在实验室制得了V2复合型气相缓蚀剂 ,采用静态、动态粉末法、密闭空间挥发减量试验、现场保护试验等方法进行了性能评价 ,并采用模拟大气腐蚀状态的电化学测试技术对其缓蚀机理进行了初步研究。结果表明 ,V2是一种性能优良、有实用前景的钢用气相缓蚀剂 The V2 composite vapor-phase corrosion inhibitor was prepared in the laboratory. The performance was evaluated by static, dynamic powder method, volatile reduction in confined space, field protection test and other methods. The electrochemical corrosion test Corrosion inhibition mechanism of a preliminary study. The results show that V2 is a good performance, practical prospects of the vapor phase corrosion inhibitor