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The role of microbes in the inhibition of the atmospheric corrosion of steel caused by air pollutants 微生物在抑制空气污染物对钢的大气腐蚀中的作用
IF 3.2 4区 材料科学 Q2 Chemical Engineering Pub Date : 2023-08-10 DOI: 10.1515/corrrev-2023-0032
T. A. Oshin, B. Fakinle, O. Oyewole
Abstract Due to the presence of corrosive contaminants in the air, metals naturally corrode when exposed to the environment. Air pollution, in conjunction with climate conditions, may significantly deteriorate outdoor materials, especially metals and hence, the need for corrosion control. Using inhibitors is a powerful strategy that is frequently employed for corrosion prevention and control. Chemical inhibitors are often used. However, due to their low effectiveness and stringent environmental regulations, the majority of chemical corrosion inhibition techniques are becoming less desirable. For this reason, there is an increasing interest in and focus on biological inhibition approaches, which most recently have included the use of microbes. Microbiologically-influenced corrosion inhibition (MICI) is apparently far more complex than traditional corrosion inhibition procedures. A current overview of the mechanisms that have been used or may be efficient for MICI technologies is important in order to facilitate the advancement of MICI and its practical industrial applications, especially for atmospheric corrosion caused by air pollutants, for which there is little information in the reviewed literature. Therefore, this review addresses the role of microbes, like Pseudomonas putida, in the inhibition of atmospheric corrosion of metals and brings the reader up-to-date on the few literatures existing on the subject. The review describes and characterizes MICI for atmospheric corrosion as a developing field still in need of enthusiastic researchers to further investigate the area in order to establish useful methodologies, procedures, and technologies for later adoption in industrial terrains and applications.
由于空气中存在腐蚀性污染物,金属暴露在环境中会自然腐蚀。空气污染与气候条件相结合,可能会显著恶化室外材料,特别是金属,因此需要腐蚀控制。使用抑制剂是一种强大的策略,经常用于防腐蚀和控制。通常使用化学抑制剂。然而,由于其低效率和严格的环境法规,大多数化学缓蚀技术变得不那么理想。由于这个原因,人们对生物抑制方法的兴趣和关注日益增加,其中最近包括使用微生物。微生物影响缓蚀(MICI)显然比传统的缓蚀方法复杂得多。为了促进MICI技术的发展及其实际工业应用,特别是在空气污染物引起的大气腐蚀方面,目前对MICI技术已经使用或可能有效的机制进行概述是很重要的,这方面的资料在所审查的文献中很少。因此,本文综述了微生物的作用,如恶臭假单胞菌,在抑制金属的大气腐蚀中,并为读者带来了最新的关于这一主题的少数文献。这篇综述描述和描述了大气腐蚀MICI作为一个发展中的领域,仍然需要热情的研究人员进一步研究这个领域,以便建立有用的方法、程序和技术,供以后在工业领域和应用中采用。
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引用次数: 0
Frontmatter 头版头条
4区 材料科学 Q2 Chemical Engineering Pub Date : 2023-08-01 DOI: 10.1515/corrrev-2023-frontmatter4
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引用次数: 0
Erratum to: Long-term state-driven atmospheric corrosion prediction of carbon steel in different corrosivity categories considering environmental effects 考虑环境影响的不同腐蚀性类别碳钢的长期状态驱动大气腐蚀预测
IF 3.2 4区 材料科学 Q2 Chemical Engineering Pub Date : 2023-07-26 DOI: 10.1515/corrrev-2023-0090
Ziguang Ji, Xiaobing Ma, Yikun Cai, Li Yang, K. Zhou
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引用次数: 0
The role of acid–base interactions in the pitting corrosion of aluminum: a review 酸碱相互作用在铝点蚀中的作用综述
IF 3.2 4区 材料科学 Q2 Chemical Engineering Pub Date : 2023-07-03 DOI: 10.1515/corrrev-2022-0077
M. Petrunin, L. Maksaeva, T. Yurasova
Abstract The review describes an electrode kinetic model of aluminum pitting nucleation taking into account the charge of the metal surface, the adsorption of chloride ions on the oxide surface, their penetration through the oxide film with the help of oxygen vacancies, and the dissolution of the underlying substrate with the initiation of pitting corrosion at the metal/oxide interface. It is shown that the critical pitting potential is a function of the potential of a thin layer of aluminum surface covered by oxide and the value of the pitting potential of a binary surface alloying is related to the isoelectric point of the alloying element oxide in the binary alloy. An electrode kinetic model of pitting initiation is described, which was used to explain the effect of surface alloying on the pitting initiation on binary alloys. A method for changing the surface charge by forming foreign surface organosilicon nanolayers bearing both negatively and positively charged groups was proposed. It has been established that four characteristics (q, Ψ1-potential, Epit and the tendency of aluminum to depassivate) depend on the nature of ion-exchange groups, the degree of their acid dissociation, and the ion-chemical interaction with activator ions.
