Model Modules to Assist Assessing and Controlling Stress Corrosion Cracking (SCC)
| 项目名称： | Model Modules to Assist Assessing and Controlling Stress Corrosion Cracking (SCC) |
| 摘要： | Validation of the newly available direct assessment methodologies for both external corrosion and stress-corrosion cracking; development of improved modules for assisting operators with controlling the parameters that cause stress-corrosion cracking; approaches for improving the integrity of systems with wrinklebends and buckles; and a viable approach to running fracture that should help operators minimize its consequences when ruptures occur. Specific goals of the project are to: (1) develop and validate a mechanism for near neutral stress corrosion cracking (NNSCC) that reflects operational and right-of-way scenarios typical of US pipelines; (2) quantify field characteristics in terms of cracking colonies and pipeline operation for line pipe from X52 thru X65; (3) establish hydrostatic retest protocols to assist in controlling high pH SCC in terms of pipeline operation represented by compressor discharge pressure and temperature for line pipe from X52 thru X65; (4) package the high pH SCC model in user-friendly format, including graphical-user interface to provide output indicative of integrity implications related to hydrostatic retesting; and (5) quantify hydrogen evolution and establish relationships between hydrogen and evolution of microplastic strain, as basis to establish related kinetics for NNpHHSCC. This is a consolidated project with Project No 162, Project No 164, and Project No 165. |
| 状态： | Completed |
| 资金： | 365887.00 |
| 资助组织： | Pipeline and Hazardous Materials Safety Administration |
| 项目负责人： | Merritt, James |
| 执行机构： | Battelle Memorial Institute |
| 开始时间： | 20041208 |
| 实际结束时间： | 20090206 |
| 主题领域： | Maintenance and Preservation；Pipelines |
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