Materials and Corrosion-werkstoffe Und Korrosion最新文献

{"title":"In Vitro Immersion Testing of Mg–0.5Zr–0.5Ca–xZn Alloys in the as-Cast, Homogenized, and Extruded Conditions","authors":"Fereshte Ghorbani,&nbsp;Hamed Mirzadeh,&nbsp;Changiz Dehghanian,&nbsp;Massoud Emamy","doi":"10.1002/maco.12003","DOIUrl":"https://doi.org/10.1002/maco.12003","url":null,"abstract":"<div>\u0000 \u0000 <p>This study investigated the effects of zinc addition, homogenization treatment, and thermomechanical processing via hot extrusion on the microstructure, corrosion behavior, and mechanical properties of biodegradable Mg–0.5Zr–0.5Ca alloy. Zinc alloying not only resulted in the formation of Ca₂Mg₆Zn₃ and Mg₇Zn₃ compounds, but also reduced the grain size up to 4.5 times in the as-cast condition, which improved the mechanical properties. Immersion tests in the simulated body fluid (SBF) solution at 37°C showed that a Zn content higher than 1 wt.% significantly improved corrosion resistance and reduced the corrosion rate to about five times smaller than the base alloy. While the extrusion process induced a remarkable grain refinement via dynamic recrystallization (DRX) and improved the strength-ductility balance, it had a detrimental effect on the corrosion resistance due to the higher volume fraction of the grain boundaries. On the other hand, the homogenization treatment improved the mechanical properties and reduced the weight loss during immersion tests by dissolving secondary phases, increasing the solute Zn content, and formation of hydroxyapatite Ca₁₀(PO₄)₆(OH)₂ film.</p></div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 10","pages":"1538-1547"},"PeriodicalIF":2.0,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145204763","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":"Contents: Materials and Corrosion. 6/2025","authors":"","doi":"10.1002/maco.202570063","DOIUrl":"https://doi.org/10.1002/maco.202570063","url":null,"abstract":"","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 6","pages":"752-755"},"PeriodicalIF":1.6,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.202570063","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144206575","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. 6/2025","authors":"","doi":"10.1002/maco.202570061","DOIUrl":"https://doi.org/10.1002/maco.202570061","url":null,"abstract":"<p><b>Cover:</b></p><p><b>Special issue Off shore Wind</b></p><p>More detailed information can be found in:</p><p>Atmospheric coating deterioration at the supporting steel structure of an off shore wind power transmission platform.</p><p>Copyright Muehlhan Holding GmbH, Hamburg, Germany.\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":"76 6","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.202570061","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144206330","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 the Resistance of Advanced Weathering Steel to Marine Atmospheric Corrosion With the Addition of Al","authors":"Yitong Yan,&nbsp;Zhihua Gong,&nbsp;Tingting Zhai,&nbsp;Xiaoyang Fu,&nbsp;Yapeng Zhang","doi":"10.1002/maco.202414647","DOIUrl":"https://doi.org/10.1002/maco.202414647","url":null,"abstract":"<div>\u0000 \u0000 <p>In this article, dry and wet alternating cycle corrosion scenarios were simulated by accelerated corrosion tests under 1.0 × 10⁻²mol/L NaHSO₃ + 0.1 mol/L NaCl corrosion conditions. Field emission electron microprobe, X-ray diffraction, Raman spectroscopy and electrochemical testing were utilized to study the effect of Al element on the corrosion resistance of weathering steel. Using Materials Studio software, calculate that the addition of Al element will be uniformly distributed in the rust layer with lower binding energy (such as aluminum oxide or doped with other oxides). The synergistic effect of Al and Cr not only produces more stable FeAl₂O₁ in the early stage of corrosion, slowing down the corrosion rate, but also promotes the formation of α−(Fe₁_−xCr_x) OOH and the transformation of γ-FeOOH, refining the grain size of α-FeOOH and enhancing its resistance to external corrosion factors.