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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 Q3 ELECTROCHEMISTRY Pub Date : 2023-01-10 DOI: 10.1515/corrrev-2022-0016
Ziguang Ji, Xiaobing Ma, Yikun Cai, Li Yang, K. Zhou
Abstract This study investigates an environment-centered, state-driven corrosion prognosis framework to predict the long-term atmospheric corrosion loss of metal materials, and this paper takes carbon steel as an example to show the establishment process of the framework. Unlike traditional power-linear prediction models that seldomly consider environmental impacts, the proposed model quantitatively establishes the correlations between corrosion loss and dynamic atmospheric environmental factors. A comprehensive power-linear function model integrating multiple atmospheric environmental factors is constructed, following the corrosion kinetics robustness. Under the proposed framework, the steady-state start time is evaluated, followed by the long-term corrosion loss prediction under different corrosivity categories and test sites. The applicability is justified via a case study of long-term field exposure tests of metal materials in China, as well as the experimental results of the ISO CORRAG program. By comparing with the traditional power model and ISO model, the experimental results demonstrate the capability and effectiveness of the proposed prognosis methodology in acquiring accurate corrosion state information and corrosion loss prediction results with less input corrosion information.
摘要本文研究了一个以环境为中心、状态驱动的腐蚀预测框架,用于预测金属材料的长期大气腐蚀损失,并以碳钢为例展示了该框架的建立过程。与传统的功率线性预测模型很少考虑环境影响不同,该模型定量地建立了腐蚀损失与动态大气环境因素之间的相关性。根据腐蚀动力学的稳健性,建立了一个综合考虑多种大气环境因素的幂线性函数模型。在所提出的框架下,评估了稳态启动时间,然后预测了不同腐蚀性类别和试验场地下的长期腐蚀损失。通过对中国金属材料长期野外暴露试验的案例研究,以及ISO CORRAG项目的实验结果,证明了其适用性。通过与传统的功率模型和ISO模型的比较,实验结果证明了所提出的预测方法在较少输入腐蚀信息的情况下获得准确的腐蚀状态信息和腐蚀损失预测结果的能力和有效性。
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引用次数: 0
Molten salt corrosion of candidate materials in LiCl–KCl eutectic for pyrochemical reprocessing applications: a review 热化学后处理用LiCl-KCl共晶材料熔盐腐蚀研究进展
IF 3.2 4区 材料科学 Q3 ELECTROCHEMISTRY Pub Date : 2023-01-09 DOI: 10.1515/corrrev-2022-0044
Jagadeeswara Rao Chowdari, S. Ningshen
Abstract High temperature molten salt corrosion is of utmost importance for selecting and qualifying structural materials for critical applications. Pyrochemical reprocessing of spent metallic fuels of the future fast breeder reactors in India is widely considered. One of the main processes of pyrochemical reprocessing is electrorefining. Electrorefining is generally conducted in LiCl–KCl molten salt at 500–600 °C under an inert atmosphere. Research groups worldwide are involved in developing corrosion resistant materials and investigating the corrosion behaviour of various structural materials for LiCl–KCl applications under different environments. A wide variety of materials, including metals, alloys, intermetallics, single crystals, glass and ceramics, have been investigated in molten LiCl–KCl salt. This review focuses mainly on the corrosion assessment of materials for LiCl–KCl application; a complete literature review with emphasis on the corrosion issues of materials is provided. This paper reviews the corrosion issues of metals and alloys in molten salts and the selection criteria of corrosion-resistant materials for molten salts. Understanding the molten salt corrosion mechanisms and future research scope are also discussed.