摘要本文描述了铝点蚀成核的电极动力学模型,该模型考虑了金属表面的电荷、氯离子在氧化物表面的吸附、氯离子借助氧空位穿透氧化膜以及金属/氧化物界面处引发点蚀的基体溶解等因素。结果表明,临界点蚀电位是氧化铝覆盖铝表面薄层电位的函数,二元表面合金化的点蚀电位值与二元合金中合金元素氧化物的等电点有关。建立了一种点蚀起爆的电极动力学模型,用以解释表面合金化对二元合金点蚀起爆的影响。提出了一种通过形成带有负电荷和正电荷基团的外来表面有机硅纳米层来改变表面电荷的方法。确定了四个特征(q, Ψ1-potential, Epit和铝的脱钝化倾向)取决于离子交换基团的性质,它们的酸解离程度以及与活化离子的离子化学相互作用。
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引用次数: 1
Corrosion behavior of GH3535 alloy in KCl–MgCl2 eutectic salts purified with magnesium GH3535合金在镁净化KCl–MgCl2共晶盐中的腐蚀行为
IF 3.2 4区 材料科学 Q2 Chemical Engineering Pub Date : 2023-06-26 DOI: 10.1515/corrrev-2022-0058
Na Li, Qi Liu, Huiqin Yin, Changjian Ling, Yang Wang, Zhong Tang
Abstract The corrosion behavior of GH3535 alloys in KCl–MgCl2 eutectic salts with or without magnesium (Mg) was investigated using the static immersion tests. The effect of purification treatment on the corrosion of GH3535 specimens was also evaluated by the different analysis. The KCl–MgCl2 salts purified with Mg and reducing service temperature can slow down the corrosion rate of GH3535 specimens. Infrared spectra results showed that purification treatment reduced the content of crystal water in the KCl–MgCl2 salts. The difference of hydrate content in KCl–MgCl2 salts and the diffusion rate of Cr in alloy are the main reasons for the change of GH3535 specimens corrosion rate.
摘要:采用静态浸渍试验研究了GH3535合金在含镁和不含镁的KCl-MgCl2共晶盐中的腐蚀行为。通过不同的分析,评价了净化处理对GH3535试样腐蚀的影响。Mg净化后的KCl-MgCl2盐和降低使用温度可以减缓GH3535试样的腐蚀速率。红外光谱结果表明,净化处理降低了KCl-MgCl2盐中结晶水的含量。KCl-MgCl2盐中水合物含量的差异和Cr在合金中的扩散速率是GH3535试样腐蚀速率变化的主要原因。
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引用次数: 0
Frontmatter 头版头条
4区 材料科学 Q2 Chemical Engineering Pub Date : 2023-06-01 DOI: 10.1515/corrrev-2023-frontmatter3
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引用次数: 0
Using electrochemical testing and modeling to assess the efficiency of a water-soluble inhibitor on the corrosion of 6061Al-15 % (v) SiC (p) composite 使用电化学测试和建模来评估水溶性抑制剂对6061Al-15腐蚀的效率 % (v) SiC(p)复合材料
IF 3.2 4区 材料科学 Q2 Chemical Engineering Pub Date : 2023-05-19 DOI: 10.1515/corrrev-2022-0078
Maithili Krishnananda, P. Shetty, P. Kumari, Sneha Kagatikar
Abstract The corrosion behaviour of 6061Al-15 % (v) SiC (P) composite was investigated in a 0.5 M HCl medium using electrochemical techniques. A water-soluble inhibitor, N-(1-morpholinobenzyl) semicarbazide (NMSc), was synthesised to test its corrosion inhibition activity on 6061Al-15 % (v) SiC (P) composite. The inhibitor showed cathodic-type behaviour and 95.42 % inhibition efficiency at 2.56 mM concentration and 303 K temperature. The thermodynamic results revealed the inhibitor’s physisorption, which followed Langmuir’s isotherm model. A drastic reduction in corrosion current density in the inhibited medium indicates that the inhibitor effectively controls the deterioration of the composite in the HCl medium. A significant rise in polarisation resistance on increasing inhibitor concentration offers greater resistance for the charge transfer process, ensuring better control over the composite corrosion. The surface analysis by scanning electron microscopy (SEM) and atomic force microscopy (AFM) confirms the inhibitor film formation on the composite. The quantum chemical theoretical calculations supported the electrochemical results.
