材料科学与工程学报2025，Vol.43Issue(1)：9-15,7.DOI:10.14136/j.cnki.issn1673-2812.2025.01.002
超高强热镀锌钢丝的腐蚀行为
Corrosion of Ultra-high Strength Hot-dip Galvanized Steel Wires
摘要
Abstract
A dry-wet cyclic corrosion test with artificial seawater solution was carried out on ultra-high strength hot-dip galvanized steel wires(USHGSWs)to simulate the tropical marine splash zone.The corrosion degree of steel wires was evaluated based on the mass loss and corrosion depth.The crystal structure and element content of corrosion products were determined by X-ray diffraction(XRD),scanning electron microscopy(SEM)and energy dispersive spectroscopy(EDS).The corrosion mechanism of galvanized steel wires in a simulated marine splash zone was analyzed.The results show that in the early stage,pitting corrosion was observed on the surface of the galvanized steel wire,and then the pits were connected to each other and expanded with prolonged test time.The main corrosion products were NaZn4(OH)6SO4Cl·6H2O,ZnO,and Zn5(OH)6(CO3)2.The mass loss ratio of steel wire and corrosion days conform to a quadratic function,and the average corrosion depth meets a power function with time.Compared with available test results,it is found that the accelerated corrosion test results exhibit larger mass loss and deeper corrosion depth of steel wires.The mass loss ratio under the same corrosion time was about 20.7-25.4 times that of this test,and the corrosion depth was about 36 times that of this test.The corrosion kinetics model of galvanized steel wires proposed in this paper and the corrosion products generated based on artificially simulated marine splash zone were consistent with the actual marine environment.关键词
热镀锌钢丝/人造海水/盐雾实验/腐蚀产物Key words
Hot-dip galvanized steel wire/Artificial Seawater/Spray test/Corrosion Products分类
土木建筑引用本文复制引用
张菊辉,吕刚,衣存浩,管仲国..超高强热镀锌钢丝的腐蚀行为[J].材料科学与工程学报,2025,43(1):9-15,7.基金项目
国家自然科学基金项目(51408359,52278527,52478536) （51408359,52278527,52478536）
