腐蚀后的镀锌钢板表面电子显微表征

Electron Microscopic Characterization of Corrosion Products on Surface of Galvanized Steel Sheet

中文关键词:  扫描电子显微镜,X射线能谱仪,腐蚀

英文关键词:scanning electron microscope,X-ray energy spectrometer,corrosion

中文摘要:

      通过扫描电子显微镜及其附带的X射线能谱仪对镀锌钢板表面出现腐蚀锈斑、耐腐蚀性能不合格的原因进行了分析.结果表明：镀锌钢板通过热镀工艺生产出来后，未给予足够的镀后防护，同时长时间露在腐蚀性环境中，受到腐蚀产生了白锈甚至红锈，最终导致其耐腐蚀性能不合格，通过一些改进措施可有效的解决质量问题.

英文摘要:

      By means of a scanning electron microscope and its accessory X-ray energy spectrometer, corrosion products and the reason of unqualified corrosion resistance of galvanized steel sheet were analyzed. The results showed that insufficient protection of to the galvanized steel sheet after the hot dip process and long exposure in the corrosive environment, which led to the generation of white rust and red rust, were the main reasons for the disqualification of the corrosion resistance of galvanized steel sheet. This quality problem can be solved effectively by some improvement measures.