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Progress in superhydrophobic surfaces for corrosion protection of Mg alloys – a mini-review 超疏水表面在镁合金腐蚀防护方面的进展--小综述
IF 1.2 4区 材料科学 Q3 Chemical Engineering Pub Date : 2024-01-19 DOI: 10.1108/acmm-07-2023-2848
Zhengwei Song, Zhi-Hui Xie, Lifeng Ding, Shengjian Zhang

Purpose

This paper aims to comprehensively review the preparation methods of superhydrophobic surfaces (SHPS) for corrosion protection of Mg alloy in recent years.

Design/methodology/approach

The preparation methods, wettability and corrosion resistance of SHPS on Mg alloy in the past three years are systematically described in this paper.

Findings

Two types of SHPS, including single-layer and multilayer coatings for corrosion protection of Mg alloy are summarized. Preparing multilayered coatings with multifunction is the current trend in developing SHPS on Mg alloy.

Originality/value

This paper reviewed the preparation methods and corrosion resistance of SHPS on Mg alloys. It provides a valuable reference for researchers to develop highly durable SHPS with excellent corrosion resistance for Mg alloys.

目的 本文旨在全面综述近年来用于镁合金腐蚀防护的超疏水表面(SHPS)的制备方法。设计/方法/途径 本文系统阐述了近三年来用于镁合金腐蚀防护的SHPS的制备方法、润湿性和耐腐蚀性。制备具有多功能的多层涂层是当前开发镁合金 SHPS 的趋势。本文综述了镁合金 SHPS 的制备方法和耐腐蚀性能,为研究人员开发具有优异耐腐蚀性能的高耐久性镁合金 SHPS 提供了有价值的参考。
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引用次数: 0
Effect of zinc oxide on the electrochemical properties of micro-arc oxidation coatings in seawater 氧化锌对海水中微弧氧化涂层电化学特性的影响
IF 1.2 4区 材料科学 Q3 Chemical Engineering Pub Date : 2024-01-11 DOI: 10.1108/acmm-11-2023-2917
Qiang Sun, Quantong Jiang, Siwei Wu, Chang Liu, Heng Tang, L. Song, Hao Shi, Jizhou Duan, BaoRong Hou

Purpose

The purpose of this paper is to explore the effect of ZnO on the structure and properties of micro-arc oxidation (MAO) coating on rare earth magnesium alloy under large concentration gradient.

Design/methodology/approach

The macroscopic and microscopic morphology, thickness, surface roughness, chemical composition and structure of the coating were characterized by different characterization methods. The corrosion resistance of the film was studied by electrochemical and scanning Kelvin probe force microscopy. The results show that the addition of ZnO can significantly improve the compactness and corrosion resistance of the MAO coating, but the high concentration of ZnO will cause microcracks, which will reduce the corrosion resistance to a certain extent.

Findings

When the concentration of zinc oxide is 8 g/L, the compactness and corrosion resistance of the coating are the best, and the thickness of the coating is positively correlated with the concentration of ZnO.

Research limitations/implications

Too high concentration of ZnO reduces the performance of MAO coating.

Practical implications

The MAO coating prepared by adding ZnO has good corrosion resistance. Combined with organic coatings, it can be applied in corrosive marine environments, such as ship parts and hulls. To a certain extent, it can reduce the economic loss caused by corrosion.

Originality/value

The effect of ZnO on the corrosion resistance of MAO coating in electrolyte solution was studied systematically, and the conclusion was new to the common knowledge.

