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The Open Corrosion Journal最新文献

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Stress Corrosion Crack Growth Mechanism on SUS316L Stainless Steel SUS316L不锈钢应力腐蚀裂纹扩展机理
The Open Corrosion Journal Pub Date : 2009-08-06 DOI: 10.2174/1876503300902010204
H. Masuda
{"title":"Stress Corrosion Crack Growth Mechanism on SUS316L Stainless Steel","authors":"H. Masuda","doi":"10.2174/1876503300902010204","DOIUrl":"https://doi.org/10.2174/1876503300902010204","url":null,"abstract":"The stress corrosion cracking (SCC) of stainless steel is one of the biggest problems for maintaining atomic power and chemical plants. However the mechanism has not been solved because of difficulty in observing hydrogen movement. In order to solve this problem, the author has developed a new SCC test method that enables the super Kelvin force microscope (SKFM) and the Kelvin force microscope (KFM) observations. By using this test method, the crack tip deformation and surface potential distribution on SUS316L stainless steels were observed by SKFM and KFM. The existence of hydrogen-induced martensite was examined by the magnetic force microscope (MFM) observations. The results showed that a less noble potential region existed near the crack tip. MFM and KFM observation showed hydrogen- induced martensite existed at the less noble potential region. Repeated SKFM observations revealed that the crack is formed by the movement of hydrogen-induced martensite.","PeriodicalId":420093,"journal":{"name":"The Open Corrosion Journal","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123169851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Study of Ceramic and Hybrid Coatings Produced by the Sol-Gel Method for Corrosion Protection 溶胶-凝胶法制备陶瓷及杂化防腐涂料的研究
The Open Corrosion Journal Pub Date : 2009-07-22 DOI: 10.2174/1876503300902010197
G. C. Torre, Espinosa-Medina, A. Martínez-Villafañe, J. González-Rodríguez, V. Castaño
{"title":"Study of Ceramic and Hybrid Coatings Produced by the Sol-Gel Method for Corrosion Protection","authors":"G. C. Torre, Espinosa-Medina, A. Martínez-Villafañe, J. González-Rodríguez, V. Castaño","doi":"10.2174/1876503300902010197","DOIUrl":"https://doi.org/10.2174/1876503300902010197","url":null,"abstract":"Silica based ceramic oxides and hybrid coatings were developed using 3-(trimethoxysilyl) propylmethacrylate (TMSPM), methylmethacrylate (MMA) as the organic phase with different fractions of tetraethoxysilane (TEOS) and aluminium isopropoxide as the inorganic phase using sol-gel process which were deposited onto 316 stainless steel substrate by dip-coating technique, followed by a sintering step. Characterization of the obtained coatings was carried out by scanning electron microscopy to determine the topographical features of the coatings. Furthermore, the coatings were analyzed in this manner after the corrosion tests. Analyses of corrosion resistance for coated and uncoated samples were performed in SO 4 and Cl  solutions. The influence of the sol characteristic and composition, as well as the behaviour of the coatings during the corrosion tests were reported. The results show that coatings prevent corrosion in an acid environment, and the ceramic coating developed best resistance corrosion under those media.","PeriodicalId":420093,"journal":{"name":"The Open Corrosion Journal","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132542086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 33
Corrosion Inhibition of Aluminum in Hydrochloric Acid Solution Using Potassium Iodate Inhibitor 碘酸钾缓蚀剂对铝在盐酸溶液中的缓蚀作用
The Open Corrosion Journal Pub Date : 2009-07-03 DOI: 10.2174/1876503300902010189
A. E. Maghraby
