ABSTRACT

This study examined the spatial characteristics of the corroded surface of weathering steel by different environmental conditions to evaluate the applicability of two accelerated corrosion tests. Two types of weathering steel were subjected to the two accelerated corrosion tests for 28, 84, and 168 days. The same materials were also exposed at two separate locations for 180 and 365 days of atmospheric exposure tests. The corrosion behavior of the weathering steel was investigated by spatial statistical analysis. The analysis suggested that the spatial properties of the corrosion of weathering steel experimented in the early stage of both accelerated corrosion tests were close to those obtained in the atmospheric exposure tests. Furthermore, the corroded surfaces experimented under the ISO 16539 Method B accelerated corrosion test demonstrated a closer resemblance to the corroded surfaces of weathering steel in real corrosion environments compared to those derived from the Cyclic Corrosion Test Method A.

摘要

本研究研究了不同环境条件下耐候钢腐蚀表面的空间特征，以评估两种加速腐蚀试验的适用性。对两种耐候钢进行了28、84和168天的两次加速腐蚀试验。同样的材料还在两个不同的地点进行了 180 天和 365 天的大气暴露测试。通过空间统计分析研究了耐候钢的腐蚀行为。分析表明，两次加速腐蚀试验早期试验的耐候钢腐蚀空间特性与大气暴露试验中获得的空间特性接近。此外，