摘要6061Al-15的腐蚀行为 % (v) 在0.5 M HCl介质。合成了一种水溶性缓蚀剂N-(1-吗啉基)氨基脲(NMSc),测试了其对6061Al-15的缓蚀活性 % (v) SiC(P)复合材料。抑制剂表现出阴极型行为,95.42 % 2.56时的抑制效率 mM浓度和303 K温度。热力学结果表明,抑制剂的物理吸附符合Langmuir等温线模型。被抑制介质中腐蚀电流密度的急剧降低表明抑制剂有效地控制了复合材料在HCl介质中的劣化。随着抑制剂浓度的增加,极化电阻的显著增加为电荷转移过程提供了更大的电阻,确保了对复合材料腐蚀的更好控制。通过扫描电子显微镜(SEM)和原子力显微镜(AFM)进行的表面分析证实了复合材料上形成了抑制剂膜。量子化学理论计算支持了电化学结果。
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引用次数: 0
Hairy bamboo leaf extract as an eco-friendly corrosion inhibitor for L245N steel in CO2-saturated oilfield produced water 毛竹叶提取物在饱和co2油田采出水中对L245N钢的环保型缓蚀剂研究
IF 3.2 4区 材料科学 Q2 Chemical Engineering Pub Date : 2023-05-16 DOI: 10.1515/corrrev-2022-0099
San He, Shiqi Xue, Huilan Xu, Bin Li, Jian-Feng Li
Abstract The inhibition of the corrosion of L245N steel in the CO2-saturated oilfield produced water by the extract of hairy bamboo leaf extract (BLE) has been investigated using electrochemical experiment (EIS), weight loss test, Fourier transform infrared spectroscopy (FTIR), molecular dynamics simulation (MD), and scanning electron microscopy (SEM). The results showed adsorption of BLE on the surface of L245N steel conforms to the Langmuir isothermal adsorption. Electrochemical measurements indicated the maximum inhibition efficiency of 98.76 % at 45 °C and 4 (%v/v). FTIR analysis showed that the BLE contains functional moieties such as O–H, N–H, C=O, C=C, C–N, C–O, and orientin as the effective compound. SEM illustrated that with the addition of BLE, the corrosion of L245N metal is significantly reduced. MD simulation showed that BLE molecules tend to adsorb on the Fe surface, forming an inhibitor film.
摘要采用电化学实验(EIS)、失重试验、傅里叶变换红外光谱(FTIR)、分子动力学模拟(MD)和扫描电镜(SEM)等方法研究毛竹叶提取物(BLE)对L245N钢在饱和co2油田采出水中的缓蚀作用。结果表明:BLE在L245N钢表面的吸附符合Langmuir等温吸附;电化学测试表明,在45 °C和4 (%v/v)条件下,最大缓蚀率为98.76 %。FTIR分析表明,BLE中含有O - h、N-H、C=O、C=C、C - n、C - O等功能基团和有效化合物oritin。SEM结果表明,添加BLE后,L245N金属的腐蚀明显降低。MD模拟表明,BLE分子倾向于吸附在Fe表面,形成一层抑制膜。
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引用次数: 0
The effect of Pd and Ni coatings on hydrogen permeation experiments of as-quenched martensitic steel Pd和Ni涂层对淬火马氏体钢渗氢实验的影响
IF 3.2 4区 材料科学 Q2 Chemical Engineering Pub Date : 2023-05-15 DOI: 10.1515/corrrev-2022-0118
R. Latypova, T. Nyo, O. Seppälä, Kasper Hahtonen, H. Hänninen, J. Kömi, S. Pallaspuro
Abstract Hydrogen permeation technique is a widely used testing method for the determination of hydrogen diffusion coefficient (D), which is an important parameter considering hydrogen embrittlement. A palladium (Pd) or nickel (Ni) coating is often utilised on the hydrogen detection side of the test specimens. Here, we investigate the effect of Pd and Ni coatings on hydrogen diffusion in a martensitic 500 HBW hardness low-alloy steel in the thickness range of 0.5 – 0.8 mm using a refined successive transient method and compare against an uncoated reference specimen. Both coatings yield similar average D values (6 – 6.6 × 10−7 cm2/s), but the best repeatability is achieved with Pd coating. With Ni coating, D values decrease with the increasing specimen thickness, which is partly caused by a slower hydrogen diffusion in Ni, and therefore a concentration gradient at the specimen-coating interface. The uncoated specimen has a poor transient fit, and significantly lower D (2.1 × 10−7 cm2/s) due to surface oxidation. With both coatings, the steepness of the last decay transient was highly affected by specimen thickness, and therefore the density of reversible hydrogen traps is only comparable for similar thicknesses.
