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

 

　　本發明涉及的是一種利用電化學噪聲技術測量材料局部腐蝕的方法及噪聲探頭和制法。將噪聲探頭布置在距待測材料1mm的位置處，待測材料作為工作電極，待測材料和噪聲探頭通過導線與電化學工作站相連接；所述噪聲探頭包括與待測材料完全相同的芯柱和粉末涂料密封層，所述粉末涂料密封層包于芯柱外的除端部以外的其它部位。本發明的可測量材料在無極化的自然狀態下局部腐蝕測試方法，是基于傳統電化學噪聲測試技術并結合掃描電化學顯微鏡測試原理，能夠檢測材料在自然狀態下的局部腐蝕行為，不引入任何外加信號或極化，是一種能夠實時在線、原位無損的反映材料局部腐蝕的電化學測試方法，能夠保證測得的數據是材料在自然腐蝕狀態工作下的真實結果。