摘要高温熔盐腐蚀对于关键应用的结构材料的选择和鉴定至关重要。印度广泛考虑对未来快增殖反应堆的废金属燃料进行高温化学再处理。热化学后处理的主要工艺之一是电解精炼。电解精炼通常在500–600°C的LiCl–KCl熔盐中,在惰性气氛下进行。世界各地的研究小组致力于开发耐腐蚀材料,并研究各种结构材料在不同环境下对LiCl–KCl应用的腐蚀行为。在熔融LiCl–KCl盐中研究了多种材料,包括金属、合金、金属间化合物、单晶、玻璃和陶瓷。这篇综述主要集中在LiCl–KCl应用材料的腐蚀评估;提供了一个完整的文献综述,重点是材料的腐蚀问题。本文综述了金属和合金在熔盐中的腐蚀问题以及熔盐用耐腐蚀材料的选择标准。对熔盐腐蚀机理的认识和未来的研究范围也进行了讨论。
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引用次数: 0
Comparison of the corrosion resistances of chromium-passivated and cerium-passivated Zn/NdFeB magnets 铬钝化与铈钝化Zn/NdFeB磁体耐蚀性能的比较
IF 3.2 4区 材料科学 Q3 ELECTROCHEMISTRY Pub Date : 2023-01-09 DOI: 10.1515/corrrev-2022-0014
Pengjie Zhang, Jing-Bo Chen, Hongyi Yang, Guangqing Xu, Jun Lv, J. Cui, Wei Sun, Bingshan Li, Dongmei Wang, Yucheng Wu
Abstract Chromium-free passivation of Zn coating on NdFeB magnets becomes a research hotspot due to the serious harm of chromium ions to the human body. Chromium-based and cerium-based passivation technologies are conducted on electroplating Zn/NdFeB respectively. Morphologies, elemental compositions and phase structures of the two passivated coatings are characterized by scanning electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy, respectively. The corrosion resistances of the two passivated specimens are compared by neutral salt spray test, accelerated aging test and electrochemical measurements. A complete and smooth passivation film can be obtained on the surface of Zn/NdFeB, filling the gaps and pores in Zn coating. Compared with un-passivated Zn/NdFeB, Zn(Ce)/NdFeB and Zn(Cr)/NdFeB possess excellent corrosion resistance. In comparison, Zn(Ce)/NdFeB possesses excellent anti-corrosion performance, increasing the red-rust appearing time from 288 to 432 h, which is still lower than that of Zn(Cr)/NdFeB (528 h). Therefore, the self-repair effect of cerium passivation technology during the corrosion process should be further studied to achieve the purpose of replacing chromium passivation technology.
摘要由于铬离子对人体的严重危害,钕铁硼磁体表面锌涂层的无铬钝化成为研究热点。分别对电镀Zn/NdFeB进行了铬基和铈基钝化工艺。用扫描电镜、x射线衍射和x射线光电子能谱对两种钝化膜的形貌、元素组成和相结构进行了表征。通过中性盐雾试验、加速老化试验和电化学测试对两种钝化试样的耐蚀性进行了比较。在锌/钕铁硼表面形成完整、光滑的钝化膜,填充了锌涂层中的空隙和孔隙。与未钝化的Zn/NdFeB相比,Zn(Ce)/NdFeB和Zn(Cr)/NdFeB具有优异的耐蚀性。相比之下,Zn(Ce)/NdFeB具有优异的防腐性能,其红锈出现时间从288 h增加到432 h,仍低于Zn(Cr)/NdFeB的528 h,因此,应进一步研究铈钝化技术在腐蚀过程中的自修复效果,以达到取代铬钝化技术的目的。
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引用次数: 0
Editorial changes at Corrosion Reviews 《腐蚀评论》的编辑变更
IF 3.2 4区 材料科学 Q3 ELECTROCHEMISTRY Pub Date : 2022-12-27 DOI: 10.1515/corrrev-2022-0117
G. Stöber
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引用次数: 0