设计/方法/途径采用不同的表征方法对涂层的宏观和微观形貌、厚度、表面粗糙度、化学成分和结构进行了表征。通过电化学和扫描开尔文探针力显微镜研究了薄膜的耐腐蚀性。结果表明,氧化锌的添加能显著提高 MAO 涂层的致密性和耐腐蚀性,但高浓度的氧化锌会造成微裂纹,从而在一定程度上降低耐腐蚀性。研究结果当氧化锌的浓度为 8 g/L 时,涂层的致密性和耐腐蚀性最好,涂层的厚度与氧化锌的浓度呈正相关。添加 ZnO 制备的 MAO 涂层具有良好的耐腐蚀性,可与有机涂层结合应用于腐蚀性海洋环境,如船舶部件和船体。原创性/价值系统研究了氧化锌对电解质溶液中 MAO 涂层耐腐蚀性的影响,得出了新的结论。
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引用次数: 0
Atmospheric corrosion acceleration effect on commercial aluminum alloys in current-carrying condition 大气腐蚀加速效应对载流条件下商用铝合金的影响
IF 1.2 4区 材料科学 Q3 Chemical Engineering Pub Date : 2024-01-08 DOI: 10.1108/acmm-06-2023-2818
Yan Gao, Qiubo Li, Wei Wu, Qiwei Wang, Yizhe Su, Junxi Zhang, Deyuan Lin, Xiaojian Xia

Purpose

The purpose of this paper is to study the effect of current-carrying condition on the electrochemical process and atmospheric corrosion behavior of the commercial aluminum alloys.

Design/methodology/approach

Potentiodynamic polarization tests were performed to study the electrochemical process of the aluminum alloys. Salt spray tests and weight loss tests were carried out to study the atmospheric corrosion behavior. The corrosion morphology of the alloys was observed, and the products were analyzed.

Findings

The corrosion process of four aluminum alloys was accelerated in the current-carrying condition. Moreover, the acceleration effect on A2024 and A7075 was much stronger than that on A1050 and A5052. The main factors would be the differences in microstructure and corrosion resistance between these alloys. As the carried current increased, the corrosion rate and corrosion current density of the aluminum alloys gradually increased, with the protection of the corrosion product film decreasing linearly.

Originality/value

This is a recent study on the corrosion behavior of conductors under current-carrying condition, which truly understands the corrosion status of power grid materials. Relevant results provide support for the corrosion protection and safe service of aluminum alloy in power systems.

目的 本文旨在研究载流条件对商用铝合金的电化学过程和大气腐蚀行为的影响。盐雾试验和失重试验用于研究大气腐蚀行为。结果四种铝合金的腐蚀过程在载流条件下被加速。此外,对 A2024 和 A7075 的加速效果远远强于对 A1050 和 A5052 的加速效果。主要原因是这些合金的微观结构和耐腐蚀性不同。随着承载电流的增加,铝合金的腐蚀速率和腐蚀电流密度逐渐增加,腐蚀产物膜的保护作用呈线性下降。相关结果为铝合金在电力系统中的腐蚀防护和安全使用提供了支持。
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引用次数: 0
Effect of ultraviolet light on the corrosion behavior of weathering steel in simulated marine atmospheric environment 紫外线对模拟海洋大气环境中风化钢腐蚀行为的影响
IF 1.2 4区 材料科学 Q3 Chemical Engineering Pub Date : 2024-01-05 DOI: 10.1108/acmm-04-2023-2794
Shuo Su, Xiong-Tao Zhu, Hong-Qiang Fan

Purpose

This paper aims to study the effect of ultraviolet (UV) light on the corrosion behavior of BC550 weathering steel in simulated marine atmospheric environment.

Design/methodology/approach

The effect of UV light on the corrosion behavior of BC550 weathering steel in simulated marine atmospheric environments were investigated by the corrosion weight gain experiment, in situ electrochemical noise, scanning electron microscope and X-ray diffraction.

Findings

UV light accelerated the corrosion process of BC550 weathering steel in the simulated marine atmospheric environment during the first 168 h. The maximum influence factor of UV light was 0.32, and it was only 0.08 after 168 h of corrosion process.

Originality/value

As the extension of corrosion time, the thickness and density of the corrosion product layer increased, which weakened the acceleration effect of UV light.

