Discuss the key factors considered in metal corrosion analysis

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Sometimes, when analyzing the corrosion and degradation of metals, we do not take all relevant factors into consideration, which inevitably leads to inaccurate conclusions; therefore, a comprehensive approach should be adopted when analyzing metal corrosion and degradation. Since metal corrosion is caused by various internal and external factors, the main ones can be summarized as follows: ① The chemical composition and structure of the metal material itself ； ②Metal surface finish (oxygen concentration difference cell corrosion) ； ③Components of the solution in contact with the metal surface and pH value ； ④Ambient temperature and humidity ； ⑤Various environmental media in contact with the metal surface. By comprehensively considering the above five aspects in the analysis of the causes of metal corrosion, reliable conclusions can be drawn. Of course, if one understands the properties and application ranges of protective materials, the problem of metal corrosion can be solved.