公开(公告)号：US4800165A

公开(公告)日：1989-01-24

申请号：US1734

申请日：1987-01-09

申请人： Tomoki Oka ,  Hiroshi Kihira ,  Kazumi Matsuoka ,  Satoshi Ito

发明人： Tomoki Oka ,  Hiroshi Kihira ,  Kazumi Matsuoka ,  Satoshi Ito

IPC分类号： G01N27/02 ,  G01N17/00 ,  G01N17/02 ,  G01N27/26 ,  G01N31/00 ,  G01R27/02

CPC分类号： G01N17/02

摘要： A method of detecting the rate of corrosion of an existing steel structure installed in a corrosive environment is disclosed. The method includes treating a measurement surface of the member so that an AC impedance of the measurement surface, when electrochemically measured at a predetermined high frequency range of potential variation applied to the measured surface, takes a first valve within a predetermined range; and second value of the impedance is then electrochemically measured at a low frequency range of potential variation applied thereto. The difference between the first and second values is calculated to detect the corrosion-reaction resistance of the surface and the rate of corrosion is determined on the basis of the detected corrosion-reaction resistance and according to a pre-calculated relation between the rate of corrosion and the corrosion-reaction resistance.

摘要翻译： 公开了一种检测安装在腐蚀环境中的现有钢结构的腐蚀速率的方法。 该方法包括处理部件的测量表面，使得当在施加到测量表面的电位变化的预定高频范围内电化学测量时，测量表面的AC阻抗将第一阀门置于预定范围内; 然后在施加到其上的电位变化的低频范围内电化学地测量阻抗的第二值。 计算第一和第二值之间的差异以检测表面的耐腐蚀反应性，并且基于所检测的耐腐蚀反应性和根据预测的腐蚀速率之间的关系确定腐蚀速率 和耐腐蚀反应性。