摘要氢渗透技术是测定氢扩散系数(D)的一种广泛使用的测试方法,氢扩散系数是考虑氢脆的一个重要参数。钯(Pd)或镍(Ni)涂层通常用于试样的氢检测侧。在这里,我们研究了Pd和Ni涂层对马氏体500中氢扩散的影响 HBW硬度低合金钢,厚度范围为0.5–0.8 mm,并与未涂覆的参考样品进行比较。两种涂层的平均D值相似(6–6.6×10−7 cm2/s),但是用Pd涂层实现了最佳的可重复性。对于Ni涂层,D值随着试样厚度的增加而减小,这在一定程度上是由Ni中较慢的氢扩散引起的,因此是由试样-涂层界面处的浓度梯度引起的。未涂覆试样的瞬态拟合较差,且D明显较低(2.1×10−7 cm2/s)。对于这两种涂层,最后一次衰变瞬态的陡度在很大程度上受到样品厚度的影响,因此可逆氢陷阱的密度仅在类似厚度下可比较。
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引用次数: 1
Effect of surface machining on the environmentally-assisted cracking of Alloy 182 and 316L stainless steel in light water reactor environments: results of the collaborative project MEACTOS 表面加工对轻水反应堆环境中182和316L合金不锈钢环境辅助开裂的影响:MEACTOS合作项目的结果
IF 3.2 4区 材料科学 Q2 Chemical Engineering Pub Date : 2023-05-15 DOI: 10.1515/corrrev-2022-0121
M. Zimina, S. Ritter, B. Zajec, M. Vankeerberghen, L. Volpe, A. Hojná, R. Bosch, F. Scenini, Z. Que, A. Sáez-Maderuelo, P. Meadows, Michael Grimm, M. Herbst, A. Legat, A. Maurotto, R. Novotný, H. Seifert
Abstract The main objective of the EU-funded project mitigating environmentally-assisted cracking through optimisation of surface condition (MEACTOS) was to gain knowledge on the ability of different surface machining procedures to mitigate environmentally-assisted cracking (EAC) in typical light water reactor structural materials and environments. Surfaces of cold-worked (CW) type 316L austenitic stainless steel and nickel-based weld metal Alloy 182 flat tapered tensile specimens were machined using different processes. EAC initiation susceptibility of these specimens was evaluated using constant extension rate tensile (CERT) tests under simulated boiling water reactor (BWR) and pressurized water reactor (PWR) conditions and assessed using constant load experiments. More than a hundred tests were performed covering about 10 years of autoclave testing time. Only minor or no measurable improvements in EAC initiation susceptibility as a function of surface treatments (grinding or advanced machining) compared to the standard industrial face milling were demonstrated. In most cases, the stress thresholds for EAC initiation determined in constant load tests confirmed the trend obtained from CERT tests. This paper summarises the most important results and conclusions concerning the EAC initiation behaviour for the CW 316L and Alloy 182 under reducing PWR and oxidizing BWR conditions.
摘要欧盟资助的通过表面条件优化减轻环境辅助开裂项目(MEACTOS)的主要目标是了解不同表面加工程序减轻典型轻水反应堆结构材料和环境中环境辅助开裂的能力。使用不同的工艺对冷加工(CW)型316L奥氏体不锈钢和镍基焊接金属合金182扁平锥形拉伸试样的表面进行了机加工。在模拟沸水反应堆(BWR)和压水反应堆(PWR)条件下,使用恒定拉伸速率拉伸(CERT)试验评估这些试样的EAC引发敏感性,并使用恒定载荷实验评估。进行了一百多次测试,覆盖了大约10年的高压釜测试时间。与标准工业面铣相比,表面处理(磨削或高级机械加工)对EAC引发敏感性的改善很小或没有可测量的改善。在大多数情况下,在恒载试验中确定的EAC启动的应力阈值证实了CERT试验得出的趋势。本文总结了CW 316L和合金182在还原压水堆和氧化沸水堆条件下EAC引发行为的最重要结果和结论。
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引用次数: 1
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Corrosion Reviews
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