{"title":"Corrosion Inhibition of Aluminum in Hydrochloric Acid Solution Using Potassium Iodate Inhibitor","authors":"A. E. Maghraby","doi":"10.2174/1876503300902010189","DOIUrl":"https://doi.org/10.2174/1876503300902010189","url":null,"abstract":"The inhibition effect of potassium iodate on the corrosion of aluminum in 2M HCl has been studied by weight loss, polarization and electrochemical impedance spectroscopy (EIS) measurements. It has been found that KIO3 acts as an excellent inhibitor. Inhibition efficiency with 100 ppm inhibitor was very high. Polarization curves reveal that the used inhibitor is a mixed type inhibitor. The surface adsorption of KIO3 leads to a decrease of double layer capacitance as well as an increase of polarization resistance. The adsorption of the inhibitor on the aluminum surface is in agreement with Temkin adsorption isotherm.","PeriodicalId":420093,"journal":{"name":"The Open Corrosion Journal","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133511213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 27
Polymers as Corrosion Inhibitors for Metals in Different Media - A Review 聚合物在不同介质中作为金属缓蚀剂的研究进展
The Open Corrosion Journal Pub Date : 2009-06-18 DOI: 10.2174/1876503300902010175
S. Umoren
{"title":"Polymers as Corrosion Inhibitors for Metals in Different Media - A Review","authors":"S. Umoren","doi":"10.2174/1876503300902010175","DOIUrl":"https://doi.org/10.2174/1876503300902010175","url":null,"abstract":"Several works have been done and more are on the pipeline on the influence of organic compounds containing polar functions on the corrosion inhibition of metals in various aqueous media. Corrosion inhibition by such compounds is generally attributed to their adsorption on the metal/solution interface. The specific action of an inhibitor depends on the nature of its interaction with metal surface, which causes a change in either mechanism of the electrochemical corrosion process or in the surface area available for the process. Thus, factors such as physiochemical properties of the inhibitors, the nature and surface charge of the metal, solution composition and pH are important considerations. Polymers function as corrosion inhibitors because of their ability to form complexes through their functional groups with metal ions which occupy large area and by so doing blanket the metal surface from aggressive anions present in solution.","PeriodicalId":420093,"journal":{"name":"The Open Corrosion Journal","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127294872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 93
Realization of Synergism in Sodium Tungstate-Zn2+-N-(Phosphenomethyl) Iminodiaceticacid System in Well Water 钨酸钠- zn2 +- n -(磷甲甲基)亚氨基二乙酸体系在井水中协同作用的实现
The Open Corrosion Journal Pub Date : 2009-05-28 DOI: 10.2174/1876503300902010166
S. Kanimozhi, S. Rajendran
{"title":"Realization of Synergism in Sodium Tungstate-Zn2+-N-(Phosphenomethyl) Iminodiaceticacid System in Well Water","authors":"S. Kanimozhi, S. Rajendran","doi":"10.2174/1876503300902010166","DOIUrl":"https://doi.org/10.2174/1876503300902010166","url":null,"abstract":"The aim of this present work is to study, the corrosion behavior of carbon steel in well water in the presence of sodium tungstate (ST)-Zn 2+ -N-(phosphenomethyl) iminodiaceticacid (NPMIDA) solutions. Electrochemical studies and FTIR spectral studies and weight loss study have been employed. It was found that the inhibition efficiency (IE) of ST (50 ppm)-Zn 2+ (10 ppm) was improved from 8% to 82% by the addition of 150 ppm of NPMIDA. The protective film consists of Fe 2+ -WO4 2, Fe 2+ -NPMIDA complex on anodic site and Zn(OH)2 complex at cathodic site. The NPMIDA-ST-Zn 2+ system increases linear polarization resistance value, decreases corrosion current, increases charge transfer resistance and decreases double layer capacitance value. Based on the above results a mechanism of corrosion inhibition is proposed.","PeriodicalId":420093,"journal":{"name":"The Open Corrosion Journal","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126150966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Hot Corrosion of Ti-Based Intermetallics with Coatings in NaCl+ (Na,K)2SO4 Melts at 750°C 750℃NaCl+ (Na,K)2SO4熔体中ti基金属间化合物涂层的热腐蚀
The Open Corrosion Journal Pub Date : 2009-05-21 DOI: 10.2174/1876503300902010157
