Portugaliae Electrochimica Acta最新文献_第3页

Mild Steel Corrosion Inhibition in 1 M HCl by an Alcoholic Extract of Sargassum Muticum 马尾藻酒精提取物在1m HCl中对低碳钢的缓蚀作用

IF 1.2

Portugaliae Electrochimica Acta Pub Date : 2023-01-01 DOI: 10.4152/pea.2023410204

V. Jeslina, S. Kirubavathy, A. Al-Hashem, al et

{"title":"Mild Steel Corrosion Inhibition in 1 M HCl by an Alcoholic Extract of Sargassum Muticum","authors":"V. Jeslina, S. Kirubavathy, A. Al-Hashem, al et","doi":"10.4152/pea.2023410204","DOIUrl":"https://doi.org/10.4152/pea.2023410204","url":null,"abstract":"The inhibitive effect of a seaweed (SM) alcoholic extract on MS corrosion immersed in 1 M HCl, for 30 min, was evaluated by the WL method and PPD technique. The protective film was investigated by the Vickers hardness test. WL revealed that 500 ppm SM offered 84 % IE against MS corrosion in 1 M HCl. The inhibitor molecules adsorption onto the metal surface obeyed Langmuir’s adsorption isotherm. The R 2 value was very high (0.998). The PPD study showed that E corr slightly shifted to the anodic side. It was inferred that SM functions as a mixed type of corrosion inhibitor, since the shifts were relatively small. In SM presence, LPR value increased and I corr decreased. Due to the blanket effect (formation of a protective film on the metallic surface, which was found to be a monolayer, blocking anodic and cathodic sites), the electrons transfer from the metal into the solution was blocked. Vickers hardness of the inhibited MS surface was lower than that of the polished one, but higher than that of the corroded one. The outcome of the study may be used in the pickling industry, where HCl is used to remove the rust from the metal surface, simultaneously not attacking it.","PeriodicalId":20334,"journal":{"name":"Portugaliae Electrochimica Acta","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70921712","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

Experimental Evaluation and Theoretical Study of Imidazolium and Benzimidazolium Derivatives as Corrosion Inhibitors of Mild Steel in a 0.5 M H2SO4 Solution 咪唑及苯并咪唑衍生物在0.5 M H2SO4溶液中作为低碳钢缓蚀剂的实验评价与理论研究

IF 1.2

Portugaliae Electrochimica Acta Pub Date : 2023-01-01 DOI: 10.4152/pea.2023410201

M. E. Said, M. Bouchouit, A. Zaiter, al et

引用次数: 1

Investigation of Mango (Mangnifera Indica) Extract as Zinc Corrosion Inhibitor in a Sodium Hydroxide Medium 芒果(Mangnifera Indica)提取物在氢氧化钠介质中的锌缓蚀剂研究

IF 1.2

Portugaliae Electrochimica Acta Pub Date : 2023-01-01 DOI: 10.4152/pea.2023410501

M. Omotioma, O. Onukwuli, C. O. Nevo

引用次数: 1

Tribological Behavior of Inconel 718 Nickel-Based Super Alloy Doped with Graphene Nanoplatelets 掺杂石墨烯纳米片镍基合金Inconel 718的摩擦学行为

IF 1.2

Portugaliae Electrochimica Acta Pub Date : 2023-01-01 DOI: 10.4152/pea.2023410102

K. Khoele, O. M. Ama, D. Disai, Al Et

{"title":"Tribological Behavior of Inconel 718 Nickel-Based Super Alloy Doped with Graphene Nanoplatelets","authors":"K. Khoele, O. M. Ama, D. Disai, Al Et","doi":"10.4152/pea.2023410102","DOIUrl":"https://doi.org/10.4152/pea.2023410102","url":null,"abstract":"In continuation of our previously published work entitled Mechanical and Corrosion Behavior of Inconel 718 Nickel-Based Super Alloy Doped with Graphene Nanoplatelets , the present study investigated the tribological performance of modified IN 718 doped with GrNs. Friction and wear properties were analised using an advance universal tribometer, while surface mophologies were studied by SEM. The modified SA tribological properties validation was done in relative comparison to those of pure IN 718 . Mechanical properties with higher  , younger modulus values, better morphologies, higher AWI, lower SWR and µ values were noted on the modified IN 718. Nonetheless, an increase in the load proved to affect the tribological oxide layer properties of both pure and modified IN 718. room temperature. The tests were run under dry lubrication conditions that are explained further ahead. A steel ball was used as the counterpart material against both standard and modified materials. The diameter size of the steel ball was 1.50 mm, and the acquisition rate was 3.14 Hz, with an equivalent stroke length of 6 mm. The measurements were intended to incorporate friction and wear properties from both pure and modified IN 718.","PeriodicalId":20334,"journal":{"name":"Portugaliae Electrochimica Acta","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70921631","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

