{"title":"Effect of Ti and C addition on oxidation resistance of FeCoCrNiMn high entropy alloys prepared by powder metallurgy","authors":"Haichao Wang, Xiaoqiang Liu, Zhanjiang Li, Li Chen, Pinqiang Dai, Qunhua Tang","doi":"10.1108/acmm-11-2023-2918","DOIUrl":"https://doi.org/10.1108/acmm-11-2023-2918","url":null,"abstract":"<h3>Purpose</h3>\u0000<p>The purpose of this paper is to study the high temperature oxidation behavior of Ti and C-added FeCoCrNiMn high entropy alloys (HEAs).</p><!--/ Abstract__block -->\u0000<h3>Design/methodology/approach</h3>\u0000<p>Cyclic oxidation method was used to obtain the oxidation kinetic profile and oxidation rate. The microstructures of the surface and cross section of the samples after oxidation were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM).</p><!--/ Abstract__block -->\u0000<h3>Findings</h3>\u0000<p>The results show that the microstructure of the alloy mainly consisted of FCC (Face-centered Cubic Structure) main phase and carbides (M<sub>7</sub>C<sub>3</sub>, M<sub>23</sub>C<sub>6</sub> and TiC). With the increase of Ti and C content, the microhardness, strength and oxidation resistance of the alloy were effectively improved. After oxidation at a constant temperature of 800 °C for 100 h, the preferential oxidation of chromium in the chromium carbide determined the early formation of dense chromium oxide layers compared to the HEAs substrate, resulting in the optimal oxidation resistance of the TC30 alloy.</p><!--/ Abstract__block -->\u0000<h3>Originality/value</h3>\u0000<p>More precipitated CrC can preferentially oxidize and rapidly form a dense Cr<sub>2</sub>O<sub>3</sub> layer early in the oxidation, which will slow down the further oxidation of the alloy.</p><!--/ Abstract__block -->","PeriodicalId":8217,"journal":{"name":"Anti-corrosion Methods and Materials","volume":"54 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140302735","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}
Guangwei Liang, Zhiming Gao, Cheng-Man Deng, Wenbin Hu
{"title":"Effect of nano-Al2O3 particle addition on Co–P–xAl2O3 nanocomposite plating electroplated on X65 steel","authors":"Guangwei Liang, Zhiming Gao, Cheng-Man Deng, Wenbin Hu","doi":"10.1108/acmm-01-2024-2949","DOIUrl":"https://doi.org/10.1108/acmm-01-2024-2949","url":null,"abstract":"<h3>Purpose</h3>\u0000<p>The purpose of this study is to reveal the effect of nano-Al<sub>2</sub>O<sub>3</sub> particle addition on the nucleation/growth kinetics, microhardness, wear resistance and corrosion resistance of Co–P–xAl<sub>2</sub>O<sub>3</sub> nanocomposite plating.</p><!--/ Abstract__block -->\u0000<h3>Design/methodology/approach</h3>\u0000<p>The kinetics and properties of Co–P–xAl<sub>2</sub>O<sub>3</sub> nanocomposite plating prepared by electroplating were investigated by electrochemical measurements, scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, Vickers microhardness measurement, SRV5 friction and wear tester and atomic force microscopy.</p><!--/ Abstract__block -->\u0000<h3>Findings</h3>\u0000<p>A 12 g/L nano-Al<sub>2</sub>O<sub>3</sub> addition in the plating solution can transform the nucleation/growth kinetics of the plating from the 3D progressive model to the 3D instantaneous model. The microhardness of the plating increased with the increase of nano-Al<sub>2</sub>O<sub>3</sub> content in plating. The wear resistance of the plating did not adhere strictly to Archard’s law. An even and denser corrosion product film was generated due to the finer grains, with a high corrosion resistance.</p><!--/ Abstract__block -->\u0000<h3>Originality/value</h3>\u0000<p>The effect of different nano-Al<sub>2</sub>O<sub>3</sub> addition on the nucleation/growth kinetics and properties of Co–P–xAl<sub>2</sub>O<sub>3</sub> nanocomposite plating was investigated, and an anticorrosion mechanism of Co–P–xAl<sub>2</sub>O<sub>3</sub> nanocomposite plating was proposed.</p><!--/ Abstract__block -->","PeriodicalId":8217,"journal":{"name":"Anti-corrosion Methods and Materials","volume":"43 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139920092","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}
Thien Vuong Nguyen, Vy Do Truc, Tuan Anh Nguyen, Dai Lam Tran
