Ca变质处理耐候钢耐蚀性能的研究  

Study on Corrosion-resistance Properties of Calcium-modified Weathering Steel

作　　者：周志伟[1] 康永林[1] 张建[2] 马玉平[2] 崔建利[1] 

机构地区：[1]北京科技大学材料科学与工程学院,北京100083 [2]马鞍山钢铁股份有限公司,安徽马鞍山243000

出　　处：《轧钢》2008年第1期16-20,共5页Steel Rolling

摘　　要：通过盐雾腐蚀实验和周期浸润实验,采用失重法研究了Ca变质处理耐候钢的耐蚀性能,分析了其锈层结构、表面夹杂物形貌与耐蚀机理,结果表明,在盐雾腐蚀实验和周期浸润实验中耐候钢的失重率分别可达到SPHC钢的36.6%和47.9%,Ca变质处理耐候钢具有良好的耐候性能。The corrosion-resistance properties of Ca-modified weathering steel have been studied by the weight- loss method in the salt spray corrosion test and the cycle immersion corrosion test. The rust structure has been investigated by digital camera（DC）,scanning electron microscope（SEM）and X-ray diffraction （XRD）. The inclusion on the surface of Ca-modified weathering steel has been observed by SEM. The results show that the weight loss of the weathering steel is 36. 6% and 47. 9% of that of the carbon steel respectively in the salt spray corrosion test and the cycle immersion corrosion test. The ability of corrosion resistance of Ca-modified weathering steel is on a nice performance.

关 键 词：耐候钢 Ca变质处理 耐蚀性能 盐雾腐蚀 周期浸润 

分 类 号：TG142.7[一般工业技术—材料科学与工程]