Materials and Corrosion-werkstoffe Und Korrosion最新文献_第8页

Electrochemical characterization of surfaces of galvanized steels under different exposure conditions using gel electrolytes 使用凝胶电解质分析不同暴露条件下镀锌钢表面的电化学特性

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-04-17 DOI: 10.1002/maco.202414389

Andreas Heyn, Moritz Meist, Oliver Michael, Martin Babutzka, Svenja Valet, Gino Ebell

引用次数: 0

Corrosion behavior of two Cu-based shape memory alloys in NaCl solution: An electrochemical study 两种铜基形状记忆合金在氯化钠溶液中的腐蚀行为：电化学研究

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-04-15 DOI: 10.1002/maco.202314227

Roberto Spotorno, Elisa Fracchia, Christian Krancher, Romina Krieg, Ralf Theiß, Peter Dültgen, Francesco Marco Pezzana, Federico Simone Gobber, Marco Actis Grande, Paolo Piccardo

{"title":"Corrosion behavior of two Cu-based shape memory alloys in NaCl solution: An electrochemical study","authors":"Roberto Spotorno, Elisa Fracchia, Christian Krancher, Romina Krieg, Ralf Theiß, Peter Dültgen, Francesco Marco Pezzana, Federico Simone Gobber, Marco Actis Grande, Paolo Piccardo","doi":"10.1002/maco.202314227","DOIUrl":"10.1002/maco.202314227","url":null,"abstract":"The corrosion behavior of two different Cu–Al–Mn–Ni alloys, pseudoelastic and pseudoplastic, was studied in a 0.6 M sodium chloride aqueous solution by monitoring the open circuit potential for 100 h and characterizing the resulting corrosion products. Electrochemical impedance spectroscopy analysis detected three processes related to the electrochemical double layer, a passive film and a diffusive contribution associated with the dissolution/precipitation of corrosion products. Potentiodynamic scans revealed a cathodically controlled corrosion mechanism and the presence of active–passive behavior at anodic potentials for both alloys studied. Polarization of the samples at selected potentials in the anodic branch allowed the investigation of the reactions involved, highlighting an improved corrosion resistance of the pseudoelastic alloy. The corrosion rates of the pseudoelastic and pseudoplastic alloys, after 100 h of immersion, were determined to be 0.007 and 0.011 mmpy, respectively. The post-experiment characterization was carried out by means of scanning electron microscopy, micro-Raman spectroscopy and X-ray diffraction, supporting the electrochemical results.","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"75 9","pages":"1155-1172"},"PeriodicalIF":1.6,"publicationDate":"2024-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140578519","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 carburization of Ni3Al-based superalloys in high-temperature carbon dioxide 高温二氧化碳中 Ni3Al 基超合金的腐蚀和渗碳现象

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-04-15 DOI: 10.1002/maco.202414357

Hexin Zhang, Yanwen Sun, Yihan Zhao, Youshui Xie, Xiaopeng Li, Yuqi Wang, Chengzhi Zhao

{"title":"Corrosion and carburization of Ni3Al-based superalloys in high-temperature carbon dioxide","authors":"Hexin Zhang, Yanwen Sun, Yihan Zhao, Youshui Xie, Xiaopeng Li, Yuqi Wang, Chengzhi Zhao","doi":"10.1002/maco.202414357","DOIUrl":"10.1002/maco.202414357","url":null,"abstract":"To investigate the application of Ni3Al-based superalloys in gas turbine cycle systems, this experiment exposed Ni3Al-based superalloys to a 600°C/5 MPa environment with 99.995% pure CO2 gas. The corrosion and carburization behaviors and mechanisms were investigated in detail. The results reveal that with prolonged thermal exposure, the surface oxides of the samples tend to develop a continuous and homogeneous transition state alumina layer. This layer serves as a protective barrier, preventing the penetration and corrosion of external carbon-containing and oxygen-containing substances into the matrix. A small amount of carbon-containing hazardous substances still penetrates the oxide layer or grain boundaries through highly diffusive pathways such as nanochannels, pores, and cracks, because the transition state of alumina is not completely dense. This leads to carbon deposition at the interface between the oxide layer and the matrix, where a mixture of alumina and amorphous carbon is formed at the interface.","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"75 9","pages":"1228-1239"},"PeriodicalIF":1.6,"publicationDate":"2024-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140587933","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

Self-healing polyurethane anticorrosive coatings based on alkyd resin microcapsules 基于醇酸树脂微胶囊的自修复聚氨酯防腐涂料

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-04-15 DOI: 10.1002/maco.202314244

Bin Xie, Hongwei Shi, Yingwei Song, En-Hou Han

引用次数: 0

The effect of partial recrystallization on the corrosion resistance of EN AW6082 forged components evaluated with different tests 通过不同试验评估部分再结晶对 EN AW6082 锻造部件耐腐蚀性的影响

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-04-15 DOI: 10.1002/maco.202414354