{"title":"Synergistic effect of oxide nanoparticles and inorganic inhibitor on anti-corrosion performance of epoxy coating","authors":"Thien Vuong Nguyen, Vy Do Truc, Tuan Anh Nguyen, Dai Lam Tran","doi":"10.1108/acmm-06-2023-2835","DOIUrl":"https://doi.org/10.1108/acmm-06-2023-2835","url":null,"abstract":"<h3>Purpose</h3>\u0000<p>This study aims to explore the synergistic effect of oxide nanoparticles (ZnO, Fe<sub>2</sub>O<sub>3</sub>, SiO<sub>2</sub>) and cerium nitrate inhibitor on anti-corrosion performance of epoxy coating. First, cerium nitrate inhibitors are absorbed on the surface of various oxide nanoparticles. Thereafter, epoxy nanocomposite coatings have been fabricated on carbon steel substrate using these oxide@Ce nanoparticles as both nano-fillers and nano-inhibitors.</p><!--/ Abstract__block -->\u0000<h3>Design/methodology/approach</h3>\u0000<p>To evaluate the impact of oxides@Ce nanoparticles on mechanical properties of epoxy coating, the abrasion resistance and impact resistance of epoxy coatings have been examined. To study the impact of oxides@Ce nanoparticles on anti-corrosion performance of epoxy coating for steel, the electrochemical impedance spectroscopy has been carried out in 3% NaCl solution.</p><!--/ Abstract__block -->\u0000<h3>Findings</h3>\u0000<p>ZnO@Ce3+ and SiO2@Ce3+ nanoparticles provide more enhancement in the epoxy pore network than modification of the epoxy/steel interface. Whereas, Fe2O3@Ce3+ nanoparticles have more to do with modification of the epoxy/steel interface than to change the epoxy pore network.</p><!--/ Abstract__block -->\u0000<h3>Originality/value</h3>\u0000<p>Incorporation of both oxide nanoparticles and inorganic inhibitor into the epoxy resin is a promising approach for enhancing the anti-corrosion performance of carbon steel.</p><!--/ Abstract__block -->","PeriodicalId":8217,"journal":{"name":"Anti-corrosion Methods and Materials","volume":"10 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139920317","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}
Shuliu Wang, Qianqian Liu, Jin Wang, Nana Chen, JunHang Chen, Jialiang Song, Xin Zhang, Kui Xiao
{"title":"Study of the role of aluminium and corrosion mechanism in galvalume coating in the marine atmospheric environment","authors":"Shuliu Wang, Qianqian Liu, Jin Wang, Nana Chen, JunHang Chen, Jialiang Song, Xin Zhang, Kui Xiao","doi":"10.1108/acmm-08-2023-2889","DOIUrl":"https://doi.org/10.1108/acmm-08-2023-2889","url":null,"abstract":"<h3>Purpose</h3>\u0000<p>This study aims to investigate the role of aluminium (Al) in marine environment and the corrosion mechanism of galvalume coatings by conducting accelerated experiments and data analysis.</p><!--/ Abstract__block -->\u0000<h3>Design/methodology/approach</h3>\u0000<p>Samples were subjected to accelerated corrosion for 136 days via salt spray tests to simulate the natural conditions of marine environment and consequently accelerate the experiments. Subsequently, the samples were examined using various test methods, such as EDS, scanning electron microscopy (SEM), X-ray diffraction (XRD) and electrochemical impedance spectroscopy (EIS), and the obtained data were analysed.</p><!--/ Abstract__block -->\u0000<h3>Findings</h3>\u0000<p>Galvalume coatings comprised interdigitated zinc (Zn)-rich and dendritic Al-rich phases. Corrosion was observed to begin with a Zn-rich phase. The primary components of the corrosion product film were Al<sub>2</sub>O<sub>3</sub> and Zn<sub>5</sub>(OH)<sub>8</sub>Cl<sub>2</sub>·H<sub>2</sub>O. It was confirmed that the role of Al was to form a dense protective film, thereby successfully blocking the entry of corrosive media and protecting the iron substrate.</p><!--/ Abstract__block -->\u0000<h3>Originality/value</h3>\u0000<p>This study provides a clearer understanding of the corrosion mechanism and kinetics of galvalume coatings in a simulated marine environment. In addition, the role of Al, which is rarely mentioned in the literature, was investigated.</p><!--/ Abstract__block -->","PeriodicalId":8217,"journal":{"name":"Anti-corrosion Methods and Materials","volume":"23 6","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139910040","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":"Study on the structure and corrosion resistance of MoS2/MgO micro-arc oxidation composite ceramic coating on the surface of ZK60 magnesium alloy","authors":"Xiaowen Chen, Wanlin Xie, Song Tang, Meng Zhang, Hao Song, Qingzheng Ran, Defen Zhang","doi":"10.1108/acmm-11-2023-2923","DOIUrl":"https://doi.org/10.1108/acmm-11-2023-2923","url":null,"abstract":"<h3>Purpose</h3>\u0000<p>The purpose of this study is to examine the impact of MoS<sub>2</sub> on the microstructure and characteristics of micro-arc oxidized (MAO) ceramic coatings created on ZK60 magnesium alloy through the addition of varying concentrations of MoS<sub>2</sub> particles to the electrolyte, aiming to enhance the corrosion resistance of magnesium alloy.