A. Fouda, Aya Salem, Ahmed Wahba, Samir El-Maksous, Mahmoud El-Haddad
The research paper discusses the study of the inhibition rates of Chelidonium Majus (Papaveraceae) plant extract (CME) on abrass in 1.0 M HNO3 solution. The study was carried out using chemical and electrochemical techniques, which showed results of up to 97% inhibition with 150 ppm at 250C. For the polarization results, CME is a mixed-type inhibitor. The increase in the charge transfer resistance and the decrease in the capacitance of the double layer with increasing concentration were observed by Nyquist diagrams and it was found that the inhibition process follows the Langmuir isotherm which proves the formation of a monolayer on the surface of the abrass. Quantum chemical calculations were performed using the DFT method to determine the active centres of the CME which responsible for adsorption, as well, to their possible interaction mechanism with the brass surface.
本研究探讨了在1.0 M HNO3溶液中，长春花Chelidonium Majus (Papaveraceae)植物提取物(CME)对杂草的抑制率。该研究使用化学和电化学技术进行，结果表明，在250℃下，150ppm的缓蚀效果高达97%。从极化结果来看，CME是一种混合型抑制剂。通过奈奎斯特图观察到，随着浓度的增加，双层的电荷转移电阻增大，电容减小，抑制过程遵循Langmuir等温线，证明在磨砂表面形成单层。量子化学计算使用DFT方法来确定CME的活性中心，这些中心负责吸附，以及它们与黄铜表面可能的相互作用机制。
{"title":"Experimental and theoretical optimization of Chelidonium Majus (Papaveraceae) extract as an environmentally friendly inhibitor for corrosion of a-brass in nitric acid solution","authors":"A. Fouda, Aya Salem, Ahmed Wahba, Samir El-Maksous, Mahmoud El-Haddad","doi":"10.5937/zasmat2303239f","DOIUrl":"https://doi.org/10.5937/zasmat2303239f","url":null,"abstract":"The research paper discusses the study of the inhibition rates of Chelidonium Majus (Papaveraceae) plant extract (CME) on abrass in 1.0 M HNO3 solution. The study was carried out using chemical and electrochemical techniques, which showed results of up to 97% inhibition with 150 ppm at 250C. For the polarization results, CME is a mixed-type inhibitor. The increase in the charge transfer resistance and the decrease in the capacitance of the double layer with increasing concentration were observed by Nyquist diagrams and it was found that the inhibition process follows the Langmuir isotherm which proves the formation of a monolayer on the surface of the abrass. Quantum chemical calculations were performed using the DFT method to determine the active centres of the CME which responsible for adsorption, as well, to their possible interaction mechanism with the brass surface.","PeriodicalId":23842,"journal":{"name":"Zastita materijala","volume":"414 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84044054","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}
A. Papludis, S. Alagić, Snežana Milić, Dragana V. Medić, Ivana G. Zlatanović, J. Nikolić, V. Stankov-Jovanović
Polycyclic aromatic hydrocarbons (PAHs) are considered as the pollutants of highest priority, and their remediation is of a global concern. The purpose of this study was to investigate the phytoremediation potential of Hedera helix (Hh) determining the content of 16 priority PAHs in its soil and root samples collected from the rural and industrial zones of the Bor's municipality (Serbia). The content of Ʃ16 PAHs in the soils was: 326.49 mg/kg at the site Borsko jezero to maximal 1937.64 mg/kg at the site Slatinsko naselje. The level of soil pollution (depending on the concentration of S16 PAHs), was high at many tested sites and it was under the significant influence of anthropogenic activities. The concentration for S16 PAHs in the samples of roots ranged from 480.71 mg/kg at the site Krivelj to 1748.32 mg/kg at the site Naselje Sunce. Interestingly, the extremely toxic benzo(a)pyrene, was not detected in the roots of Hh. Bioconcentration factors (BCFs) were applied to determine the capacity of Hh for PAH accumulation in the root, and consequently, for determination of its phytostabilization potential. In most cases, BCF values were higher at the locations from UI zone. The calculated BCFs were higher for LMW PAHs than for HMW PAHs. At the majority of the investigated locations, the tested plant species was especially successful in the root accumulation of the compounds such as acenaphthene, fluorene, anthracene, dibenzo(a,h)anthracene, and the sum of benzo(k)fluoranthene and benzo(b)fluoranthene. These findings showed that Hh can be successfully used in phytostabilization of many PAHs.