An editorial transition 编辑转型
IF 3.2 4区 材料科学 Q3 ELECTROCHEMISTRY Pub Date : 2022-12-26 DOI: 10.1515/corrrev-2022-0107
R. B. Rebak
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引用次数: 0
Five decades spatial hazard maps of atmospheric corrosion predict the rate of deterioration of steel beams in different environments of India 50年大气腐蚀空间危害图预测了印度不同环境下钢梁的退化速度
IF 3.2 4区 材料科学 Q3 ELECTROCHEMISTRY Pub Date : 2022-12-09 DOI: 10.1515/corrrev-2022-0028
Vanapalli Naveen Kumar, Arjun Sil
Abstract Steel, an indispensable enduring metal used in all facets of life, contributes significantly to the global economy. Atmospheric corrosion is the inexorable natural degradation of alloys to ores in the presence of the atmosphere. The rate of deterioration is a decisive life factor of environmentally exposed steel, and it is necessary to trace its dynamics in different atmospheres at different exposure times. Spatial hazard corrosion maps for rural and urban conditions have been developed for over five decades to apprehend metal loss or corrosion rate dynamics in diverse conditions (PS11, PS21 and PS31) across the Indian subcontinent. The impact of cumulative hazards on Indian standard structural steels is interpreted to perceive sectional losses of beams in various environments for different zones. Sectional losses are greater in zone 5 of the PS31 environment and are significant in junior and lightweight beams, while heavy beams are relatively unaffected.
摘要钢铁是一种不可或缺的耐用金属,用于生活的各个方面,对全球经济做出了重大贡献。大气腐蚀是合金在大气中不可避免地自然降解为矿石。劣化率是环境暴露钢的决定性寿命因素,有必要在不同的暴露时间追踪其在不同大气中的动力学。50多年来,为了解印度次大陆不同条件(PS11、PS21和PS31)下的金属损失或腐蚀速率动态,已经开发了针对农村和城市条件的空间危害腐蚀图。累积危险对印度标准结构钢的影响被解释为感知不同区域不同环境中梁的截面损失。在PS31环境的5区中,截面损失更大,在初级和轻型梁中损失显著,而重型梁相对不受影响。
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引用次数: 0
Influence of Fe3+ on titanium corrosion in H2SO4 solutions without and with F− Fe3+对含和不含F−H2SO4溶液中钛腐蚀的影响
IF 3.2 4区 材料科学 Q3 ELECTROCHEMISTRY Pub Date : 2022-12-09 DOI: 10.1515/corrrev-2022-0006
Xin Xin Liu, M. Sakairi, Q. Liao
Abstract Influence of Fe3+ on the corrosion of titanium in H2SO4 solution without F− and with F− was investigated by electrochemical tests. The electrochemical test results showed that Fe3+ could significantly inhibit titanium corrosion in H2SO4 solution without F− and with F− by promoting the protective film formation on titanium. Titanium corrosion resistance (Rc) was positively related to the concentration of Fe3+ in H2SO4 without and with F−. A mechanism was proposed for Fe3+ inhibiting the corrosion of titanium in H2SO4 solution without and with F−.
