequently, our focus has shifted to aluminum (Al), which is relatively abundant and inexpensive, to investigate its application in refrigerant piping. We previously examined corrosion factors on both the internal and external surfaces of straight piping and conducted accelerated degradation tests, showing that Al has a durability comparable to that of Cu. However, bending sections are always used in addition to straight pipes, and bending induces tensile stress on the outer side of the bending curvature and compressive stress on the inner side. Notably, stress corrosion cracking may occur under tensile stress in corrosive environments. Herein, we investigate the mechanical, electrochemical, and weather resistance properties of bent Al and Cu pipes to evaluate the practicality of Al refrigerant piping.</p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"75 11","pages":"1484-1494"},"PeriodicalIF":1.6,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141352896","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
Quantifying intergranular corrosion susceptibility in AA2098-T351 weldments through friction stir welding 通过搅拌摩擦焊量化 AA2098-T351 焊件的晶间腐蚀敏感性
IF 1.6 4区 材料科学
Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-06-10 DOI: 10.1002/maco.202314245
Mariana X. Milagre, Uyime Donatus, Naga V. Mogili, Caruline S. C. Machado, João Victor. S. Araujo, Rejane Maria P. Silva, Renato A. Antunes, Sajid Farooq, Isolda Costa
{"title":"Quantifying intergranular corrosion susceptibility in AA2098-T351 weldments through friction stir welding","authors":"Mariana X. Milagre,&nbsp;Uyime Donatus,&nbsp;Naga V. Mogili,&nbsp;Caruline S. C. Machado,&nbsp;João Victor. S. Araujo,&nbsp;Rejane Maria P. Silva,&nbsp;Renato A. Antunes,&nbsp;Sajid Farooq,&nbsp;Isolda Costa","doi":"10.1002/maco.202314245","DOIUrl":"10.1002/maco.202314245","url":null,"abstract":"<p>In this study, the intergranular corrosion (IGC) susceptibility of AA2098-T351 welds, fabricated through friction stir welding (FSW), was systematically evaluated. The evaluation employed American Society for Testing and Materials (ASTM) G110-92 practice and electrochemical impedance measurements, with comparative analyses against unwelded alloys (BS). The key findings depicted that FSW-induced microstructure changes significantly influenced IGC susceptibility across different zones. Zones affected by FSW presented distinct susceptibilities compared with the base metal (BM). The ASTM G110-92 test effectively differentiated the heat-affected zone (HAZ) into segments with changing corrosion resistances based on welding temperature gradients. Cross-sectional analyses using scanning electron microscopy (SEM) techniques correlated corrosion characteristics with microstructural features identified by transmission electron microscopy (TEM). Overall, FSW-induced microstructural alterations emerged as a predominant factor influencing the varying susceptibilities of different zones to IGC, and electrochemical impedance measurements (EIS) validated the findings from ASTM G110-92 practice.</p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"75 10","pages":"1359-1372"},"PeriodicalIF":1.6,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141364313","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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