Corrosion-Electrochemical Behavior of the TsAMSv4-1-2.5 Zinc Alloy Doped with Sodium in a NaCl Electrolyte Environment

IF 0.3 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Inorganic Materials: Applied Research Pub Date : 2025-09-24 DOI:10.1134/S2075113325701680

I. N. Ganiev, L. Z. Alieva, A. E. Berdiev, S. J. Alikhonova

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Abstract

Metallic zinc of grade Ts3 is not widely used because of its lead content of up to 2.0–2.5%. The possibility of synthesizing a new alloy based on the zinc alloy TsAM4-1 using off-grade zinc of grade Ts3 and additional alloying with metallic sodium was evaluated (as a result, the alloy designation TsAM4-1 was changed to TsAMSv4-1-2.5). The effect of sodium addition on the corrosion-electrochemical behavior of the zinc alloy TsAMSv4-1-2.5 in a NaCl electrolyte was studied using a pulse potentiostat PI-50-1.1 by the potentiodynamic method at a potential scan rate of 2 mV/s. It was shown that alloying the TsAMSv4-1-2.5 alloy with sodium shifts the potentials of free corrosion, pitting formation, and repassivation toward the positive region. With increasing chloride ion concentration in the NaCl electrolyte, the corrosion rate of the alloys increases regardless of their composition. The addition of sodium to the TsAMSv4-1-2.5 alloy reduces its corrosion rate by 10–15%. The improvement in corrosion resistance of the zinc alloy TsAMSv4-1-2.5 by 10% allows for an equivalent reduction in the thickness of protective coatings on protected products, as well as a decrease in environmental contamination by lead.

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钠掺杂TsAMSv4-1-2.5锌合金在NaCl电解质环境中的腐蚀电化学行为

Ts3级金属锌含铅量可达2.0-2.5%，应用不广泛。评价了以Ts3级的劣质锌为原料，再添加金属钠合金，在锌合金TsAM4-1的基础上合成新合金的可能性（将合金名称TsAM4-1改为TsAMSv4-1-2.5）。采用PI-50-1.1脉冲恒电位器，在2 mV/s电位扫描速率下，采用动电位法研究了钠对锌合金TsAMSv4-1-2.5在NaCl电解质中的腐蚀电化学行为的影响。结果表明，在TsAMSv4-1-2.5合金中加入钠元素可使自由腐蚀电位、点蚀电位和再钝化电位向正极区移动。随着NaCl电解液中氯离子浓度的增加，无论合金成分如何，其腐蚀速率都在增加。在TsAMSv4-1-2.5合金中加入钠可使其腐蚀速率降低10-15%。锌合金TsAMSv4-1-2.5的耐腐蚀性提高了10%，从而使受保护产品的保护涂层厚度等效减少，并减少了铅对环境的污染。

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来源期刊

Inorganic Materials: Applied Research Engineering-Engineering (all)

CiteScore

0.90

自引率

0.00%

发文量

199

期刊介绍： Inorganic Materials: Applied Research contains translations of research articles devoted to applied aspects of inorganic materials. Best articles are selected from four Russian periodicals: Materialovedenie, Perspektivnye Materialy, Fizika i Khimiya Obrabotki Materialov, and Voprosy Materialovedeniya and translated into English. The journal reports recent achievements in materials science: physical and chemical bases of materials science; effects of synergism in composite materials; computer simulations; creation of new materials (including carbon-based materials and ceramics, semiconductors, superconductors, composite materials, polymers, materials for nuclear engineering, materials for aircraft and space engineering, materials for quantum electronics, materials for electronics and optoelectronics, materials for nuclear and thermonuclear power engineering, radiation-hardened materials, materials for use in medicine, etc.); analytical techniques; structure–property relationships; nanostructures and nanotechnologies; advanced technologies; use of hydrogen in structural materials; and economic and environmental issues. The journal also considers engineering issues of materials processing with plasma, high-gradient crystallization, laser technology, and ultrasonic technology. Currently the journal does not accept direct submissions, but submissions to one of the source journals is possible.