</p><!--/ Abstract__block -->\u0000<h3>Design/methodology/approach</h3>\u0000<p>The surface morphology, roughness and phase composition of the coatings were analyzed using scanning electron microscopy, a hand-held roughness tester and an X-ray diffractometer, respectively, and the corrosion resistance of the MAO coatings prepared by the addition of different contents of MoS<sub>2</sub> particles was tested and analyzed using an electrochemical workstation.</p><!--/ Abstract__block -->\u0000<h3>Findings</h3>\u0000<p>The results demonstrate that MoS<sub>2</sub>/MgO composite coatings have been successfully prepared on the surface of magnesium alloys through micro-arc oxidation. Furthermore, the corrosion resistance of the ZK60 magnesium alloy prepared with the addition of 1.0 g/L MoS<sub>2</sub> was the best compared to the other samples.</p><!--/ Abstract__block -->\u0000<h3>Originality/value</h3>\u0000<p>MoS<sub>2</sub> particles were able to penetrate the coatings successfully during the micro-arc oxidation process, acting as a barrier in the micropores to prevent the corrosion medium from touching the surface, thus improving the corrosion resistance of the sample. The electrochemical workstation was used to study the corrosion resistance of the MoS<sub>2</sub>/MAO coating on the ZK60 magnesium alloy.</p><!--/ Abstract__block -->","PeriodicalId":8217,"journal":{"name":"Anti-corrosion Methods and Materials","volume":"144 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139765556","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":"Electrochemical migration behavior between Cu and Ag under a thin electrolyte layer containing chloride","authors":"Lu Luo, Kang Qi, Hualiang Huang","doi":"10.1108/acmm-11-2023-2924","DOIUrl":"https://doi.org/10.1108/acmm-11-2023-2924","url":null,"abstract":"<h3>Purpose</h3>\u0000<p>The purpose of this paper is to investigate the effects of chloride ion concentration and applied bias voltage on the electrochemical migration (ECM) behavior between Cu and Ag under an NaCl thin electrolyte layer (TEL).</p><!--/ Abstract__block -->\u0000<h3>Design/methodology/approach</h3>\u0000<p>A self-made experimental setup for the ECM behavior between Cu and Ag was designed. An HD video measurement microscopy was used to observe the typical dendrite/corrosion morphology and pH distribution. Short-circuit time (SCT), short-circuit current density and the influence of the galvanic effect between Cu and Ag on their ECM behavior were studied by electrochemical tests. The surface morphology and composition of dendrite were characterized by FESEM/EDS.</p><!--/ Abstract__block -->\u0000<h3>Findings</h3>\u0000<p>The SCT increased with increasing NaCl concentration but decreased with increasing applied bias voltage, and the SCT between Cu and Ag was less than that between Cu and Cu because their galvanic effect accelerated the dissolution and migration of Cu. When NaCl concentration was less than or equal to 6 mmol/L, cedar-like dendrite was formed, whereas no dendrite formed and only precipitation occurred at high chloride ion concentration (100 mmol/L). The composition of the dendrite between Cu and Ag was copper.</p><!--/ Abstract__block -->\u0000<h3>Research limitations/implications</h3>\u0000<p>The significance of this study is to clarify the ECM failure mechanism of printed circuit board (PCB) with an immersion silver surface finish (PCB-ImAg).</p><!--/ Abstract__block -->\u0000<h3>Practical implications</h3>\u0000<p>This study provides a basic theoretical basis for the selection of protective measures and metal coatings for PCB.</p><!--/ Abstract__block -->\u0000<h3>Social implications</h3>\u0000<p>The social implication of this study is to predict the service life of PCB.</p><!--/ Abstract__block -->\u0000<h3>Originality/value</h3>\u0000<p>The ECM behavior of dissimilar metals under a TEL was investigated, the influence of the galvanic effect between them on their ECM was discussed, and the SCT increased with increasing NaCl concentration.</p><!--/ Abstract__block -->","PeriodicalId":8217,"journal":{"name":"Anti-corrosion Methods and Materials","volume":"115 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139765515","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}
Shuangjiu Deng, Chang Li, Xing Han, Menghui Yu, Han Sun
