不同冷轧变形5383铝合金腐蚀转变机理研究

IF 5.6 3区材料科学 Q1 ELECTROCHEMISTRY

Electrochimica Acta Pub Date : 2025-07-11 DOI:10.1016/j.electacta.2025.146891

Jianing Xu , Yingwei Song , Yong Cai , Kaihui Dong , Hongchi Yang , Qizhong Zhao , Beibei Wang , Dingrui Ni , En-Hou Han

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引用次数: 0

摘要

采用扫描电镜（SEM）、透射电镜（TEM）、扫描开尔文探针显微镜（SKPM）和浸渍试验研究了冷轧变形对5383铝合金组织演变和腐蚀行为的影响。不同变形量的5383铝合金腐蚀机制发生了转变。中度变形时以晶间腐蚀（IGC）为主，后期伴有点蚀。而在剧烈变形下，由于晶界处β相的减少，IGC度明显减弱，Al- mn金属间颗粒（IMPs）与Al基体之间的电偶效应加剧，导致严重的点蚀。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Study on the transition of corrosion mechanism of 5383 Al alloy with different cold rolling deformation

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Study on the transition of corrosion mechanism of 5383 Al alloy with different cold rolling deformation

The effect of cold rolling deformation on the microstructure evolution and corrosion behavior of 5383 Al alloy was investigated by Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), Scanning Kelvin Probe Microscopy (SKPM) and immersion tests. The transition of corrosion mechanism was found on 5383 Al alloy with different deformation. Intergranular corrosion (IGC) is the primary corrosion mode for moderate deformation, accompanying with the pitting corrosion in the later stage. In contrast, under severe deformation, the IGC degree significantly weakens, due to the decrease of β precipitates at grain boundaries (GBs), while the galvanic effect between Al-Mn intermetallic particles (IMPs) and Al matrix is intensified to induce severe pitting corrosion.

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来源期刊

Electrochimica Acta 工程技术-电化学

CiteScore

11.30

自引率

6.10%

发文量

1634

审稿时长

41 days

期刊介绍： Electrochimica Acta is an international journal. It is intended for the publication of both original work and reviews in the field of electrochemistry. Electrochemistry should be interpreted to mean any of the research fields covered by the Divisions of the International Society of Electrochemistry listed below, as well as emerging scientific domains covered by ISE New Topics Committee.