{"title":"The capacities of Hedera helix from the Bor region for PAH accumulation in the root and implications for phytostabilization","authors":"A. Papludis, S. Alagić, Snežana Milić, Dragana V. Medić, Ivana G. Zlatanović, J. Nikolić, V. Stankov-Jovanović","doi":"10.5937/zasmat2301013p","DOIUrl":"https://doi.org/10.5937/zasmat2301013p","url":null,"abstract":"Polycyclic aromatic hydrocarbons (PAHs) are considered as the pollutants of highest priority, and their remediation is of a global concern. The purpose of this study was to investigate the phytoremediation potential of Hedera helix (Hh) determining the content of 16 priority PAHs in its soil and root samples collected from the rural and industrial zones of the Bor's municipality (Serbia). The content of Ʃ16 PAHs in the soils was: 326.49 mg/kg at the site Borsko jezero to maximal 1937.64 mg/kg at the site Slatinsko naselje. The level of soil pollution (depending on the concentration of S16 PAHs), was high at many tested sites and it was under the significant influence of anthropogenic activities. The concentration for S16 PAHs in the samples of roots ranged from 480.71 mg/kg at the site Krivelj to 1748.32 mg/kg at the site Naselje Sunce. Interestingly, the extremely toxic benzo(a)pyrene, was not detected in the roots of Hh. Bioconcentration factors (BCFs) were applied to determine the capacity of Hh for PAH accumulation in the root, and consequently, for determination of its phytostabilization potential. In most cases, BCF values were higher at the locations from UI zone. The calculated BCFs were higher for LMW PAHs than for HMW PAHs. At the majority of the investigated locations, the tested plant species was especially successful in the root accumulation of the compounds such as acenaphthene, fluorene, anthracene, dibenzo(a,h)anthracene, and the sum of benzo(k)fluoranthene and benzo(b)fluoranthene. These findings showed that Hh can be successfully used in phytostabilization of many PAHs.","PeriodicalId":23842,"journal":{"name":"Zastita materijala","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86675397","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}
R. Hasanagić, Leila Fathi, Atif Hodžić, Mohsen Bahmani
In Europe, wood is a crucial construction material that has experienced a surge in use for building applications in recent years. To enhance its dimensional stability and durability, thermal modification is a widely accepted commercial technology. Thermal modification is a popular technique that alters the properties of wood, improving its resistance to decay and increasing its dimensional stability. The process involves heating wood to high temperatures under controlled conditions, leading to chemical reactions that result in various physical and mechanical changes. This paper will discuss the effects of thermal modification on the physical properties of wood, such as density, moisture content, and color, as well as its impact on the mechanical properties, including strength, stiffness, and hardness. Additionally, the review will examine the factors that influence the degree of modification, such as temperature, duration, and wood species. Finally, the paper will conclude with an overview of the current state of research in this field and identify potential avenues for future investigation.
{"title":"Physical and mechanical changes in thermal modified wood: A review","authors":"R. Hasanagić, Leila Fathi, Atif Hodžić, Mohsen Bahmani","doi":"10.5937/zasmat2303314h","DOIUrl":"https://doi.org/10.5937/zasmat2303314h","url":null,"abstract":"In Europe, wood is a crucial construction material that has experienced a surge in use for building applications in recent years. To enhance its dimensional stability and durability, thermal modification is a widely accepted commercial technology. Thermal modification is a popular technique that alters the properties of wood, improving its resistance to decay and increasing its dimensional stability. The process involves heating wood to high temperatures under controlled conditions, leading to chemical reactions that result in various physical and mechanical changes. This paper will discuss the effects of thermal modification on the physical properties of wood, such as density, moisture content, and color, as well as its impact on the mechanical properties, including strength, stiffness, and hardness. Additionally, the review will examine the factors that influence the degree of modification, such as temperature, duration, and wood species. Finally, the paper will conclude with an overview of the current state of research in this field and identify potential avenues for future investigation.","PeriodicalId":23842,"journal":{"name":"Zastita materijala","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77668325","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}
A set of experimental-statistical models has been obtained that makes it possible to predict the workability and strength of concrete on a composite binder, including the addition of dust from cement clinker kilns and granulated blast-furnace slag, as well as polycarboxylate superplasticizer Sika VC 225. The values of the critical water-cement ratio are determined, which determine the area of constant water demand and take into account the binder normal consistency, as well as the adsorption coefficients of fine and coarse aggregates. Experimental-statistical models of the coefficients that determine the yield of concrete strength per 1 kg of composite cement and Portland cement Cem I contained in it are obtained.