设计/方法/途径 通过腐蚀增重实验、原位电化学噪声、扫描电子显微镜和 X 射线衍射,研究了紫外光对 BC550 耐候钢在模拟海洋大气环境中腐蚀行为的影响。随着腐蚀时间的延长,腐蚀产物层的厚度和密度增加,削弱了紫外光的加速作用。
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引用次数: 0
The preparation and corrosion resistance of superhydrophobic coating on Cu plate via two-step electrodeposition 两步电沉积法制备铜板超疏水涂层及其耐腐蚀性能
IF 1.2 4区 材料科学 Q3 Chemical Engineering Pub Date : 2023-12-22 DOI: 10.1108/acmm-09-2023-2903
Zhengwei Song, Shengjian Zhang, Lifeng Ding, Xuejing Wu, Ning Long

Purpose

The purpose of this paper was prepared a Ni-based superhydrophobic coating on the surface of copper to enhence its corrosion resistance. The superhydrophobic coating (SHPC) has proven to be an effective surface treatment in corrosion protection. In this paper, a Ni-based SHPC was prepared on the surface of copper (Cu) to enhance its corrosion resistance.

Design/methodology/approach

The coating was prepared through a two-step electrodeposition process. The first step involves the formation of a micro-nano structure Ni layer formed by an electrodeposition process. Subsequently, the polysiloxane layer was deposited on the Ni surface to create an SHPC. The morphology, composition, structure, wettability and corrosion resistance of the coating were characterized and discussed.

Findings

The results show that the water contact angle of the as-prepared coating reaches 155.5°±1.0°. The corrosion current density (icorr = 3.90 × 10−9 A·cm−2) decreased by three orders of magnitude compared to the substrate, whereas |Z|f = 0.01Hz (2.40 × 106 Ω·cm2) increased by three orders of magnitude. It indicated that the prepared coating has excellent superhydrophobicity and high corrosion resistance, which can provide better protection for the substrate.

Originality/value

The prepared coating provides long-lasting protection for Cu and other metals and offers valuable data for developing SHPCs.

目的 本文的目的是在铜表面制备一种镍基超疏水涂层,以增强其耐腐蚀性。超疏水涂层(SHPC)已被证明是一种有效的防腐蚀表面处理方法。本文在铜(Cu)表面制备了一种镍基 SHPC,以增强其耐腐蚀性。第一步是通过电沉积工艺形成微纳米结构的镍层。随后,在镍表面沉积聚硅氧烷层,形成 SHPC。结果表明,制备的涂层的水接触角达到 155.5°±1.0°。与基体相比,腐蚀电流密度(icorr = 3.90 × 10-9 A-cm-2)降低了三个数量级,而 |Z|f = 0.01 Hz (2.40 × 106 Ω-cm2)则增加了三个数量级。这表明制备的涂层具有优异的超疏水性和高耐腐蚀性,能为基底提供更好的保护。
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引用次数: 0
Experimental and theoretical investigation of two thioether-based Schiff bases as anti-corrosion agents for carbon steel in HCl electrolyte 两种硫醚基席夫碱作为盐酸电解液中碳钢防腐剂的实验和理论研究
IF 1.2 4区 材料科学 Q3 Chemical Engineering Pub Date : 2023-12-20 DOI: 10.1108/acmm-07-2023-2856
Halime Morovati, Mohammad Reza Noorbala, Mansoor Namazian, Hamid R. Zare, Ahmad Ali Dehghani-Firouzabadi

Purpose

The main purpose of the present work is to introduce two new Schiff bases as corrosion inhibitors (CIs) for carbon steel (CS). The anti-corrosion performance of these Schiff bases having N and S heteroatoms in their structures was investigated and compared in 2 M HCl electrolyte. The inhibitory activity of these Schiff bases was also assessed.

Design/methodology/approach

Common electrochemical assays like potentiodynamic polarization and electrochemical impedance measurements were used to evaluate the ability of compounds in reduction of the rate of corrosion. Quantum chemical calculations (QCCs) were also used to examine the corrosion inhibitive and the process related to the electrical and structural characteristics of the molecules acting as CIs.

Findings

The electrochemical measurements indicate that both Schiff bases acted as the efficient CIs of CS in 2 M HCl electrolyte. The adsorption of the Schiff base on the surface of the CS caused the corrosion to be inhibited. The change of Gibbs energies indicated that both physical and chemical interactions are involved in the adsorption of NNS and SNS on CS surfaces. The predicted QCCs of the CIs neutral and positively charged versions were well-aligned with those obtained by electrochemical experiments.

