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AFS/FEF Student Technology Contest Influence of the Microstructure on the Corrosion Rate of Gray Iron

机译:AFS / FEF学生技术竞争微观结构对灰铁腐蚀速率的影响

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摘要

In this work, preliminary results of the corrosion rate in a saline solution (3 wt% NaCl) of gray iron samples in as-cast and heat treatment conditions were studied. Optical microscopy was carried out to characterize the microstructures of the gray iron in all conditions. The corrosion tests were achieved by using the Tafel electrochemical technique. The lowest corrosion rate was obtained for the normalized condition while the higher values were obtained for the austempering condition at 320 degrees C.
机译:在这项工作中,研究了在铸造和热处理条件下的灰色铁样品中盐溶液(3wt%NaCl)的腐蚀速度的初步结果。 进行光学显微镜,以表征灰铁在所有条件下的微观结构。 通过使用Tafel电化学技术实现腐蚀试验。 为归一化条件获得最低腐蚀速率,同时在320℃下获得较高值的常见型条件。

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