The mechanical properties of protective rust layer of weathering steel were evaluated by means of micro- indentation testing.

通过连续加载超显微硬度压痕试验测试了耐候钢表面保护性锈层的承载能力。

According to the analysis of EIS the weathering steel with high Cr content was cov-ered by a more compact and effective corrosion product film with higher resistance to ions migration.

电化学阻抗谱分析结果则显示高铬耐候钢具有较致密有效的腐蚀产物膜，抵御离子传导能力增强。

The weathering steel has been widely applied to bridges in the developed countries in Europe, America and in Japan owing to its good corrosion resistance behavior and life-cycle costing.

耐候性钢材以其耐腐蚀性能和全寿命成本经济性在欧美、日本等发达国家广泛应用于桥梁工程。