Originality/value

Using electrochemical experiments and quantum chemical modelings, two new Schiff bases, N-2-((2-nitrophenyl)thio)phenyl)-1-(pyrrole-2-yl)methanimine (NNS) and N-2-((2-nitrophenyl)thio)phenyl)-1-(thiophen-2-yl)methanimine (SNS), were evaluated as anti-corrosion agents for CS in 2 M HCl electrolyte. The DFT calculations were considered to compute the quantum chemical parameters of the inhibitors.

目的 本研究的主要目的是引入两种新的希夫碱作为碳钢(CS)的缓蚀剂(CIs)。在 2 M HCl 电解液中,研究并比较了这些结构中含有 N 和 S 杂原子的席夫碱的防腐蚀性能。设计/方法/步骤采用电位极化和电化学阻抗测量等常用电化学方法来评估化合物降低腐蚀速率的能力。电化学测量结果表明,在 2 M HCl 电解液中,两种席夫碱都是 CS 的有效 CI。希夫碱在 CS 表面的吸附抑制了腐蚀。吉布斯能的变化表明,CS 表面对 NNS 和 SNS 的吸附既有物理作用,也有化学作用。所预测的 CIs 中性和正电荷版本的 QCC 与电化学实验所获得的 QCC 非常吻合。原创性/价值利用电化学实验和量子化学模型,评估了 N-2-((2-硝基苯基)硫)苯基)-1-(吡咯-2-基)甲亚胺(NNS)和 N-2-((2-硝基苯基)硫)苯基)-1-(噻吩-2-基)甲亚胺(SNS)这两种新型希夫碱在 2 M HCl 电解液中作为 CS 防腐剂的性能。DFT 计算用于计算抑制剂的量子化学参数。
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引用次数: 0
Cold metal transfer welding of 316L/430 dissimilar stainless-steel welds 316L/430 异种不锈钢焊缝的冷金属转移焊接
IF 1.2 4区 材料科学 Q3 Chemical Engineering Pub Date : 2023-12-19 DOI: 10.1108/acmm-03-2023-2774
Chetan Tembhurkar, Sachin Ambade, Ravinder Kataria, Jagesvar Verma, Abhijeet Moon

Purpose

This paper aims to examine dissimilar joints for various applications in chemical, petrochemical, oil, gas, shipbuilding, defense, rail and nuclear industry.

Design/methodology/approach

This study examined the effects of cold metal transfer welding on stainless steel welds for 316L austenitic and 430 ferritic dissimilar welds with ER316L, ER309L and without (autogenous) fillers. The microstructural observation was done with an optical microscope. The mechanical test was done to reveal the strength, hardness and toughness of the joint. The electrochemical polarization tests were done to reveal intergranular and pitting corrosion in the dissimilar joints.

Findings

This microstructural study shows the presence of austenitic and ferritic phases with vermicular ferrite for ER309L filler weld, and for ER316L filler weld specimen shows predominately martensitic phase in the weld region, whereas the autogenous weld shows lathy ferrite mixed with martensitic phase. Mechanical test results indicated that filler welded specimen (ER316L and ER309L) has relatively higher strength and hardness than the autogenous weld, whereas ER316L filler weld exhibited the highest impact toughness than ER309L filler weld and lowest in autogenous weld. The electrochemical corrosion results displayed the highest degree of sensitization (DOS) in without filler welded specimen (45.62%) and lower in case of filler welded specimen ER309L (4.95%) and least in case of ER316L filler welded specimen (3.51%). The high DOS in non-filler welded specimen is correlated with the chromium carbide formation. The non-filler welded specimen shows the highest pitting corrosion attack as compared to the ER316L filler weld specimen and relatively better in ER309L filler welded specimen. The highest pitting corrosion resistance is related with the high chromium content in ER309L composition.

Originality/value

This experimental study is original and conducted with 316L and 430 stainless steel with ER316L, ER309 and without fillers, which will help the oil, shipbuilding and chemical industries.