{"title":"Concretes based on composite cements with the addition of granulated blast furnace slag and cement dust","authors":"L. Dvorkin, V. Zhitkovsky","doi":"10.5937/zasmat2303262d","DOIUrl":"https://doi.org/10.5937/zasmat2303262d","url":null,"abstract":"A set of experimental-statistical models has been obtained that makes it possible to predict the workability and strength of concrete on a composite binder, including the addition of dust from cement clinker kilns and granulated blast-furnace slag, as well as polycarboxylate superplasticizer Sika VC 225. The values of the critical water-cement ratio are determined, which determine the area of constant water demand and take into account the binder normal consistency, as well as the adsorption coefficients of fine and coarse aggregates. Experimental-statistical models of the coefficients that determine the yield of concrete strength per 1 kg of composite cement and Portland cement Cem I contained in it are obtained.","PeriodicalId":23842,"journal":{"name":"Zastita materijala","volume":"76 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86925305","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}
Biodiesel is being advertised as a realistic alternative fuel. Since it has a lower environmental effect than standard fuel properties, biodiesel has risen in popularity recently, and there has been a lot of study done on it all around the world. Biodiesel is prone to oxidation due to the presence of unsaturated fatty acids in the ester, which has been one of the biggest downsides. When biodiesel comes into contact with oxygen during storage or even with metal impurities, it oxidises. Antioxidants are really helpful in resolving problems with oxidation stability. In this paper, mainly discussed about dual biodiesel (40:60), mixed with TiO2 Nanoparticles at various 25 ppm levels for the blend DBNP20, DBNP40 and DBNP60 respectively. The results implies good performances and emission characteristics with lower SFC and reasonable values are tabulated in the with neat diesel values.
{"title":"Synthesis of nanoparticles in dual biodiesel and enchancement in performances and emission characteristics","authors":"Casmir Antony, Dhas Ghana, A. Kumar","doi":"10.5937/zasmat2301022j","DOIUrl":"https://doi.org/10.5937/zasmat2301022j","url":null,"abstract":"Biodiesel is being advertised as a realistic alternative fuel. Since it has a lower environmental effect than standard fuel properties, biodiesel has risen in popularity recently, and there has been a lot of study done on it all around the world. Biodiesel is prone to oxidation due to the presence of unsaturated fatty acids in the ester, which has been one of the biggest downsides. When biodiesel comes into contact with oxygen during storage or even with metal impurities, it oxidises. Antioxidants are really helpful in resolving problems with oxidation stability. In this paper, mainly discussed about dual biodiesel (40:60), mixed with TiO2 Nanoparticles at various 25 ppm levels for the blend DBNP20, DBNP40 and DBNP60 respectively. The results implies good performances and emission characteristics with lower SFC and reasonable values are tabulated in the with neat diesel values.","PeriodicalId":23842,"journal":{"name":"Zastita materijala","volume":"39 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76936115","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}
Many researches dealt with PMMA dental base material and the development of its properties to reach a longer life span for implants and fillings. The current work pay attention to examine the loading amount of hybrid nanoparticles, SiC and TiO2, and find out how it affects the mechanical and tribological properties. Hybrid NPs were dispersed on PMMA resin with filler amount of 0.4%, 0.8%, 1.2%, 1.6%, and 2.0 wt.%, 50/50 between SiC and TiO2 NPs. The mechanical properties were evaluated by determining the hardness, Shore D, compressive strength, and modulus of elasticity. While the tribological performance was assessed via examining the COF, wear rate and scanning the worn surfaces using optical and SEM images. The results can be indicated that the PMMA resin exhibits a good reaction bonding with low loading amount of the hybrid NPs. Moreover, the high loading content had a negative effect on the mechanical and tribological properties. Subsequently, the loading content of 0.8 wt.% of SiC/TiO2 NPs indicates that it has the best performance comparing with the pure PMMA.
