海南滨海大气环境热浸镀锌钢室内外试验相关性分析

doi:10.11902/1005.4537.2025.248

中国腐蚀与防护学报

2026, Vol. 46

Issue (4): 1129-1138 CSTR: 32134.14.1005.4537.2025.248 DOI: 10.11902/1005.4537.2025.248

研究报告

本期目录 | 过刊浏览

海南滨海大气环境热浸镀锌钢室内外试验相关性分析

赵梓恒¹, 李波¹, 杨臻², 钱旺³, 于浩¹, 张昊¹, 易盼², 陈俊航¹, 尹程辉¹, 肖葵¹(

)

^1.北京科技大学新材料技术研究院北京 100083
^2.国网电力工程研究院有限公司输变电工程技术研究所北京 100055
^3.福建省三川海上风电有限公司莆田 351199

Correlation Analysis Between Indoor Test and Outdoor Test in Hainan Coastal Atmospheric Environment for Hot-dip Galvanized Steel

ZHAO Ziheng¹, LI Bo¹, YANG Zhen², QIAN Wang³, YU Hao¹, ZHANG Hao¹, YI Pan², CHEN Junhang¹, YIN Chenghui¹, XIAO Kui¹(

)

^1.Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China
^2.Power Transmission and Transformation Engineering and Technology Department, State Grid Electric Power Engineering Research Institute Co. Ltd., Beijing 100055, China
^3.Fujian Sanchuan Offshore Wind Power Co. Ltd., Putian 351199, China

引用本文:

赵梓恒, 李波, 杨臻, 钱旺, 于浩, 张昊, 易盼, 陈俊航, 尹程辉, 肖葵. 海南滨海大气环境热浸镀锌钢室内外试验相关性分析[J]. 中国腐蚀与防护学报, 2026, 46(4): 1129-1138.
Ziheng ZHAO, Bo LI, Zhen YANG, Wang QIAN, Hao YU, Hao ZHANG, Pan YI, Junhang CHEN, Chenghui YIN, Kui XIAO. Correlation Analysis Between Indoor Test and Outdoor Test in Hainan Coastal Atmospheric Environment for Hot-dip Galvanized Steel[J]. Journal of Chinese Society for Corrosion and protection, 2026, 46(4): 1129-1138.

全文: PDF(8306 KB) HTML

摘要:

开展海南滨海大气环境暴露试验和环境谱腐蚀加速试验，采用失重法建立腐蚀预测模型，并利用扫描电镜(SEM)观察试样表面的腐蚀形貌，用X射线衍射仪(XRD)分析腐蚀产物的组成成分，同时进行电化学测试以探究不同试验时间热浸镀锌钢的电化学行为。结果表明，热浸镀锌钢在海南滨海大气环境暴露2 a和环境谱加速试验2.5个周期后，其表面没有红锈产物，主要腐蚀形式为镀锌层的均匀腐蚀，且腐蚀预测模型符合幂函数模型。室内外试验的腐蚀产物均主要由ZnO和Zn₅(OH)₈Cl₂·H₂O组成。随实验时间的延长，腐蚀电位不断增大，腐蚀电流密度则持续减小，表明在热浸镀锌钢表面生成的腐蚀产物有效阻碍了腐蚀的进行，提升了材料的保护性。综合室内外试验，腐蚀动力学规律、腐蚀产物组成与腐蚀电化学机理，针对海南滨海大气环境设计的环境谱加速试验具有良好的相关性。

关键词 ：海南滨海大气环境, 加速腐蚀, 热浸镀锌钢, 相关性, 腐蚀预测模型

Abstract：

The corrosion behavior of hot-dip galvanized steel in the tropical marine atmosphere of the Hainan coastal area was investigated through exposure tests in the natural Hainan coastal atmospheric environment and indoor spectrum-accelerated corrosion tests. Meanwhile, a corrosion prediction model was established based on the mass loss measurement results. The corrosion morphology and phase composition of the test steel surface were characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The electrochemical behavior of the hot-dip galvanized steel at different test durations was also examined by electrochemical means. The results indicate that after atmospheric exposure in Hainan for 2 a and spectrum-accelerated testing for 2.5 cycles, no reddish rust products were observed on the galvanized steel surface. The primary form of corrosion was uniform corrosion of the zinc coating. The corrosion kinetics followed a power function model. The corrosion products formed on the galvanized steel by both outdoor exposure and laboratory accelerated tests consisted mainly of ZnO and Zn₅(OH)₈Cl₂·H₂O. The corrosion potential increased with test duration, while the corrosion current density continuously decreased. This demonstrates that the corrosion products formed on the surface of the hot-dip galvanized steel effectively inhibited the corrosion process, thereby providing good protectiveness for the galvanized steel. Based on the comprehensive analysis of indoor and outdoor corrosion kinetics, corrosion product composition, and electrochemical mechanisms, it follows that the results of the environmental spectrum accelerated test designed for the coastal atmospheric environment of Hainan have a good correlation with the actual exposure test results in the coastal atmospheric environment of Wenchang district of Hainan Province.

Key words： Hainan coastal atmospheric environment accelerated corrosion hot-dip galvanized steel correlation analysis corrosion prediction model

收稿日期: 2025-08-03 32134.14.1005.4537.2025.248

ZTFLH:

TG174.3

基金资助:国家电网公司总部科技项目(5200-202355145A-1-1-ZN)

通讯作者: 肖葵，E-mail：xiaokui@ustb.edu.cn，研究方向为金属材料大气腐蚀行为与机理研究，材料服役环境损伤机理和环境腐蚀评价及电子材料环境损伤行为与防护工艺

Corresponding author: XIAO Kui, E-mail: xiaokui@ustb.edu.cn

作者简介: 赵梓恒，男，2001年生，博士生

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https://www.jcscp.org/CN/10.11902/1005.4537.2025.248 或 https://www.jcscp.org/CN/Y2026/V46/I4/1129

图1 海南滨海大气环境谱加速试验方法

图2 热浸镀锌钢在户外暴露不同时间后去除腐蚀产物的3D共聚焦扫描电镜图像

图3 热浸镀锌钢在户外暴露不同时间后的表面SEM微观形貌和腐蚀产物XRD谱

图4 热浸镀锌钢在环境谱加速试验不同周期后去除腐蚀产物的3D共聚焦扫描电镜图像

图5 热浸镀锌钢在环境谱加速试验不同周期后的SEM微观形貌和腐蚀产物XRD谱

图6 热浸镀锌钢在海南滨海大气环境室内外试验的腐蚀动力学变化规律对比

表1 热浸镀锌钢在海南滨海大气环境室内外试验后的腐蚀失重数据

表2 热浸镀锌钢在海南滨海大气环境室内外试验后的腐蚀失重数据的初值化处理

表3 热浸镀锌钢在海南滨海大气环境室内外试验后的腐蚀失重数据绝对差

图7 热浸镀锌钢在海南滨海大气环境暴露试验和环境谱加速试验后的动电位极化曲线

表4 热浸镀锌钢在海南滨海大气环境暴露试验不同时间后的动极化曲线拟合数据

表5 热浸镀锌钢在环境谱加速试验不同周期后的动极化曲线拟合结果

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