The evolution process of rust layer formed on the surface of low-alloy steels in simulated marine atmospheric environment

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

Corrosion Science Pub Date : 2025-09-29 DOI:10.1016/j.corsci.2025.113372

Qingfeng Hou , Yuxin Qi , Rong Chen , Haitao Wang , Chao Xiang , En-Hou Han

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Abstract

A rust layer formed on the surface of the weathering steel sample after a 288-hour wet/dry cyclic corrosion test simulating a marine atmospheric environment. The results indicate that the degree of crystallization of the rust near the metal is poor, and corrosion products accumulate into a rust layer characterized by good adhesion and a dense structure, as observed through FIB-TEM analysis. The degree of crystallization of the corrosion products is slightly better in the band-like rust and the band-like rust achieves the secondary allocation of elements in the rust layer. Additionally, CuFeO₂ nanocrystalline formed in the band-like rust and phosphate with chromium ions is dispersed in rust near the metal exhibiting a synergistic effect in enhancing rust protection capability. This work analyzes the transformation behavior of corrosion products by characterizing the rust layer of samples subjected to indoor simulated atmospheric corrosion, thereby deepening the understanding of the evolution process of the rust layer.

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模拟海洋大气环境下低合金钢表面形成锈层的演化过程

在模拟海洋大气环境下进行288小时的干湿循环腐蚀试验后，耐候钢试样表面形成锈蚀层。结果表明：通过FIB-TEM分析，金属附近的锈蚀结晶程度较差，腐蚀产物聚集形成附着性好、结构致密的锈蚀层；带状锈蚀中腐蚀产物的结晶程度略好，带状锈蚀实现了锈蚀层元素的二次分配。此外，带状铁锈中形成CuFeO2纳米晶，磷酸盐与铬离子一起分散在金属附近的铁锈中，表现出协同作用，增强了防锈能力。本工作通过对室内模拟大气腐蚀试样的锈层进行表征，分析腐蚀产物的转化行为，从而加深对锈层演化过程的认识。

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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.