Using Fuzzy Comprehensive Evaluation to Internal Corrosion Degree of Gas Pipeline

When corrosion mechanism is studied for internal corrosion of gas corrosion of gas pipeline, the internal corrosion degree of pipeline should be evaluated. The quantitative evaluation to gas pipeline is the base to know about the residual strength evaluation, residual lifetime prediction and reliability analysis. In this paper, fuzzy comprehensive evaluation method is used to evaluate the internal degree of gas pipeline and the field examples are provided to verify the feasibility of this method.