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1 前言 预测金属设施在土壤中的腐蚀速度和使用寿命,对于建设大型工程是必不可少的设计依据。土壤腐蚀加速试验方法的研究是我国自然科学墓础研究项目之一。本工作旨在通过室内短期试验来预测金属材料在土壤中长时间的腐蚀情况。 根据金属腐蚀原理,铜—钢电偶对在土壤介质中短接会构成宏腐蚀原电池。此时钢片被阳极极化,从而加速了它在土壤中的腐蚀。要使钢片达到自然埋藏几十年的腐蚀程
1 Foreword Predicting the corrosion rate and service life of metal facilities in soil is an indispensable design basis for the construction of large-scale projects. Soil accelerated corrosion test method is one of the research projects of natural science in China. This work aims to predict long-term corrosion of metal materials in the soil through short-term indoor tests. According to the principle of metal corrosion, copper - steel galvanic couple in the soil medium short will constitute a macro-corrosion of the original battery. At this point the steel is anodized, thus accelerating its corrosion in the soil. To make the steel to reach the burial process of natural buried for decades