通过电化学试验研究了Fe3+对钛在不含F−和含F−的H2SO4溶液中腐蚀的影响。电化学测试结果表明,Fe3+通过促进钛表面保护膜的形成,可以显著抑制钛在没有F−和有F−的H2SO4溶液中的腐蚀。钛的耐腐蚀性(Rc)与不含F−和含F−的H2SO4中Fe3+的浓度呈正相关。提出了Fe3+抑制钛在H2SO4溶液中腐蚀的机理。
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引用次数: 0
A sampling of environmental data, and its presentation, from a multi-role U.S. coast guard aircraft 从一架多用途美国海岸警卫队飞机上采集的环境数据样本及其演示
IF 3.2 4区 材料科学 Q3 ELECTROCHEMISTRY Pub Date : 2022-12-08 DOI: 10.1515/corrrev-2022-0038
J. Greer
Abstract This work presents a summary of environmental data from 3600 h of data collected during operations of a U.S. Coast Guard HC-130H aircraft performing its routine missions over a five-year period. The aircraft operated from multiple U.S. and deployed locations during the data collection period in the tropical and mid-latitudes at altitudes up to 8.5 km (28 kft). The aircraft collected pressure, temperature and humidity data during the period. No aerosol components were sampled (chlorides, sulfur dioxide, etc.). While there was no Time of Wetness sensor, the ISO 9223 definition is used for the present work as an estimator. These data are presented in the context of research into corrosion and environmental severity, or the potential conditions for it. About 40% of the data were collected while the aircraft was parked on the ground at various based and deployed locations. The purpose of this work is to present and summarize the flight data as an aid in providing some context for future research into environmental effects as they relate to both corrosion and environmentally assisted cracking (EAC) of aircraft structure, and perhaps for comparisons with existing or future datasets from aircraft having other missions. Prediction models need realistic, real-world inputs, such as those presented here. An example for the use of these data in corrosion prediction based on the ISO 9223 international standard is presented. Perhaps not surprisingly, these data show that, for this aircraft, conditions most favorable to corrosion occurred while the aircraft was on the ground.
摘要本工作总结了美国海岸警卫队HC-130H飞机在五年内执行例行任务期间收集的3600小时数据中的环境数据。在数据收集期间,该飞机在热带和中纬度地区的多个美国和部署地点运行,高度高达8.5公里(28 kft)。这架飞机在此期间收集了压力、温度和湿度数据。没有对气溶胶成分(氯化物、二氧化硫等)进行采样。虽然没有湿度传感器,但本工作使用ISO 9223定义作为估算值。这些数据是在对腐蚀和环境严重性或潜在条件进行研究的背景下提供的。大约40%的数据是在飞机停在不同基地和部署地点的地面上时收集的。这项工作的目的是展示和总结飞行数据,以帮助为未来的环境影响研究提供一些背景,因为它们与飞机结构的腐蚀和环境辅助开裂(EAC)有关,并可能与执行其他任务的飞机的现有或未来数据集进行比较。预测模型需要现实的、真实世界的输入,比如这里介绍的那些。介绍了在ISO 9223国际标准的腐蚀预测中使用这些数据的例子。也许并不奇怪,这些数据表明,对于这架飞机来说,最有利于腐蚀的条件发生在飞机在地面上的时候。
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引用次数: 0
Notch sensitivity and short cracks tolerance in a super 13Cr stainless steel under sulfide stress corrosion cracking conditions 硫化物应力腐蚀开裂条件下超13Cr不锈钢的缺口敏感性和短裂纹容限
IF 3.2 4区 材料科学 Q3 ELECTROCHEMISTRY Pub Date : 2022-11-25 DOI: 10.1515/corrrev-2022-0010
R. V. Landim, J. Castro, G. Altoé, M. Meggiolaro, J. Velasco
Abstract Notch sensitivity under sulfide stress corrosion cracking (SSC) conditions is quantified in this work, considering its tolerance to short cracks that start at notch tips and become non-propagating after growing for a short while. The considered material is an UNS S41426 super 13Cr5Ni2Mo martensitic stainless steel, frequently used in pipelines to transport aggressive fluids in offshore applications. Tolerance to short SCC cracks depends on the notch size and shape, on the stress gradient ahead of its tip, and on basic material resistances to crack initiation SSSC and growth KISSC inside the aggressive environment. The proposed notch-sensitivity model can be a powerful and economical alternative design tool to substitute traditional pass/non-pass criteria normally used to choose materials for SSC and similar environmentally assisted cracking (EAC) service conditions. This model is validated by testing the steel into an aqueous solution of 100 g/L of Cl−, pH 4.0, 25 kPa of H2S, and 75 kPa of CO2, at 23 ± 2 °C. After measuring SSSC (461 ± 23 MPa) and KISSC (36.9 ± 0.6 MPa√m), short crack tolerance predictions are verified on notched specimens loaded under a peak stress at their tips σmax = 0.95⋅SY >> SSSC, where SY = 826 MPa is the yield strength of the tested steel.