Y. Xiong, X. Xiong, Shenglong Zhu, Fu-hui Wang
{"title":"Hot Corrosion of Ti-Based Intermetallics with Coatings in NaCl+ (Na,K)2SO4 Melts at 750°C","authors":"Y. Xiong, X. Xiong, Shenglong Zhu, Fu-hui Wang","doi":"10.2174/1876503300902010157","DOIUrl":"https://doi.org/10.2174/1876503300902010157","url":null,"abstract":"In this study, the hot corrosion of TiAl, TiAlNb, and Ti3AlNb intermetallics with or without enamel coating and sputtered TiAlCr coating in (Na, K)2SO4 + NaCl melts at 750oC is investigated. The interfacial reaction between enamel and those alloys during hot corrosion has also been evaluated. The results indicate that severe corrosion of bare al- loys occurs due to the self catalysis chlorination and sulfidation of metallic components. TiAlNb shows the best corrosion resistance among the three examined alloys. The sputtered TiAlCr coating fails to protect the substrate from hot corrosion due to the rapid volatility of chromium chlorides other than the formation of protective Al2O3 scale. The enamel coating could protect Ti-base alloys from hot corrosion due to its thermal stability and matched thermal expansion coefficient with the substrates. However, the interfacial reaction and selective oxidation of aluminum between enamel coating and Ti- alloys substrate under a low oxygen partial pressure decreases the stability of enamel coating with increasing the activity of aluminum of alloys.","PeriodicalId":420093,"journal":{"name":"The Open Corrosion Journal","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133327420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
An Assumption of Wearing Calculation with the Miner Fatigue Accumulate Theory 用矿工疲劳积累理论计算磨损的假设
The Open Corrosion Journal Pub Date : 2009-05-21 DOI: 10.2174/1876503300902010164
L. Huran
{"title":"An Assumption of Wearing Calculation with the Miner Fatigue Accumulate Theory","authors":"L. Huran","doi":"10.2174/1876503300902010164","DOIUrl":"https://doi.org/10.2174/1876503300902010164","url":null,"abstract":"This paper finds the similarity between the fatigue strength calculation and the IBM wearing calculation method. The Miner Fatigue Accumulate Theory of the unsteady loading has been applied into the calculation of the wear- ing of the unsteady loading, and further more, has been applied into the case when the load variations are continuous. Aims and objectives: We can make use of the Miner Fatigue Accumulate Theory both for the unsteady fatigue wear as well as unsteady fatigue load.","PeriodicalId":420093,"journal":{"name":"The Open Corrosion Journal","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129126585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Effect of a Preliminary Aging Treatment on the Oxidation Kinetic at High Temperature for a Cobalt–Based Alloy Strengthened by Tantalum Carbides 预时效处理对碳化钽强化钴基合金高温氧化动力学的影响
The Open Corrosion Journal Pub Date : 2009-05-15 DOI: 10.2174/1876503300902010150
P. Berthod, L. Aranda, C. Heil
{"title":"Effect of a Preliminary Aging Treatment on the Oxidation Kinetic at High Temperature for a Cobalt–Based Alloy Strengthened by Tantalum Carbides","authors":"P. Berthod, L. Aranda, C. Heil","doi":"10.2174/1876503300902010150","DOIUrl":"https://doi.org/10.2174/1876503300902010150","url":null,"abstract":"The purpose of this work is to examine if the behavior of refractory alloys in oxidation at high temperature can be influenced by the modification of the interdendritic carbides morphology due to a preliminary aging treatment at high temperature. A cobalt-based alloy strengthened by tantalum carbides was first exposed to 1200°C over a period of 100 hours, and characterized in high temperature oxidation, with samples cut in the middle of the alloy. Thermogravimetry runs were performed in air at 1000, 1100 and 1200°C during 50 hours, and the results were analyzed in order to specify the rates of transient oxidation, of parabolic oxidation and of chromia volatilization. The oxidized samples were metallographically examined. The fragmentation of the TaC carbides induced by the aging treatment tends to accelerate the oxidation kinetics in general, with higher values of parabolic and volatilization constants especially at 1200°C.","PeriodicalId":420093,"journal":{"name":"The Open Corrosion Journal","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133701624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
