Optimizing the corrosion performance of rust layers: role of Al and Mn in lightweight weathering steel

IF 6.6 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

npj Materials Degradation Pub Date : 2024-03-27 DOI:10.1038/s41529-024-00450-0

Yihao Tang, Yuxing Guo, Pengfei Ji, Bo Li, Chaoqun Xia, Shuzhi Zhang, Junsong Zhang, Xinyu Zhang, Riping Liu

引用次数: 0

Abstract

In this study, the corrosion behavior of AlMn lightweight weathering steel (LWS) in the simulated marine atmosphere was investigated by means of the dry/wet corrosion cycle test. The results showed that Al was present as FeAl2O4 and enriched in the inner layer, which significantly optimizes the rust layer in terms of compactness, elemental distribution, phase constitution, and electrochemical properties. The Mn oxides promoted the formation of FeAl2O4 and enhanced the anti–rupture ability of the LWS’s rust layer.

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优化锈层的腐蚀性能：铝和锰在轻质耐候钢中的作用

本研究通过干/湿腐蚀循环试验研究了铝锰轻质耐候钢（LWS）在模拟海洋大气中的腐蚀行为。结果表明，Al 以 FeAl2O4 的形式存在并富集于内层，这极大地优化了锈层的致密性、元素分布、相组成和电化学性能。锰氧化物促进了 FeAl2O4 的形成，增强了 LWS 锈层的抗破裂能力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

npj Materials Degradation MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

7.80

自引率

7.80%

发文量

审稿时长

6 weeks

期刊介绍： npj Materials Degradation considers basic and applied research that explores all aspects of the degradation of metallic and non-metallic materials. The journal broadly defines ‘materials degradation’ as a reduction in the ability of a material to perform its task in-service as a result of environmental exposure. The journal covers a broad range of topics including but not limited to: -Degradation of metals, glasses, minerals, polymers, ceramics, cements and composites in natural and engineered environments, as a result of various stimuli -Computational and experimental studies of degradation mechanisms and kinetics -Characterization of degradation by traditional and emerging techniques -New approaches and technologies for enhancing resistance to degradation -Inspection and monitoring techniques for materials in-service, such as sensing technologies