本文旨在研究异种接头在化工、石化、石油、天然气、造船、国防、铁路和核工业中的各种应用。本研究考察了冷金属转移焊接对不锈钢焊缝的影响,包括带有 ER316L、ER309L 和不带(自生)填料的 316L 奥氏体和 430 铁素体异种焊缝。用光学显微镜观察了微观结构。机械测试用于检测接头的强度、硬度和韧性。研究结果这项微观结构研究表明,ER309L 填充焊缝存在奥氏体和铁素体相,并伴有蛭石状铁素体;ER316L 填充焊缝试样在焊接区域主要显示出马氏体相,而自生焊缝则显示出与马氏体相混合的蛭石状铁素体。机械测试结果表明,填充焊缝试样(ER316L 和 ER309L)的强度和硬度相对高于自生焊缝,而 ER316L 填充焊缝的冲击韧性比 ER309L 填充焊缝最高,自生焊缝最低。电化学腐蚀结果显示,无填充焊缝试样的敏化程度(DOS)最高(45.62%),填充焊缝试样 ER309L 的敏化程度较低(4.95%),填充焊缝试样 ER316L 的敏化程度最低(3.51%)。无填充物焊接试样的高 DOS 与碳化铬的形成有关。与 ER316L 填充焊试样相比,非填充焊试样的点蚀侵蚀最高,而 ER309L 填充焊试样的点蚀侵蚀相对较好。最高的抗点蚀性能与 ER309L 成分中的高铬含量有关。原创性/价值这项实验研究是原创性的,使用 ER316L、ER309 和无填料的 316L 和 430 不锈钢进行,这将有助于石油、造船和化工行业。
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引用次数: 0
A comparative study on the corrosion behavior of Q235 steel in saturated acidic red and yellow soils 饱和酸性红土和黄土中 Q235 钢腐蚀行为的比较研究
IF 1.2 4区 材料科学 Q3 Chemical Engineering Pub Date : 2023-12-18 DOI: 10.1108/acmm-03-2023-2775
Yingying Li, Lanlan Liu, Jun Wang, Song Xu, Hui Su, Yi Xie, Tangqing Wu

Purpose

The purpose of this paper is to study the corrosion behavior of Q235 steel in saturated acidic red and yellow soils.

Design/methodology/approach

The corrosion behavior of Q235 steel in saturated red and yellow soils was compared by weight-loss, SEM/EDS, 3D ultra-depth microscopy and electrochemical measurements.

Findings

Rp of the steel gradually increases and icorr gradually decreases in both the red and yellow soils with time. The Rp of the steel in the red soil is lower, but its icorr is higher than that in the yellow soil. The uniform corrosion rate, diameter and density of the corrosion pit on the steel surface in the red soil are greater than those in the yellow soil. Lower pH, higher contents of corrosive anions and high-valence Fe oxides in the red soil are responsible for its higher corrosion rates and local corrosion susceptibility.

Originality/value

This paper investigates the difference in corrosion behavior of carbon steel in saturated acidic red and yellow soils, which can help to understand the mechanism of soil corrosion.

本文旨在研究 Q235 钢在饱和酸性红壤和黄壤中的腐蚀行为。通过失重法、扫描电镜/电子显微镜、三维超深度显微镜和电化学测量,比较了 Q235 钢在饱和红壤和黄壤中的腐蚀行为。红壤中钢材的 Rp 值低于黄壤,但 icorr 值高于黄壤。红壤中钢材表面的均匀腐蚀速率、腐蚀坑直径和密度均大于黄壤。红壤中较低的 pH 值、较高的腐蚀性阴离子含量和高价铁氧化物是其腐蚀速率和局部腐蚀敏感性较高的原因。
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引用次数: 0
Review on aviation intelligent self-healing anti-corrosion coating 航空智能自修复防腐涂料综述
IF 1.2 4区 材料科学 Q3 Chemical Engineering Pub Date : 2023-12-14 DOI: 10.1108/acmm-08-2023-2888
Yajun Chen, Zehuan Sui, Juan Du

Purpose

This paper aims to focus on the research progress of intelligent self-healing anti-corrosion coatings in the aviation field in the past few years. The paper provides certain literature review supports and development direction suggestions for future research on intelligent self-healing coatings in aviation.

Design/methodology/approach

This mini-review uses a systematic literature review process to provide a comprehensive and up-to-date review of intelligent self-healing anti-corrosion coatings that have been researched and applied in the field of aviation in recent years. In total, 64 articles published in journals in this field in the last few years were analysed in this paper.

