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Atmospheric corrosion of zinc Part 1: Rural and urban atmospheres

机译:锌的大气腐蚀第1部分:农村和城市大气

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摘要

This paper summarises the results obtianed in the MICAT (Mapa Ibero-Americano de Corrosão Atmosférica (Latin American Map of Atmospheric Corrosion)) atmospheric corrosion project (an Iberoamerican project on atmospheric corrosion, involving 14 countries and 75 atmospheric test sites) for zinc specimens exposed for 1–4 years in 21 rural and urban atmospheres of the Latin American region. During the study, all of these atmospheres were characterised according to international standards. Complementary morphological and chemical studies were carried out using scanning electron microscopy coupled with energy dispersive spectrometry (SEM–EDS), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR) techniques, in order to correlate atmospheric characteristics and the properties of zinc corrosion product layers (ZCPLs). Soluble salts retained in these ZCPLs were also determined. The study has provided clear evidence about the wide range of zinc corrosion rates occurring in rural atmospheres and suggests an interpretation of this behaviour.
机译:本文总结了MICAT(拉丁美洲大气腐蚀地图Mapa Ibero-Americano deCorrosãoAtmosférica)大气腐蚀项目(涉及14个国家和75个大气测试点的伊比利亚美洲大气腐蚀项目)的结果。在拉丁美洲地区的21个农村和城市大气中持续1-4年。在研究过程中,所有这些气氛均根据国际标准进行了表征。使用扫描电子显微镜结合能量色散光谱(SEM-EDS),X射线衍射(XRD)和傅里叶变换红外光谱(FTIR)技术进行了补充的形态学和化学研究,以关联大气特征和特性锌腐蚀产物层(ZCPL)的数量。还确定了这些ZCPL中保留的可溶性盐。该研究提供了有关农村大气中广泛的锌腐蚀速率的明确证据,并提出了这种行为的解释。

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  • 来源
    《British Corrosion Journal》 |2000年第4期|284-288|共5页
  • 作者单位

    The LTR/INETI-Instituto Nacional de Engenharia e Tecnologia Industrial, Estrada do Pa?o do Lumiar, 1649–038 Lisbon, Portugal;

    The Departamento de Ingenieria de Materiales Degradacion y Durabilidad, Centro de Investigaciones Metalurgicas, Av. Gregorio del Amo, Madrid, Spain;

    The Departamento de Investigaciones in Corrosion, CITEFA, Villa Martelli, Argentina;

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