{"title":"Effect of hybrid SiC/TiO2 nanoparticles on tribological and mechanical performance of polymethylmethacrylate dental base material","authors":"Ameer Kamel, Ahmed Ahmed, A. El-Abd","doi":"10.5937/zasmat2301086k","DOIUrl":"https://doi.org/10.5937/zasmat2301086k","url":null,"abstract":"Many researches dealt with PMMA dental base material and the development of its properties to reach a longer life span for implants and fillings. The current work pay attention to examine the loading amount of hybrid nanoparticles, SiC and TiO2, and find out how it affects the mechanical and tribological properties. Hybrid NPs were dispersed on PMMA resin with filler amount of 0.4%, 0.8%, 1.2%, 1.6%, and 2.0 wt.%, 50/50 between SiC and TiO2 NPs. The mechanical properties were evaluated by determining the hardness, Shore D, compressive strength, and modulus of elasticity. While the tribological performance was assessed via examining the COF, wear rate and scanning the worn surfaces using optical and SEM images. The results can be indicated that the PMMA resin exhibits a good reaction bonding with low loading amount of the hybrid NPs. Moreover, the high loading content had a negative effect on the mechanical and tribological properties. Subsequently, the loading content of 0.8 wt.% of SiC/TiO2 NPs indicates that it has the best performance comparing with the pure PMMA.","PeriodicalId":23842,"journal":{"name":"Zastita materijala","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84594892","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}
The weave pattern (texture) of woven fabric is considered to be an important factor of the design and production of high-quality fabric. Traditionally, the recognition of woven fabric has a lot of challenges due to its manual visual inspection. The approaches based on early machine learning algorithms directly depend on handcrafted features, which are time-consuming and occurs more errors. Hence, an automated system is needed for classification of woven fabric to improve productivity. Along with the rapid development of computer vision, the automatic and efficient methods for woven fabric classification are desperately needed. The prediction of fabric weave pattern Fabric is done by acquiring the high-quality images of the fabric. Then the acquired images are subjected to weave classification algorithm. The output of the processed image is used as an input to the Artificial Neural Network (ANN) which uses back propagation algorithm to calculate the weighted factors and generates the desired classification of weave patterns as an output. In this review paper discussed about the study on the various neural network that are used for prediction of fabric weave pattern.
{"title":"Application of artificial neural network in determining the fabric weave pattern","authors":"Subrata Das, Keerthana Shanmugaraja","doi":"10.5937/zasmat2203291d","DOIUrl":"https://doi.org/10.5937/zasmat2203291d","url":null,"abstract":"The weave pattern (texture) of woven fabric is considered to be an important factor of the design and production of high-quality fabric. Traditionally, the recognition of woven fabric has a lot of challenges due to its manual visual inspection. The approaches based on early machine learning algorithms directly depend on handcrafted features, which are time-consuming and occurs more errors. Hence, an automated system is needed for classification of woven fabric to improve productivity. Along with the rapid development of computer vision, the automatic and efficient methods for woven fabric classification are desperately needed. The prediction of fabric weave pattern Fabric is done by acquiring the high-quality images of the fabric. Then the acquired images are subjected to weave classification algorithm. The output of the processed image is used as an input to the Artificial Neural Network (ANN) which uses back propagation algorithm to calculate the weighted factors and generates the desired classification of weave patterns as an output. In this review paper discussed about the study on the various neural network that are used for prediction of fabric weave pattern.","PeriodicalId":23842,"journal":{"name":"Zastita materijala","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78033047","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}
Electronic and electric (e-) waste is a major environmental problem worldwide. An improper handling, disposal and recycling of e-waste lead to the negative impacts on the environment, especially on soil pollution. It is known that, in the environment, organic pollutants such as polycyclic aromatic hydrocarbons (PAHs), can be formed in several ways, including the pyrolytic processes during the incineration of e-waste. Given that these organic substances are very toxic, even in extremely low concentrations, the main goal of this paper was to present a literature review of PAHs in the soil near the sites for the disposal and recycling of e-waste that are not regulated according to the adequate, positive legislations.