Silvia Cecchel, Marcello Gelfi, Giovanna Cornacchia

{"title":"The effect of partial recrystallization on the corrosion resistance of EN AW6082 forged components evaluated with different tests","authors":"Silvia Cecchel, Marcello Gelfi, Giovanna Cornacchia","doi":"10.1002/maco.202414354","DOIUrl":"10.1002/maco.202414354","url":null,"abstract":"Structural automotive components are extensively made of aluminum alloy forgings, due to the elevate strength and low weight required. These products are frequently subjected to recrystallization. Recrystallization, often limited to surface or forging portions, is expected to reduce its tensile strength and corrosion resistance, but the literature is scarce on this subject. For a more comprehensive understanding, the present research studied the corrosion behavior of samples collected from EN AW 6082-T6 forged components, designed to expose both recrystallized and not recrystallized surfaces to the corrosive environment. Several standardized corrosion tests (i.e., PV 1113, ISO 11846, and VW 96380) were applied to assess the most representative with respect to real field exposure. Tensile tests were performed in four different conditions, recrystallized and not recrystallized specimens in an as-forged state or after corrosion. The recrystallization led to a reduction in tensile properties, but this gap was compensated by a higher corrosion resistance than the not recrystallized samples. Consequently, the mechanical properties became comparable after the corrosion test.","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"75 9","pages":"1204-1215"},"PeriodicalIF":1.6,"publicationDate":"2024-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140587657","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

Stress corrosion tests for prestressing steels—Part 1: The influence of surface condition and test solution composition on hydrogen charging 预应力钢材的应力腐蚀试验--第 1 部分：表面条件和试验溶液成分对充氢的影响

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-04-15 DOI: 10.1002/maco.202313948

Lando Seifert, Andreas Grunewald, Thoralf Müller, Gino Ebell

引用次数: 0

Effects of external corrosion defect growth on wall pipeline under internal pressure and various defect sizes with mechano-electrochemical interaction 内压和不同缺陷尺寸下机械-电化学相互作用对管壁外部腐蚀缺陷生长的影响

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-04-12 DOI: 10.1002/maco.202414391

Wei Zhang, Xiaoqian Fu, Minglei Hu, Ke Xu, Kunjie Dai, Jingkun Shi, Yucheng Ji, Chaofang Dong

{"title":"Effects of external corrosion defect growth on wall pipeline under internal pressure and various defect sizes with mechano-electrochemical interaction","authors":"Wei Zhang, Xiaoqian Fu, Minglei Hu, Ke Xu, Kunjie Dai, Jingkun Shi, Yucheng Ji, Chaofang Dong","doi":"10.1002/maco.202414391","DOIUrl":"10.1002/maco.202414391","url":null,"abstract":"The assessment of the impact of corrosion defects on the integrity and safe operation of through-wall pipelines is critical. In this work, a finite element-based model was developed to study the mechano-electrochemical (M-E) effects of external corrosion defects on 10CrMoAl steel pipelines. The effects of parameters such as defect sizes and internal pressures on pipeline conditions are also studied. The results show that increased corrosion depth leads to stress concentration at the center of the defect. The increase in internal pressure causes local plastic deformation and anodic current density concentration at the inner edge of the defect and in the adjacent areas of the defect. M-E interaction causes the growth of corrosion defects significantly at higher internal pressures. The corrosion defects increase with time. As the pressure increases, the failure pressure of the pipeline gradually decreases. The influence of defect depth on the corrosion rate at the defect is greater than that of defect width. With increasing in internal pressure and corrosion defect size, it will lead to more severe plastic deformation, resulting in accelerated corrosion.","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"75 10","pages":"1348-1358"},"PeriodicalIF":1.6,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140578312","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

Developing a self-healing anticorrosion coating for steel protection in marine tidal zone 开发用于海洋潮汐区钢材保护的自修复防腐涂层

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-04-10 DOI: 10.1002/maco.202314174

Navid Atazadeh, Farhad Shahriari Nogorani

{"title":"Developing a self-healing anticorrosion coating for steel protection in marine tidal zone","authors":"Navid Atazadeh, Farhad Shahriari Nogorani","doi":"10.1002/maco.202314174","DOIUrl":"10.1002/maco.202314174","url":null,"abstract":"A self-healing anticorrosion protective was developed for steel st-37 exposed to the marine tidal zone, which is composed of a multi-layer polymer coating. The coating includes zinc-rich epoxy primer, self-healing microencapsulated embedded epoxy, and a top coat consisting of polyurethane incorporated with silica nanoparticles. The size of microcapsules decreased with increasing agitation during encapsulation, which varies from 4 to 43 µm. Good performance was observed for producing the encapsulated particles with a size of up to 5 µm and more than 90% loading of the embedded healing agent, in which a 1680 rpm agitation along with a pH of 3 for the synthesis environment and a 130 min for the synthesis duration is set. The optimal amount of microcapsules and silica nanoparticles was 10 and 1.5 wt%, respectively. Also, the promised self-healing anticorrosion coating leads the damaged areas to be fully healed in almost 12 h in the face of harsh conditions. In contrast to the non-self-healing one, the healing ability of the developed self-healing coating shows good barrier properties and leads to a lesser loss of interface adhesion.","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"75 9","pages":"1112-1132"},"PeriodicalIF":1.6,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140578511","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

Masthead: Materials and Corrosion. 4/2024 刊头：材料与腐蚀。4/2024

IF 1.8 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-04-04 DOI: 10.1002/maco.202470042

引用次数: 0

Cover Picture: Materials and Corrosion. 4/2024 封面图片：材料与腐蚀》。4/2024

IF 1.8 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-04-04 DOI: 10.1002/maco.202470041

Jinqing Liang, Wei Wang, Zhenghang Cao, Jianwen Guo, Zhenzhong Sun, Yang Hai

引用次数: 0