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Effect of Ethanol Fuel and Microbiologically Influenced Corrosion on the Fatigue Crack Growth Behavior of Pipeline Steels
| 题名： | Effect of Ethanol Fuel and Microbiologically Influenced Corrosion on the Fatigue Crack Growth Behavior of Pipeline Steels |
| 作者： | Sowards, J. W.; Weeks, T. D.; McColskey, J. D.; Fekete, J. R.; Williamson, C.; Jain, L. |
| 关键词： | Ethanols##Microbiological effects##Corrosion##Fatigue crack growth##Pipeline steels##Acid producing bacteria##Alloys##Biofuels##Energy consumption##Exposure##Natural gas pipelines##Storage tanks## |
| 摘要： | Ethanol fuel production and consumption are expected to increase significantly in the near future. Existing pipeline infrastructure could be repurposed to transport ethanol and other biofuels from production sources, such as those located in the Midwest, to end users across the country. The effects of ethanol fuel, including its ability to harbor corrosion-inducing microbiological life, are not well established in relation to degrading the fatigue properties of pipeline materials. In this work experiments were performed to evaluate crack growth behavior of pipeline steels in several ethanol environments. The environments included a simulated fuel grade ethanol and an ethanol-water solution inoculated with a microbiological species (Acetobacter aceti) isolated from industrial ethanol storage tanks. Fatigue crack growth rates of API 5L X52 and X70 pipeline steels were determined as a function of the stress intensity amplitude during exposure to the various ethanol environments. |
| 总页数： | 16 |
| 报告类型： | 科技报告 |
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