The Behavior of Carbon Steel in Artificial Cooling Water in Presence of Hydroxyphosphonoacetic Acid and Different Oxygen Content Using Electrochemical Impedance Spectroscopy 用电化学阻抗谱法研究碳钢在人工冷却水中羟基膦乙酸和不同氧含量的行为
The Open Corrosion Journal Pub Date : 2009-05-06 DOI: 10.2174/1876503300902010139
H. Castaneda, R. Hernandez, M. Galicia
{"title":"The Behavior of Carbon Steel in Artificial Cooling Water in Presence of Hydroxyphosphonoacetic Acid and Different Oxygen Content Using Electrochemical Impedance Spectroscopy","authors":"H. Castaneda, R. Hernandez, M. Galicia","doi":"10.2174/1876503300902010139","DOIUrl":"https://doi.org/10.2174/1876503300902010139","url":null,"abstract":"This paper presents the results of the interfacial evolution of 1018 steel exposed to artificial cooling water in presence of two different environments: the oxygen content and the 1,2-hydroxyphosphonoacetic acid (HPA). The aerated solution in presence of HPA supported two processes; the first was the sequestration of calcium ions with the subsequent complexation of the calcium carbonate (CaCO3); the second was the precipitation of a layer formed mainly by hematite (Fe2O3) mixed with CaCO3 and phosphorous-based compounds. Conversely, de-aerated conditions in the absence of HPA lead to the formation of a combination of iron oxides (Fe3O4 + Fe2O3) at the surface of the steel. The HPA addition in de- aerated solution produced the formation of plate shape phosphorous-based layer with a mixture of iron oxides (Fe3O4 + Fe2O3). In this work, we could characterize the evolution of the corrosion products layers by Electrochemical Impedance Spectroscopy (EIS) measurements and electrical passive circuits. The continuous EIS results helped to establish interfacial mechanisms of the HPA used as inhibitor and de-aerated (oxygen low content) conditions simulating the presence of oxy- gen scavengers.","PeriodicalId":420093,"journal":{"name":"The Open Corrosion Journal","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132741863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Copper Marine Corrosion: I. Corrosion Rates in Atmospheric and Seawater Environments of Peruvian Port 铜的海洋腐蚀:1 .秘鲁港口大气和海水环境中的腐蚀速率
The Open Corrosion Journal Pub Date : 2009-04-10 DOI: 10.2174/1876503300902010130
L. Veleva, P. Aguilar
{"title":"Copper Marine Corrosion: I. Corrosion Rates in Atmospheric and Seawater Environments of Peruvian Port","authors":"L. Veleva, P. Aguilar","doi":"10.2174/1876503300902010130","DOIUrl":"https://doi.org/10.2174/1876503300902010130","url":null,"abstract":"The initial stages of copper corrosion behavior were studied during one year in different zones of Peruvian seawater and marine atmosphere. Several relevant factors control the development of copper corrosion process, such as oxygen content, chloride salinity, periodical cycles of drying-wetness, time of metal wetness and some specific for the re- gion of Salaverry Port. The highest annual corrosion rate was observed in the half line of tide-water boundary (0.071 mm/year), while the lowest one was in the atmospheric zone (0.016 mm/year). The splash zone (0.025 mm/year) and full immersion (0.032 mm/year) are less aggressive for copper. The extent of copper corrosion, expressed as mass loss (C) in the marine atmospheric environment, with respect to the metal time of wetness (t), obeys the power law C = A t n .","PeriodicalId":420093,"journal":{"name":"The Open Corrosion Journal","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124156787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 24
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