Performance of Avocado Seeds as New Green Corrosion Inhibitor for 7075-T6 Al Alloy in a 3.5% NaCl Solution: Electrochemical, Thermodynamic, Surface and Theoretical Investigations 牛油果籽在3.5% NaCl溶液中作为7075-T6铝合金新型绿色缓蚀剂的性能:电化学、热力学、表面和理论研究

IF 1.2

Portugaliae Electrochimica Acta Pub Date : 2023-01-01 DOI: 10.4152/pea.2023410603

M. Radi, R. Melián, M. Galai, al et

引用次数: 3

Characterization and Performance of TiO2 Nanoparticles Prepared by Microwave in Different Mixtures of Water and Ethylene Glycol for the Food Dye E131 VF Degradation 微波法制备TiO2纳米粒子在不同水/乙二醇混合物中降解食用染料E131 VF的表征及性能

IF 1.2

Portugaliae Electrochimica Acta Pub Date : 2023-01-01 DOI: 10.4152/pea.2023410305

F. Kassir, M. Azoury, P. Damacet, al et

引用次数: 2

The Role of Nanomaterials in the Recent Development of Electrochemical Biosensors 纳米材料在电化学生物传感器发展中的作用

IF 1.2

Portugaliae Electrochimica Acta Pub Date : 2023-01-01 DOI: 10.4152/pea.2023410303

S. Abdulhussein, F. F. Al-Kazazz, A. Rheima

引用次数: 2

The Efficacy of Plant Inhibitors as Used against Structural Mild Steel Corrosion: A Review 植物缓蚀剂抗结构低碳钢腐蚀的研究进展

IF 1.2

Portugaliae Electrochimica Acta Pub Date : 2023-01-01 DOI: 10.4152/pea.2023410505

U. S. Nwigwe, C. Nwoye

{"title":"The Efficacy of Plant Inhibitors as Used against Structural Mild Steel Corrosion: A Review","authors":"U. S. Nwigwe, C. Nwoye","doi":"10.4152/pea.2023410505","DOIUrl":"https://doi.org/10.4152/pea.2023410505","url":null,"abstract":"MS acceptability for nowadays structural construction is premised on its availability and low cost. However, due to MS poor corrosion resistance, most especially in acidic and alkaline environments, there have been increasing concerns about its use. The use of inhibitors, as proposed by different researchers, mitigates MS CR, thus reducing the economic losses experienced by all chief users of this alloy. In recent years, scientists have focused on green inhibitors obtained from plant, fruit and vegetable extracts, and essential oils. Besides being environmentally friendly, in terms of corrosion resistance, plant extracts are becoming increasingly important, due to their low cost and toxicity, and high availability. Additionally, they are rich in organic compounds with polar atoms, such as O, P, S and N, containing multiple bonds in their molecules, through which they can adsorb onto the metal surface, forming a protective film, by various adsorption isotherms. This paper provides a review on research works done so far on MS corrosion control by naturally occurring plant extracts as corrosion inhibitors, in both acidic and alkaline environments, where this alloy is mainly applied.","PeriodicalId":20334,"journal":{"name":"Portugaliae Electrochimica Acta","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70922599","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

Protective Compositions Based on Modified Colza Oil Refining Products against Carbon Steel Atmospheric Corrosion 以改性菜籽油精制产品为基础的碳钢大气腐蚀防护成分研究

IF 1.2

Portugaliae Electrochimica Acta Pub Date : 2023-01-01 DOI: 10.4152/pea.2023410605

V. Vigdorovich, E. Tanygina, A. Tanygin, al et

引用次数: 0

Structure Formation and Multi-layering in an Electrodeposited Copper-Antimony Alloy 电沉积铜锑合金的结构形成与多层结构

IF 1.2

Portugaliae Electrochimica Acta Pub Date : 2023-01-01 DOI: 10.4152/pea.2023410502

V. Kostov, T. Dobrovolska

引用次数: 1