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| Research on Evaluation Technology for Corrosion State of Seawater Piping of Warship |
| Received:April 28, 2014 Revised:May 05, 2014 |
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| DOI：10.7643/issn.1672-9242.2014.04.024 |
| KeyWord:warship seawater piping evaluation corrosion |
| Author | Institution |
| ZHANG Bo |
Qingdao Marine Corrosion Research Institute, Qingdao , China |
| LI Xiang-yang |
China Iron & Steel Research Institute Group, Beijing , China |
| DONG Cai-chang |
Qingdao Marine Corrosion Research Institute, Qingdao , China |
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| Abstract: |
| Objective To establish an evaluation index system and an evaluation method for corrosion state of seawater piping. Methods Important evaluation indexes for corrosion state of seawater piping of warship were chosen by experience,and then the appropriate evaluation methods, evaluation criteria and weights were determined. Results An evaluation index system for corrosion state of seawater piping was formed by five parameters, including the corrosion degree of pipe, the cathodic protection status, the electrical insulation protection status, the controlling state of seawater velocity, and the sealing state of sealing material. Conclusion Hierarchical-fuzzy method could be selected to evaluate the corrosion status of seawater pipeline. Analytic hierarchy process ( AHP ) was used to determine the weight of evaluation index, fuzzy comprehensive judgment method was used to handle the evaluation index value. |
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