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Survey of the degradation modes of candidate materials for high-level radioactive waste disposal containers. Final report
| 题名： | Survey of the degradation modes of candidate materials for high-level radioactive waste disposal containers. Final report |
| 作者： | Bullen, D.B.;Vinson, D.W.; |
| 关键词： | 05 NUCLEAR FUELS ;42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES;36 MATERIALS SCIENCE; HIGH-LEVEL RADIOACTIVE WASTES; UNDERGROUND DISPOSAL; CONTAINMENT; CONTAINERS; DESIGN; ALLOYS; CORROSION; MONEL 400; CARBON STEELS; PROGRESS REPORT; TEMPERATURE DEPENDENCE; HEAT TRANSFER; MOISTURE |
| 摘要： | One of the most significant factors impacting the performance of waste package container materials under repository relevant conditions is the thermal environment. This environment will be affected by the areal power density of the repository, which is dictated by facility design, and the dominant heat transfer mechanism at the site. The near-field environment will evolve as radioactive decay decreases the thermal output of each waste package. Recent calculations (Buscheck and Nitao, 1994) have addressed the importance of thermal loading conditions on waste package performance at the Yucca Mountain site. If a relatively low repository thermal loading design is employed, the temperature and relative humidity near the waste package may significantly affect the degradation of corrosion allowance barriers due to moist air oxidation and radiolytically enhanced corrosion. The purpose this report is to present a literature review of the potential degradation modes for moderately corrosion resistant nickel copper and nickel based candidate materials that may be applicable as alternate barriers for the ACD systems in the Yucca Mountain environment. This report presents a review of the corrosion of nickel-copper alloys, summaries of experimental evaluations of oxidation and atmospheric corrosion in nickel-copper alloys, views of experimental studies of aqueous corrosion in nickel copper alloys, a brief review of galvanic corrosion effects and a summary of stress corrosion cracking in these alloys. |
| 总页数： | 59p |
| 报告类型： | 科技报告 |
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