采用周浸腐蚀试验模拟海洋大气环境，通过对比钢在室内和室外环境中的腐蚀形貌、腐蚀产物、腐蚀动力学及腐蚀机理等，定性和定量地评价了模拟加速试验和大气暴露试验的相关性。结果表明,周浸腐蚀试验后钢的腐蚀形貌、腐蚀产物组成与实际海洋大气暴露结果相关性好; 周浸腐蚀试验的参数需要考虑金属实际服役环境的环境因素，不同环境因素对腐蚀的影响具有协同作用; 采用周浸腐蚀试验模拟实际海洋大气环境具有优异的加速性。

The correlation of indoor cyclic immersion corrosion test and outdoor marine atmospheric corrosion test was studied by comparing and evaluating the corrosion morphologies, corrosion products, corrosion kinetics and corrosion mechanism quantitatively and qualitatively. The results showed that the corrosion morphologies and compositions of corrosion products after cyclic immersion test agreed with those after the real atmospheric test. In addition, the environment factors especially atmospheric humidity and pollution need to be considered in cyclic immersion test, because of the synergy between different environment factors. The cyclic immersion corrosion test had good acceleration in simulating the actual marine atmospheric environment.