|
| Corrosion Reliability Assessment Method of Solid Hydrogen Storage Materials Based on Simulation Model |
| Received:January 30, 2024 Revised:March 26, 2024 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2024.06.017 |
| KeyWord:organic coatings hydrides corrosion coupled simulation multi-physics molding reliability assessment |
| Author | Institution |
| ZHANG Hao |
School of Civil Engineering, Southwest University of Science and Technology, Sichuan Mianyang , China |
| XIE Chaoyang |
Shock and Vibration of Engineering Materials and Structures Key Laboratory of Sichuan Province, Sichuan Mianyang , China |
|
| Hits: |
| Download times: |
| Abstract: |
| The work aims to model and evaluate the corrosion reliability of coating-containing metal hydride hydrogen storage structures to support the reliability design and preventive maintenance of solid-state hydrogen storage structures. A multi-physics simulation model of corrosion failure was established by analyzing the physicochemical process of corrosion of coating-containing metal hydride substrate structures and the affecting factors were analyzed. Based on the data generated by the simulation model, the deliquescent property degradation of the coating-containing metal hydride structure was discretized into several states, and a Markov model of multi-state degradation was established for corrosion reliability assessment. The results of the significance analysis of the effects of coating porosity, coating thickness, relative humidity, and ambient temperature on the corrosion reliability of solid-state hydrogen storage structures were obtained, and the corrosion reliability of organic coating-containing hydride structures was evaluated at different temperature, humidity, and parameter of the protective materials by the proposed method. The change of coating porosity has the most critical effect on the corrosion reliability of solid-state hydrogen storage materials, and the corrosion reliability assessment method of solid-state hydrogen storage materials established based on the failure physical model and multi-state reliability theory in this work can realize the assessment of long-term corrosion reliability of hydrogen storage materials, and it has good applicability to the corrosion reliability of metal hydrides, etc. |
| Close |
|
|
|