铸造技术2017，Vol.38Issue(6)：1356-1359,4.DOI:10.16410/j.issn1000-8365.2017.06.028
空调通风管道用镀锌钢板的耐腐蚀性能研究
Study on Corrosion Resistance of Galvanized Steel Sheet for Ventilating Duct in Air Conditioning
钱建华 1王海霞2
作者信息
- 1. 内蒙古交通职业技术学院建筑工程系,内蒙古赤峰024005
- 2. 吉林大学材料学院,吉林长春130000
- 折叠
摘要
Abstract
The corrosion morphology and electrochemical properties of a hot-dip galvanized steel strip in different pH solution was analyzed by means of SEM,electrochemical,EDS and XRD methods.The results show that the surface coating and the base plate are in good combination,the thickness of galvanized layer is about 65 μm;the corrosion potential and corrosion current density has not obvious regularity in different pH solution.When the pH value increases from 12.5 to 13.5,the corrosion current density increase,and the corrosion resistance of the pipeline is reduced.The pipeline section morphology from substrate to galvanized layer respectively is Fe elements (α-Fe),Fe3Zn10 phase (Γ),FeZn7 (δ),FeZn13 (ζ) and Zn (η) layers.The surface corrosion products of the steel are mainly ZnO and lamellar crystal Ca[Zn (OH)3]2· 2H2O.关键词
pH值/空调通风管道/镀锌层/电化学/腐蚀形貌Key words
pH value/air conditioning ventilation/zinc coating/electrochemical/corrosion morphology分类
金属材料引用本文复制引用
钱建华,王海霞..空调通风管道用镀锌钢板的耐腐蚀性能研究[J].铸造技术,2017,38(6):1356-1359,4.
