铝和锌对AZ （Mg-Al-Zn）系镁合金腐蚀行为的影响

IF 11.2 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Materials Science & Technology Pub Date : 2025-04-30 DOI:10.1016/j.jmst.2025.04.007

Jingying Li, Hao Liu, Li Liu, Chongqing Guo, Lihui Yang, Jiarun Li, Jia Wang

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引用次数: 0

摘要

通过材料表征、浸渍和电化学试验研究了AZ31、AZ61、AZ91、AZ62和AZ63系列镁合金的显微组织和腐蚀行为。Al和Zn分别通过促进β-Mg17Al12和共晶α相的偏析来促进镁合金的腐蚀。AZ63镁合金中含有大量的共晶α相，有利于腐蚀产物的解吸，腐蚀速率最高。在电化学阻抗谱响应中，产物在电极表面的自由区面积比和单价Mg离子（CMg+）的活性作为两个状态变量，分别引起电容响应和感应响应，并通过电极过程动力学进行了解释。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Effect of aluminum and zinc on the corrosion behavior of AZ (Mg-Al-Zn) series magnesium alloys

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Effect of aluminum and zinc on the corrosion behavior of AZ (Mg-Al-Zn) series magnesium alloys

The microstructures and corrosion behaviors of AZ series magnesium alloys (AZ31, AZ61, AZ91, AZ62, and AZ63) were investigated via materials characterization, immersion, and electrochemical tests. Both Al and Zn can promote the corrosion of magnesium alloys via promoting the segregations of β-Mg₁₇Al₁₂ and eutectic α phases, respectively. AZ63 magnesium alloy performs the highest corrosion rate due to the high amount of eutectic α phases, which facilitates the desorption of corrosion products. The area ratio of products free region on the electrode surface and activity of univalent Mg ion (C_Mg+) as two state variables, which would give rise to capacitive and inductive responses in electrochemical impedance spectroscopy responses, were interpreted by the kinetics of electrode process, respectively.

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来源期刊

Journal of Materials Science & Technology 工程技术-材料科学：综合

CiteScore

20.00

自引率

11.00%

发文量

995

审稿时长

13 days

期刊介绍： Journal of Materials Science & Technology strives to promote global collaboration in the field of materials science and technology. It primarily publishes original research papers, invited review articles, letters, research notes, and summaries of scientific achievements. The journal covers a wide range of materials science and technology topics, including metallic materials, inorganic nonmetallic materials, and composite materials.