</p></div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 9","pages":"1268-1279"},"PeriodicalIF":2.0,"publicationDate":"2025-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144934917","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":"The Effect of Stress on the Corrosion Behavior of 7075 Aluminum Alloy After Surface Microporous Copper Plating","authors":"Xiaohong Wang,&nbsp;Peiyao Wang,&nbsp;Xueyan Zhong,&nbsp;Jun Du,&nbsp;Zhenkun Li","doi":"10.1002/maco.202414635","DOIUrl":"https://doi.org/10.1002/maco.202414635","url":null,"abstract":"<div>\u0000 \u0000 <p>Regulating the dissolution performance of soluble fracturing tools based on different actual operating conditions of oil and gas wells is of great significance for ensuring the smooth progress of fracturing processes. In response to the current evaluation of the dissolution rate of soluble downhole tool materials, immersion tests and electrochemical measurements under non-stress conditions are usually used, which cannot accurately predict the dissolution rate of soluble downhole tools under stress. Therefore, this paper evaluated the dissolution rate and maximum pit depth of microporous copper coating samples (CPS) in simulated formation water when the loading stress is 0% σ_s, 50% σ_s and 100% σ_s by using a three-point bending fixture, and its dynamic potential polarization curve (PDP), electrochemical impedance spectroscopy (EIS), and cyclic voltammetry curve (CV) were tested. The results show that the uniform corrosion rate and maximum pit depth of CPS increase with the increase of loading stress. When the loading stress is 100% σ_s, both the uniform corrosion rate and the maximum pit depth increased significantly.</p></div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 9","pages":"1365-1375"},"PeriodicalIF":2.0,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144935302","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":"Methodology for Stress Concentration Analysis in Corrosion Pits Using the Finite Element Method","authors":"Lucas Gonçalves Pinheiro,&nbsp;Marcelo Favaro Borges,&nbsp;Luiz Francisco Rodrigues Venturini,&nbsp;João Júnior Lopês","doi":"10.1002/maco.202414759","DOIUrl":"https://doi.org/10.1002/maco.202414759","url":null,"abstract":"<p>This paper aims to propose a methodology for stress concentration analysis in corrosion pits measured by surface topography techniques, such as interferometry. A filter was proposed to smooth the measured profile of pits, remaining the same aspect ratio (<i>a</i>/2<i>c</i>). There was an increase in the stress concentration factor (<span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 \u0000 <mrow>\u0000 <msub>\u0000 <mi>K</mi>\u0000 \u0000 <mi>t</mi>\u0000 </msub>\u0000 </mrow>\u0000 </mrow>\u0000 </semantics></math>) for discretized pit models compared with ellipsoidal pit models. The increase was already expected, since there is a pronounced effect of secondary pits in the <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 \u0000 <mrow>\u0000 <msub>\u0000 <mi>K</mi>\u0000 \u0000 <mi>t</mi>\u0000 </msub>\u0000 </mrow>\u0000 </mrow>\u0000 </semantics></math>. The effect of the pit surface profile was more pronounced than <i>a</i>/2<i>c</i> in the <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 \u0000 <mrow>\u0000 <msub>\u0000 <mi>K</mi>\u0000 \u0000 <mi>t</mi>\u0000 </msub>\u0000 </mrow>\u0000 </mrow>\u0000 </semantics></math>. The maximum stress was at the maximum pit depth, or it was dislocated to secondary pits, depending on the pit geometry. The <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 \u0000 <mrow>\u0000 <msub>\u0000 <mi>K</mi>\u0000 \u0000 <mi>t</mi>\u0000 </msub>\u0000 </mrow>\u0000 </mrow>\u0000 </semantics></math> for measured pits is possibly even greater, considering the real pit profiles.</p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 10","pages":"1453-1460"},"PeriodicalIF":2.0,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.202414759","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145204845","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. 