{"title":"Study on numerical calculation method of corrosion mechanism for Co-12 laser cladding layer","authors":"Shuangjiu Deng, Chang Li, Xing Han, Menghui Yu, Han Sun","doi":"10.1108/acmm-03-2023-2766","DOIUrl":"https://doi.org/10.1108/acmm-03-2023-2766","url":null,"abstract":"<h3>Purpose</h3>\u0000<p>The restoration and strengthening of QT600 is an industry bottleneck challenge. The Co-12 cladding layer has great wear and corrosion resistance. The purpose of this paper is to quantitatively reveal the transient evolution law of the corrosion process of Co-12 cladding layer on QT600 surface.</p><!--/ Abstract__block -->\u0000<h3>Design/methodology/approach</h3>\u0000<p>In this paper, a three-dimensional numerical model of the corrosion process of Co-12 cladding layer by QT600 laser cladding is established. The interaction between pitting pits and corrosion medium is considered to reveal the transient evolution of ion concentration, electrode potential, pH and corrosion rate at different locations.</p><!--/ Abstract__block -->\u0000<h3>Findings</h3>\u0000<p>The calculation shows that the ion concentration in pitting pit changes Cl<sup>−</sup>>Co<sup>2+</sup>>Na<sup>+</sup>, pH value decreases from top to bottom and corrosion rate at bottom is greater than that at top. The electrochemical corrosion test of Co-12 cladding layer was carried out. It is shown that the current density of QT600 increases by an order of magnitude compared to the Co-12 cladding layer, and the corrosion rate is 4.862 times higher than that of the cladding layer.</p><!--/ Abstract__block -->\u0000<h3>Originality/value</h3>\u0000<p>The results show that Co-12 cladding layer has great corrosion resistance, which provides an effective way for QT600 protection.</p><!--/ Abstract__block -->","PeriodicalId":8217,"journal":{"name":"Anti-corrosion Methods and Materials","volume":"75 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139667596","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":"Review on the application of stainless-clad bimetallic steel in the marine environment","authors":"Dongsheng Wang, Xiaohan Sun, Yingchang Jiang, Xueting Chang, Xin Yonglei","doi":"10.1108/acmm-06-2023-2832","DOIUrl":"https://doi.org/10.1108/acmm-06-2023-2832","url":null,"abstract":"<h3>Purpose</h3>\u0000<p>Stainless-clad bimetallic steels (SCBS) are widely investigated in some extremely environmental applications areas, such as polar sailing area and tropical oil and gas platforms areas, because of their excellent anticorrosion performance and relatively lower production costs. However, the properties of SCBS, including the mechanical strength, weldability and the anticorrosion behavior, have a direct relation with the manufacturing process and can affect their practical applications. This paper aims to review the application and the properties requirements of SCBS in marine environments to promote the application of this new material in more fields.</p><!--/ Abstract__block -->\u0000<h3>Design/methodology/approach</h3>\u0000<p>In this paper, the manufacturing process, welding and corrosion-resistant properties of SCBS were introduced systematically by reviewing the related literatures, and some results of the authors’ research group were also introduced briefly.</p><!--/ Abstract__block -->\u0000<h3>Findings</h3>\u0000<p>Different preparation methods, such as rolling composite, casting rolling composite, explosive composite, laser cladding and plasma arc cladding, as well as the process parameters, including the vacuum degree, rolling temperature, rolling reduction ratio, volume ratios of liquid to solid, explosive ratio and the heat treatment, influenced a lot on the properties of the SCBS through changing the interface microstructures. Otherwise, the variations in rolling temperature, pass, reduction and the grain size of clad steel also brought the dissimilarities of the mechanical properties, microhardness, bonding strength and toughness. Another two new processes, clad teeming method and interlayer explosive welding, deserve more attention because of their excellent microstructure control ability. The superior corrosion resistance of SCBS can alleviate the corrosion problem in the marine environment and prolong the service life of the equipment, but the phenomenon of galvanic corrosion should be noted as much as possible. The high dilution rate, welding process specifications and heat treatment can weaken the intergranular corrosion resistance in the weld area.</p><!--/ Abstract__block -->\u0000<h3>Originality/value</h3>\u0000<p>This paper summarizes the application of SCBS in marine environments and provides an overview and reference for the research of stainless-clad bimetallic steel.</p><!