Ti75 合金在含不同浓度 Cu2+ 的 3.5 wt%氯化钠溶液中的腐蚀情况

IF 7.4 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Corrosion Science Pub Date : 2024-11-22 DOI:10.1016/j.corsci.2024.112567

D.H. Li , H.X. Hu , H.D. Pan , Z.B. Wang , W.T. An , Y.G. Zheng

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引用次数: 0

摘要

研究了 Ti75 合金在含有五种浓度 Cu2+ 的 3.5 wt%中性 NaCl 溶液中的腐蚀情况。结果表明，在不含 Cu2+ 的对照溶液中，腐蚀程度最小。然而，随着 Cu2+ 浓度的进一步提高，腐蚀程度也随之降低，这是因为被动膜的特性（包括其成分和载流子密度）发生了变化。此外，腐蚀电位和扩散极限电流密度都随着 Cu2+ 浓度的增加而增加。此外，还分析了 Cu2+ 对阳极和阴极过程的影响及其在被动膜发展过程中的作用。

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Corrosion of Ti75 alloy in a 3.5 wt% NaCl solution containing different concentrations of Cu2+

The corrosion of Ti75 alloy was investigated in a neutral 3.5 wt% NaCl solution with five concentrations of Cu²⁺. Results demonstrated that the corrosion is the least in the control solution without Cu²⁺. However, a further increase in the Cu²⁺ concentration led to a decrease in corrosion due to the changes in passive film properties including its compositions and the carrier density. Moreover, both the corrosion potential and the diffusion-limited current density increase with the increasing Cu²⁺ concentration. Additionally, the effects of Cu²⁺ on both anodic and cathodic processes, as well as its role in the passive film's development, were analyzed.

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来源期刊

Corrosion Science 工程技术-材料科学：综合

CiteScore

13.60

自引率

18.10%

发文量

763

审稿时长

46 days

期刊介绍： Corrosion occurrence and its practical control encompass a vast array of scientific knowledge. Corrosion Science endeavors to serve as the conduit for the exchange of ideas, developments, and research across all facets of this field, encompassing both metallic and non-metallic corrosion. The scope of this international journal is broad and inclusive. Published papers span from highly theoretical inquiries to essentially practical applications, covering diverse areas such as high-temperature oxidation, passivity, anodic oxidation, biochemical corrosion, stress corrosion cracking, and corrosion control mechanisms and methodologies. This journal publishes original papers and critical reviews across the spectrum of pure and applied corrosion, material degradation, and surface science and engineering. It serves as a crucial link connecting metallurgists, materials scientists, and researchers investigating corrosion and degradation phenomena. Join us in advancing knowledge and understanding in the vital field of corrosion science.