5/2025","authors":"","doi":"10.1002/maco.202570052","DOIUrl":"https://doi.org/10.1002/maco.202570052","url":null,"abstract":"","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 5","pages":"615"},"PeriodicalIF":1.6,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.202570052","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143909238","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. 5/2025","authors":"Yiqi Zhou,&nbsp;Xiaochang Xu,&nbsp;Shuoyang Wang,&nbsp;Decheng Kong,&nbsp;Fan Zhang,&nbsp;Lili Li,&nbsp;Tingting Liu,&nbsp;Xiaogang Li,&nbsp;Xuanhui Qu,&nbsp;Yu Yan,&nbsp;Chaofang Dong","doi":"10.1002/maco.202570051","DOIUrl":"https://doi.org/10.1002/maco.202570051","url":null,"abstract":"<p><b>Cover:</b></p><p>The figure gives the different pitting corrosion appearance on the bipolar electrode (BPE) after annealing at 600 °C. In (a), all pits are spherical in shape, with some grains being seen, highlighted as the blue arrow. The distribution of these grains stays on a line marked as a yellow dashed line. A high-magnification SEM of these grains is displayed in (b). The grain surface is relatively clean with some holes, which means less corrosion. Figure (c) points out that the gap between the grains is large. In Figure (d), grains with smooth surfaces and similar heights are obtained at a lower applied potential, so the corrosion is concentrated at the grain boundary, which is the intergranular corrosion.</p><p>More detailed information can be found in:</p><p><i>Yiqi Zhou, Xiaochang Xu, Shuoyang Wang, Decheng Kong, Fan Zhang, Lili Li, Tingting Liu, Xiaogang Li, Xuanhui Qu, Yu Yan, Chaofang Dong</i>, Optimize the corrosion and mechanical performance of additive manufactured nano-size WC reinforced stainless steel matrix composites by heat treatments, <i>Materials and Corrosion</i> <b>2025</b>, <i>76</i>, 620.\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":"76 5","pages":"613"},"PeriodicalIF":1.6,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.202570051","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143909421","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. 5/2025","authors":"","doi":"10.1002/maco.202570053","DOIUrl":"https://doi.org/10.1002/maco.202570053","url":null,"abstract":"","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 5","pages":"616-618"},"PeriodicalIF":1.6,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.202570053","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143909429","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":"The Influence of Subcritical Annealing and Cold Working on the Hydrogen Embrittlement Susceptibility of X65 D Pipeline Steel","authors":"Joshua Hoschke,&nbsp;Md Fahdul Wahab Chowdhury,&nbsp;Maximilian Roethig,&nbsp;Clotario V. Tapia-Bastidas,&nbsp;Jeffrey Venezuela,&nbsp;Yilei Shu,&nbsp;Evan Gray,&nbsp;Milos B. Djukic,&nbsp;Tom Depover,&nbsp;Kim Verbeken,&nbsp;Andrej Atrens","doi":"10.1002/maco.202514934","DOIUrl":"https://doi.org/10.1002/maco.202514934","url":null,"abstract":"<p>This study investigated the effect of subcritical heat treatment and cold work on the hydrogen embrittlement (HE) susceptibility of the X65 D pipeline steel, representative of the Dampier-Bunbury Natural Gas Pipeline (DBNGP). Specimens were subjected to sub-critical annealing at 200°C, 400°C, or 600°C for 2 h or cold drawn to 5% reduction in area. Linearly increasing stress tests (LISTs) indicated subcritical annealing reduced strength and increased ductility, while cold working increased strength and decreased ductility. Hydrogen charging reduced the ductility of all specimens. Both subcritical annealing and cold working decreased somewhat the degree of HE. This was attributed to both treatments stabilising the dislocation distribution which possibly reduced the severity of hydrogen-enhanced localised plasticity (HELP). The novelty of this study lies in the evaluation of practical production changes and their influence on the HE of this steel.</p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 10","pages":"1478-1496"},"PeriodicalIF":2.0,"publicationDate":"2025-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.202514934","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145204823","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}