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(fā)明涉及的是一種利用電化學(xué)噪聲技術(shù)測(cè)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(cè)材料1mm的位置處，待測(cè)材料作為工作電極，待測(cè)材料和噪聲探頭通過導(dǎo)線與電化學(xué)工作站相連接；所述噪聲探頭包括與待測(cè)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(fā)明的可測(cè)量材料在無極化的自然狀態(tài)下局部腐蝕測(cè)試方法，是基于傳統(tǒng)電化學(xué)噪聲測(cè)試技術(shù)并結(jié)合掃描電化學(xué)顯微鏡測(cè)試原理，能夠檢測(cè)材料在自然狀態(tài)下的局部腐蝕行為，不引入任何外加信號(hào)或極化，是一種能夠?qū)崟r(shí)在線、原位無損的反映材料局部腐蝕的電化學(xué)測(cè)試方法，能夠保證測(cè)得的數(shù)據(jù)是材料在自然腐蝕狀態(tài)工作下的真實(shí)結(jié)果。