Hong Qin, Jin Liu, Qianxi Shao, Xiqing Zhang, Yingxue Teng, Shuweng Chen, Dazhen Zhang, Shuo Bao
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引用次数: 0
Abstract
Scanning electron microscope (SEM) and X-ray diffraction (XRD) were used to discuss the corrosion loss and morphology of the pit and rust layer of carbon steel. It was found that the corrosion process is largely influenced by the cyclic shedding of surface corrosion products, in addition to being controlled by the mechanism of oxide film shedding and pit evolution. A corrosion mechanism (the mechanism of rust layer shedding) is proposed. As a result, in this paper, the corrosion process of the test steel is simulated by the cellular automata. It was set up that the mechanism of oxide film shedding, the mechanism of pit evolution, and the mechanism of rust layer shedding in Cellular Automata Simulation. The optimal time ratio and simulation parameters were found, and a predictable cellular automata corrosion simulation model was built, providing a solution for carbon steel’s service life prediction.
使用扫描电子显微镜(SEM)和 X 射线衍射(XRD)讨论了碳钢的腐蚀损耗及凹坑和锈层的形态。研究发现,腐蚀过程除了受氧化膜脱落和凹坑演变机理的控制外,在很大程度上还受表面腐蚀产物循环脱落的影响。本文提出了一种腐蚀机理(锈层脱落机理)。因此,本文用单元自动机模拟了试验钢材的腐蚀过程。在细胞自动机模拟中设定了氧化膜脱落机理、凹坑演变机理和锈层脱落机理。找到了最佳时间比和模拟参数,建立了可预测的细胞自动机腐蚀模拟模型,为碳钢的使用寿命预测提供了解决方案。
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