表面技术2013，Vol.42Issue(2)：18-19,43,3.
Ni含量对热浸Zn-Al-Ni合金镀层组织和耐腐蚀性能的影响
Effect of Ni Content on Microstructure and Corrosion Resistance of Hot-dip Zn-Al-Ni Alloy Coating
摘要
Abstract
In order to improve the corrosion resistance of hot-dip galvanizing coating, the hot-dip galvanizing alloy of Zn-Al-Ni were gained on the surface of Q235 steel by adding a small amount of Ni in the Zn-0. 01% Al bath. The microstruc-tures of coatings were observed by the optical microscopy, and the corrosion resistance of coatings was characterized by full immersion corrosion test. The results show that the corrosion rate decreases firstly and then increases along with the increase of Ni content in the alloy bath. The corrosion resistance is the best for the coating when the Ni content is 0. 05%. The corrosion resistance can be enhanced by reducing the thickness of ζ phase and increasing the thickness of δ phase.关键词
Zn-Al-Ni合金/热镀锌/显微组织/耐蚀性能Key words
Zn-Al-Ni alloy/ hot-dip galvanizing/ microstructure/ corrosion resistance分类
化学化工引用本文复制引用
邵大伟,贺志荣,张永宏..Ni含量对热浸Zn-Al-Ni合金镀层组织和耐腐蚀性能的影响[J].表面技术,2013,42(2):18-19,43,3.基金项目
陕西省科技统筹创新工程计划项目(2011KTDZ01-03-06) （2011KTDZ01-03-06）
汉中锌业有限责任公司科研基金项目(HZXY2011003) （HZXY2011003）
