论文标题
使用短波红外高光谱成像对锌电镀钢进行腐蚀监测
Corrosion Monitoring On Zinc Electroplated Steel Using Shortwave Infrared Hyperspectral Imaging
论文作者
论文摘要
在这项研究中，我们研究了使用高光谱成像（HSI）来检查镀锌碳钢样品上腐蚀产物的形成。对十个样品进行了加速腐蚀试验，并具有不同的暴露时间。分析是在两步过程中进行的：首先，通过微观傅立叶变换红外光谱（FTIR）在样品上的特定位置通过微观傅立叶变换红外光谱（FTIR）鉴定。鉴定出以下腐蚀矿物质：ZnO（锌/锌）Zn5（OH）8Cl2 H2O（Simonkolleite），Znco3（Smithsonite），Zn5（CO3）2（OH）6（Marionite/ Hydrozince）。其次，在这些特定位置，鉴定出的腐蚀矿物与HSI光谱相关。这种相关性为我们提供了SWIR区域的光谱，并使我们能够为不同的腐蚀矿物构建分类图。结果表明，我们能够使用HSI相机识别不同的矿物质。与FTIR相比，这种提出的方法使我们能够加快检查过程，同时仍然准确区分不同的腐蚀矿物质。
In this study, we investigate the use of hyperspectral imaging (HSI) to inspect the formation of corrosion products on galvanised carbon steel samples. Ten samples were subjected to an accelerated corrosion test with different exposure times. The analysis is performed in a two-step procedure: First, the different corrosion minerals are identified by microscopic Fourier transform infrared spectroscopy (FTIR) at specific locations on the samples. The following corrosion minerals are identified: ZnO (zincite/zinc oxide) Zn5(OH)8Cl2 H2O (simonkolleite), ZnCO3 (smithsonite), Zn5(CO3)2(OH)6 (marionite/ hydrozincite). Second, the identified corrosion minerals are correlated with the HSI spectra for these specific locations. This correlation provides us with the spectra in the SWIR region and allows us to construct a classification map for the different corrosion minerals. The results show that we are able to identify the different minerals using HSI camera. This proposed methodology allows us to speed up the inspection process, compared to FTIR, while still accurately distinguishing between the different corrosion minerals.