{"title":"The content of polycyclic aromatic hydrocarbons in soil formed during incineracion of e-waste at the sites of its inadequate disposal and recycling","authors":"A. Papludis, Ana T. Simonović, S. Alagić","doi":"10.5937/zasmat2202165p","DOIUrl":"https://doi.org/10.5937/zasmat2202165p","url":null,"abstract":"Electronic and electric (e-) waste is a major environmental problem worldwide. An improper handling, disposal and recycling of e-waste lead to the negative impacts on the environment, especially on soil pollution. It is known that, in the environment, organic pollutants such as polycyclic aromatic hydrocarbons (PAHs), can be formed in several ways, including the pyrolytic processes during the incineration of e-waste. Given that these organic substances are very toxic, even in extremely low concentrations, the main goal of this paper was to present a literature review of PAHs in the soil near the sites for the disposal and recycling of e-waste that are not regulated according to the adequate, positive legislations.","PeriodicalId":23842,"journal":{"name":"Zastita materijala","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76191908","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}
The importance of corrosion studies brings to the forefront economic losses, damage, and safety issues of metals deterioration in the construction industry. Although the choice of a material and use of inhibitors can contribute to its resistance to environmental corrosion behavior, the structural deterioration of metals can be exacerbated under operation conditions. In this review, highlights of research findings published in the past five years on the use of plant materials as corrosion inhibitors for variants of steel: carbon steel, mild steel, stainless steel are provided. It elucidates the meaning of green inhibitors and their types. It also presents the methods employed to ascertain the inhibition efficiencies of the plants/plant parts listed and the parameters considered in the corrosion inhibition analyses. The major gaps or limitations identified in the reported research findings include experimentation at constant temperatures and short immersion periods for the alloys. Due to the fact that, if these extracts were to be deployed for industrial use, they'd be subjected to more hazardous conditions, such as higher temperatures, pressures, etc., this paper proposes that their investigations as potential inhibitors on the laboratory/pilot scale be performed at higher temperatures and longer immersion times which may as such provide more comprehensive knowledge on the environmental/climatic requirements for their application. Additional improvement strategies are also suggested. The list of extracts, however, is not exhaustive.
{"title":"Plant materials as green corrosion inhibitors for select iron alloys: A review","authors":"I. Ekeke, S. Efe, F. Nwadire","doi":"10.5937/zasmat2202183e","DOIUrl":"https://doi.org/10.5937/zasmat2202183e","url":null,"abstract":"The importance of corrosion studies brings to the forefront economic losses, damage, and safety issues of metals deterioration in the construction industry. Although the choice of a material and use of inhibitors can contribute to its resistance to environmental corrosion behavior, the structural deterioration of metals can be exacerbated under operation conditions. In this review, highlights of research findings published in the past five years on the use of plant materials as corrosion inhibitors for variants of steel: carbon steel, mild steel, stainless steel are provided. It elucidates the meaning of green inhibitors and their types. It also presents the methods employed to ascertain the inhibition efficiencies of the plants/plant parts listed and the parameters considered in the corrosion inhibition analyses. The major gaps or limitations identified in the reported research findings include experimentation at constant temperatures and short immersion periods for the alloys. Due to the fact that, if these extracts were to be deployed for industrial use, they'd be subjected to more hazardous conditions, such as higher temperatures, pressures, etc., this paper proposes that their investigations as potential inhibitors on the laboratory/pilot scale be performed at higher temperatures and longer immersion times which may as such provide more comprehensive knowledge on the environmental/climatic requirements for their application. Additional improvement strategies are also suggested. The list of extracts, however, is not exhaustive.","PeriodicalId":23842,"journal":{"name":"Zastita materijala","volume":"81 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83873602","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}
K. Kavipriya, Lavanya Lurdu, Kuppusamy Bhuvaneswari, V. Velkannan, Nilavan Anitha, S. Rajendran, Č. Lačnjevac
The corrosion resistance of mild steel (used to make hull plates in ship technology) in seawater before paint coating (Nippon paint, weatherbond advance) and after paint coating has been measured by electrochemical studies such as Polarisation study and AC impedance spectra. It is observed that after paint coating, the corrosion resistance of mild steel hull plates increases. Polarization study reveals that after paint coating, the linear polarization resistance increases and corrosion current decreases. AC impedance spectra reveal that in the presence of paint coating charge transfer resistance value increases, impedance value increases, phase angle increases and double layer capacitance value decreases.
{"title":"Influence of a paint coating on the corrosion of hull plates made of mild steel in natural seawater","authors":"K. Kavipriya, Lavanya Lurdu, Kuppusamy Bhuvaneswari, V. Velkannan, Nilavan Anitha, S. Rajendran, Č. Lačnjevac","doi":"10.5937/zasmat2203353k","DOIUrl":"https://doi.org/10.5937/zasmat2203353k","url":null,"abstract":"The corrosion resistance of mild steel (used to make hull plates in ship technology) in seawater before paint coating (Nippon paint, weatherbond advance) and after paint coating has been measured by electrochemical studies such as Polarisation study and AC impedance spectra. It is observed that after paint coating, the corrosion resistance of mild steel hull plates increases. Polarization study reveals that after paint coating, the linear polarization resistance increases and corrosion current decreases. AC impedance spectra reveal that in the presence of paint coating charge transfer resistance value increases, impedance value increases, phase angle increases and double layer capacitance value decreases.","PeriodicalId":23842,"journal":{"name":"Zastita materijala","volume":"85 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83910173","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}
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