Findings

The authors conclude that the incorporation of multiple external stimulus-response mechanisms makes the coatings smarter in addition to their original self-healing corrosion protection function. In the future, further research is still needed in the research and development of new coating materials, the synergistic release of multiple self-healing mechanisms, coating preparation technology and corrosion monitoring technology.

Originality/value

To the best of the authors’ knowledge, this is one of the few systematic literature reviews on intelligent self-healing anti-corrosion coatings in aviation. The authors provide a comprehensive overview of the topical issues of such coatings and present their views and opinions by discussing the opportunities and challenges that self-healing coatings will face in future development.

目的 本文旨在关注近几年航空领域智能自修复防腐涂料的研究进展。本文采用系统的文献综述流程,对近年来航空领域研究和应用的智能自修复防腐涂料进行了全面的最新综述。本文共分析了最近几年发表在该领域期刊上的 64 篇文章。研究结果作者认为,多种外部刺激-响应机制的加入使涂层在原有的自修复防腐功能之外变得更加智能。未来,在新型涂层材料的研发、多种自修复机制的协同释放、涂层制备技术和腐蚀监测技术等方面仍需进一步研究。 原创性/价值 据作者所知,这是为数不多的关于航空领域智能自修复防腐蚀涂层的系统性文献综述。作者全面概述了此类涂层的热点问题,并通过讨论自修复涂层在未来发展中面临的机遇和挑战,提出了自己的观点和看法。
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引用次数: 0
Mechanical and corrosion properties of nano ZrC reinforced FeCrAl alloys 纳米 ZrC 增强铁铬铝合金的机械和腐蚀特性
IF 1.2 4区 材料科学 Q3 Chemical Engineering Pub Date : 2023-12-13 DOI: 10.1108/acmm-09-2023-2896
Zhenyu Ma, Yupeng Zhang, Xuguang An, Jing Zhang, Qingquan Kong, Hui Wang, Weitang Yao, Qingyuan Wang

Purpose

The purpose of this study is to investigate the effect of nano ZrC particles on the mechanical and electrochemical corrosion properties of FeCrAl alloys, providing a beneficial reference basis for the development of high-performance carbide reinforced FeCrAl alloys with good mechanical and corrosion properties in the future.

Design/methodology/approach

Nano ZrC reinforced FeCrAl alloys were prepared by mechanical alloying and spark plasma sintering. Phases composition, tensile fractography, corrosion morphology and chemical composition of nano ZrC reinforced FeCrAl alloys were analyzed by X-ray diffraction, scanning electron microscopy and energy dispersive X-ray spectroscopy, respectively. Microhardness and tensile properties of nano ZrC reinforced FeCrAl alloys were investigated by mechanical testing machine and Vickers hardness tester. Electrochemical corrosion properties of nano ZrC reinforced FeCrAl alloys were investigated by electrochemical workstation in 3.5 wt.% NaCl solution.

Findings

The results showed that addition of nano ZrC can effectively improve the mechanical and corrosion properties. However, excessive nano ZrC could decrease the mechanical properties and reduce the corrosion resistance. In all the FeCrAl alloys, FeCrAl–0.6 wt.% ZrC alloy exhibits the optimum mechanical properties with an ultimate tensile strength, elongation and hardness of 990.7 MPa, 24.1% and 335.8 HV1, respectively, and FeCrAl–0.2 wt.% ZrC alloy has a lower corrosion potential (−0.179 V) and corrosion current density (2.099 µA/cm2) and larger pitting potential (0.497 V) than other FeCrAl–ZrC alloys, showing a better corrosion resistance.

Originality/value

Adding proper nano ZrC particles can effectively improve the mechanical and corrosion properties, while the excessive nano ZrC is harmful to the mechanical and corrosion properties of FeCrAl alloys, which provides an instruction to develop high-performance FeCrAl cladding materials.