--/ Abstract__block -->","PeriodicalId":8217,"journal":{"name":"Anti-corrosion Methods and Materials","volume":"8 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139667774","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":"Effects of salt spray duration on the fretting corrosion behavior of the Inconel 690 alloy tubes","authors":"Meigui Yin, Lei Zhang, Longxiang Huang","doi":"10.1108/acmm-11-2023-2919","DOIUrl":"https://doi.org/10.1108/acmm-11-2023-2919","url":null,"abstract":"<h3>Purpose</h3>\u0000<p>The purpose of this paper is to study the effect of surface salt spray duration on the fretting wear and electrochemical corrosion behaviors of Inconel 690 alloy.</p><!--/ Abstract__block -->\u0000<h3>Design/methodology/approach</h3>\u0000<p>A high-temperature steam generator was applied to salt spray test samples, a fretting wear rig was used to realize the damage behavior tests, an electrochemical workstation was applied to analysis the changes of each sample’s corrosion dynamic response before and after fretting wear.</p><!--/ Abstract__block -->\u0000<h3>Findings</h3>\u0000<p>The thickness of the oxide film that formed on sample surface was increased with the salt spray duration, and somewhat it could act as lubrication during the fretting wear process; however, the corrosive chloride would accelerate the fretting mechanical damage behavior.</p><!--/ Abstract__block -->\u0000<h3>Originality/value</h3>\u0000<p>In a salt steam spray condition, the fretting tribo-corrosion behaviors of Inconel 690 alloy surface was studied.</p><!--/ Abstract__block -->","PeriodicalId":8217,"journal":{"name":"Anti-corrosion Methods and Materials","volume":"15 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139586036","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}
Manman Li, Qing Bao, Sumin Lei, Linlin Xing, Shu Gai
{"title":"Study on the impact of soil environment organic substances on the ageing of urban PE gas pipes in service","authors":"Manman Li, Qing Bao, Sumin Lei, Linlin Xing, Shu Gai","doi":"10.1108/acmm-11-2023-2916","DOIUrl":"https://doi.org/10.1108/acmm-11-2023-2916","url":null,"abstract":"<h3>Purpose</h3>\u0000<p>The service environment of urban polyethylene (PE) pipes has a crucial influence on their long-term safety and performance. Based on the application and structural performance analysis of PE pipe failure cases, this study aims to investigate the impact of organic substances in the soil on the aging behavior of PE pipes by designing organic solutions with different concentrations, which are based on the composition of organic substances in the soil environment, and periodic immersion tests.</p><!--/ Abstract__block -->\u0000<h3>Design/methodology/approach</h3>\u0000<p>Soil samples in the vicinity of the failed pipes were analyzed by gas chromatography-mass spectrometry, sensitive organic substances were screened and soaking solutions of different concentrations were designed. After the soaking test, the PE pipe samples were analyzed using differential scanning calorimetry, Fourier-transform infrared spectroscopy and other testing methods.</p><!--/ Abstract__block -->\u0000<h3>Findings</h3>\u0000<p>The performance difference between the outer surface and the middle of the cross section of PE pipes highlights the influence of the soil service environment on their aging. Different organic solutions can have varying impacts on the aging behavior of PE pipes when immersed. For instance, when exposed to amine organic solutions, PE pipes may have an increased weight and decreased material yield strength, although there is no reduction in their thermal or oxygen stability. On the contrary, when subjected to ether organic solutions, the surface of PE pipe specimens may be affected, leading to a reduction in material fracture elongation and a decrease in their thermal and oxygen stability. Furthermore, immersion in either amine or ether organic solutions may result in the production of hydroxyl and other aging groups on the surface of the material.</p><!--/ Abstract__block -->\u0000<h3>Originality/value</h3>\u0000<p>Understanding the potential impact of organic substances in the soil environment on the aging of PE pipe ensures the long-term performance and safety of urban PE pipe. This research approach will provide valuable insights into improving the durability and reliability of urban PE pipes in soil environments.</p><!--/ Abstract__block -->","PeriodicalId":8217,"journal":{"name":"Anti-corrosion Methods and Materials","volume":"1 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139556307","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}