摘要本工作量化了硫化物应力腐蚀开裂(SSC)条件下的缺口敏感性,考虑到其对始于缺口尖端并在短时间增长后不再扩展的短裂纹的耐受性。所考虑的材料是UNS S41426超级13Cr5Ni2Mo马氏体不锈钢,经常用于海上应用中输送腐蚀性流体的管道。短SCC裂纹的公差取决于缺口尺寸和形状、尖端前方的应力梯度以及侵蚀环境中裂纹萌生SSSC和扩展KISSC的基本材料阻力。所提出的缺口敏感性模型可以成为一种强大而经济的替代设计工具,以取代通常用于选择SSC和类似环境辅助开裂(EAC)使用条件材料的传统合格/不合格标准。通过在23±2°C下将钢放入100 g/L Cl−、pH 4.0、25 kPa H2S和75 kPa CO2的水溶液中进行测试,验证了该模型。在测量SSSC(461±23 MPa)和KISSC(36.9±0.6 MPa√m)后,对缺口试样的短裂纹容限预测进行了验证,这些缺口试样在其尖端的峰值应力σmax=0.95·SY>>SSSC下加载,其中SY=826 MPa是被测钢的屈服强度。
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引用次数: 2
Research progress on the corrosion behavior of titanium alloys 钛合金腐蚀行为的研究进展
IF 3.2 4区 材料科学 Q3 ELECTROCHEMISTRY Pub Date : 2022-11-11 DOI: 10.1515/corrrev-2022-0031
Jiayu Yang, Yingwei Song, Kaihui Dong, E. Han
Abstract Titanium and its alloys show outstanding application prospects in many industrial fields due to their high specific strength, good corrosion resistance, high temperature resistance, etc. However, at present the corrosion failure of Ti alloys is attracted great attention with gradual increasing applications. The different localized corrosion forms are introduced in this review, including galvanic corrosion, crevice corrosion, pitting corrosion, hydrogen-induced cracking, stress corrosion crack, microbiological corrosion, corrosion fatigue, and corrosion wear. Among them, the corrosion failure caused by stress corrosion crack and hydrogen-induced cracking is the most serious, accounting for about 40–60% of the actual failure accidents. The effects of temperature, pressure, corrosive media and microstructure on the failure of titanium alloys are discussed. Particularly noteworthy, F− is extremely aggressive to the passive film of titanium alloys. The corrosion behavior of titanium alloys applied in aerospace, marine, petrochemical industries and biomedical environments are introduced. In the above environments, the passive film is most easily damaged and difficult to passive in high temperature and oxygen-deficient environments. The current controversies in the corrosion mechanism have also been proposed, especially the stress corrosion that has the most serious impact on titanium alloys, and its mechanism will be the focus of future research.
摘要钛及其合金具有比强度高、耐腐蚀性好、耐高温等优点,在许多工业领域具有突出的应用前景。本文介绍了不同的局部腐蚀形式,包括电偶腐蚀、缝隙腐蚀、点蚀、氢致开裂、应力腐蚀开裂、微生物腐蚀、腐蚀疲劳和腐蚀磨损。其中,应力腐蚀裂纹和氢致开裂引起的腐蚀失效最为严重,约占实际失效事故的40–60%。讨论了温度、压力、腐蚀介质和微观组织对钛合金失效的影响。特别值得注意的是,F−对钛合金的钝化膜具有极强的侵蚀性。介绍了钛合金在航空航天、海洋、石油化工和生物医学环境中的腐蚀行为。在上述环境中,钝化膜在高温和缺氧环境中最容易被损坏并且难以被钝化。还提出了目前在腐蚀机理方面的争议,特别是对钛合金影响最严重的应力腐蚀,其机理将是未来研究的重点。
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引用次数: 5
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