冷轧变形对镀Ni-Co钢带耐腐蚀性能的影响  

Effect of Cold Rolling Deformation on the Corrosion Resistance of Electrodeposited Ni-Co Coating/Steel-Strip

作　　者：贺军[1] 潘勇[1,2] 王建兴[1] 王孝广[1] 周兆锋[1,2] 

机构地区：[1]湘潭大学低维材料及其应用技术教育部重点实验室材料与光电物理学院,湖南湘潭411105 [2]湖南利德材料科技股份有限公司,湖南株洲412000

出　　处：《材料保护》2008年第12期54-56,共3页Materials Protection

基　　金：国家863引导项目(2005AA01210);湖南省科技计划重点项目(2008GK2001)

摘　　要：为了获得高性能的合金镀层薄膜材料,采用电沉积法制备了Ni-Co合金镀层薄膜,对镀层的钴含量、表面形貌及冷轧变形下的耐腐蚀性能进行了研究。结果表明:当镀液中硫酸钴含量为2g/L时,合金镀层中的钴含量约为3.89%,镀层表面光亮、结晶致密;冷轧变形量为2%～4%时,镀Ni-Co合金薄膜钢带的耐腐蚀性能得到提高,变形量超过4%后其耐腐蚀性能降低。这说明小的冷轧变形能有效地提高镀层的耐腐蚀性能。Ni-Co alloy coating was prepared by electrodeposition. The Co content and morphology of the coating and the effect of cold rolling deformation on the corrosion resistance of electrodeposited Ni-Co coating steel-strip were studied. Results showed that the alloy coating prepared from the bath containing 2 g/L cobalt sulfate had a cobalt content of 3.89 % , and the surface of the coating was bright and fine. At the same time, the corrosion resistance of the coating was improved by cold rolling deformation within a range of 2 %-4 % , while the deformation beyond 4 % led to decreased corrosion resistance of the coating, indicating that small cold rolling deformation was helpful to effectively improve the corrosion resistance of the Ni-Co alloy coating.

关 键 词：电沉积镍钴合金 耐腐蚀性能 冷轧变形 

分 类 号：TG174[金属学及工艺—金属表面处理]