目的研究纳米ZrC颗粒对FeCrAl合金力学性能和电化学腐蚀性能的影响,为今后开发具有良好力学性能和腐蚀性能的高性能碳化物增强FeCrAl合金提供有益的参考依据。分别用 X 射线衍射、扫描电子显微镜和能量色散 X 射线光谱分析了纳米 ZrC 增强铁铬铝合金的相组成、拉伸断口形貌、腐蚀形貌和化学成分。用机械试验机和维氏硬度计研究了纳米 ZrC 增强铁铬铝合金的显微硬度和拉伸性能。结果表明,纳米 ZrC 的添加能有效改善铁铬铝合金的机械性能和腐蚀性能。然而,过量的纳米 ZrC 会降低力学性能和耐腐蚀性能。在所有铁铬铝合金中,FeCrAl-0.6 wt.% ZrC 合金的机械性能最佳,其极限抗拉强度、伸长率和硬度分别为 990.7 MPa、24.1% 和 335.8 HV1;与其他铁铬铝合金相比,FeCrAl-0.2 wt.% ZrC 合金的腐蚀电位(-0.179 V)和腐蚀电流密度(2.099 µA/cm2)更低,点蚀电位(0.497 V),显示出较好的耐腐蚀性能。原创性/价值添加适当的纳米ZrC颗粒可有效改善FeCrAl合金的力学性能和腐蚀性能,而过量的纳米ZrC对FeCrAl合金的力学性能和腐蚀性能有害,这为开发高性能的FeCrAl覆层材料提供了指导。
{"title":"Mechanical and corrosion properties of nano ZrC reinforced FeCrAl alloys","authors":"Zhenyu Ma, Yupeng Zhang, Xuguang An, Jing Zhang, Qingquan Kong, Hui Wang, Weitang Yao, Qingyuan Wang","doi":"10.1108/acmm-09-2023-2896","DOIUrl":"https://doi.org/10.1108/acmm-09-2023-2896","url":null,"abstract":"<h3>Purpose</h3>\u0000<p>The purpose of this study is to investigate the effect of nano ZrC particles on the mechanical and electrochemical corrosion properties of FeCrAl alloys, providing a beneficial reference basis for the development of high-performance carbide reinforced FeCrAl alloys with good mechanical and corrosion properties in the future.</p><!--/ Abstract__block -->\u0000<h3>Design/methodology/approach</h3>\u0000<p>Nano ZrC reinforced FeCrAl alloys were prepared by mechanical alloying and spark plasma sintering. Phases composition, tensile fractography, corrosion morphology and chemical composition of nano ZrC reinforced FeCrAl alloys were analyzed by X-ray diffraction, scanning electron microscopy and energy dispersive X-ray spectroscopy, respectively. Microhardness and tensile properties of nano ZrC reinforced FeCrAl alloys were investigated by mechanical testing machine and Vickers hardness tester. Electrochemical corrosion properties of nano ZrC reinforced FeCrAl alloys were investigated by electrochemical workstation in 3.5 wt.% NaCl solution.</p><!--/ Abstract__block -->\u0000<h3>Findings</h3>\u0000<p>The results showed that addition of nano ZrC can effectively improve the mechanical and corrosion properties. However, excessive nano ZrC could decrease the mechanical properties and reduce the corrosion resistance. In all the FeCrAl alloys, FeCrAl–0.6 wt.% ZrC alloy exhibits the optimum mechanical properties with an ultimate tensile strength, elongation and hardness of 990.7 MPa, 24.1% and 335.8 HV1, respectively, and FeCrAl–0.2 wt.% ZrC alloy has a lower corrosion potential (−0.179 V) and corrosion current density (2.099 µA/cm2) and larger pitting potential (0.497 V) than other FeCrAl–ZrC alloys, showing a better corrosion resistance.</p><!--/ Abstract__block -->\u0000<h3>Originality/value</h3>\u0000<p>Adding proper nano ZrC particles can effectively improve the mechanical and corrosion properties, while the excessive nano ZrC is harmful to the mechanical and corrosion properties of FeCrAl alloys, which provides an instruction to develop high-performance FeCrAl cladding materials.</p><!--/ Abstract__block -->","PeriodicalId":8217,"journal":{"name":"Anti-corrosion Methods and Materials","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138567955","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}
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Anti-corrosion Methods and Materials
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