ABSRACT

 

　　The invention relates to a method for detecting local corrosion of a material by an electrochemical noise technology, a noise probe and a manufacturing method of the noise probe. The noise probe is arranged at a position 1mm away from a material needing to be detected; the material needing to be detected is used as a working electrode; the material needing to be detected and the noise probe are connected to an electrochemical workstation by leads; the noise probe comprises a core column prepared from a material the same as the material needing to be detected, and also comprises a powder paint seal layer which is coated on outer parts of the core column but ends. The method can realize a local corrosion test of a measurable material in a polarization-free natural state, is based on a traditional electrochemical noise test technology and a scanning electrochemical microscope test principle, can detect local corrosion of the material in a natural state, does not introduce any additional signals or polarization, is an electrochemical test method for real-time, on-line, in-situ and lossless reflection of local corrosion of the material, and can guarantee real material test data in a natural corrosion state.

 

　　摘要

 

　　本发明涉及的是一种利用电化学噪声技术测量材料局部腐蚀的方法及噪声探头和制法。将噪声探头布置在距待测材料1mm的位置处，待测材料作为工作电极，待测材料和噪声探头通过导线与电化学工作站相连接；所述噪声探头包括与待测材料完全相同的芯柱和粉末涂料密封层，所述粉末涂料密封层包于芯柱外的除端部以外的其它部位。本发明的可测量材料在无极化的自然状态下局部腐蚀测试方法，是基于传统电化学噪声测试技术并结合扫描电化学显微镜测试原理，能够检测材料在自然状态下的局部腐蚀行为，不引入任何外加信号或极化，是一种能够实时在线、原位无损的反映材料局部腐蚀的电化学测试方法，能够保证测得的数据是材料在自然腐蚀状态工作下的真实结果。