(1. 北京科技大学 腐蚀与防护中心，北京 100083;
2. 腐蚀与防护教育部重点实验室，北京 100083;
3. 中国科学院 宁波材料技术与工程研究所，宁波 315201)
摘 要: 采用周浸加速腐蚀试验模拟纯锌在热带海洋大气环境的腐蚀行为，通过对比腐蚀形貌、腐蚀产物、腐蚀动力学等定性和定量地评价周浸试验与户外大气暴露腐蚀试验的相关性。结果表明:周浸腐蚀试验后，纯锌的腐蚀形貌、腐蚀产物组成及腐蚀动力学均与实际海洋大气环境暴露结果具有较好的相关性;通过灰色关联分析法分析发现采用2%NaCl溶液模拟万宁大气、5%NaCl溶液模拟西沙大气兼具模拟性和加速性;采用周浸加速腐蚀试验方法建立纯锌在万宁、西沙两种海洋大气环境下服役的耐蚀寿命预测模型，分别为Twn=95.23t 1.01、Txs= 841.60t 0.16。
关键字: 海洋大气腐蚀;室内加速腐蚀;相关性;加速性;耐蚀寿命预测
（1. Corrosion and Protection Center, University of Science and Technology Beijing, Beijing 100083, China;
2. Key Laboratory for Corrosion and Protection, Beijing 100083, China;
3. Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China）
Abstract:The corrosion behavior of pure zinc in tropic marine environment was simulated by cyclic immersion test, the correlation between cyclic immersion test and outdoor atmospheric test was evaluated qualitatively and quantitatively by comparing the corrosion morphologies, corrosion products and corrosion kinetics. The results show that the corrosion morphologies, compositions of corrosion products and corrosion kinetics after cyclic immersion test are in good correlation after the real atmospheric test. By Grey correlation method, using 2%NaCl solution to simulate Wanning atmosphere and using 5%NaCl solution to simulate Xisha atmosphere meet both simulation and acceleration. The corrosion life-span prediction method of pure zinc in two kinds of marine atmospheric environment is built by cyclic immersion experiments:Twn=95.23t1.01, Txs=841.60t0.16.
Key words: marine atmospheric corrosion; indoor accelerated corrosion; simulation; acceleration; corrosion prediction
