| 熔化情况下Zr_(-4)合金包壳管氧化膜厚度变化的计算 |
| |
| 引用本文： | 张喜燕.熔化情况下Zr_(-4)合金包壳管氧化膜厚度变化的计算[J].核动力工程,1991(2). |
| |
| 作者姓名： | 张喜燕 |
| |
| 作者单位： | 长安机器厂 重庆 |
| |
| 摘 要： | 已有的研究表明,温度超过元件包壳熔点时,Zr-4合金与蒸汽在包壳表层反应所生成的ZrO_2氧化膜将对Zr-4合金熔融物本身起到一定的保护作用。因此这层氧化膜的厚度及完整性对于由堆芯元件过热及由此引起的Zr-4合金熔融物流动所导致的反应堆事故具有重要的影响。本文假定氧的扩散是ZrO_2氧化膜厚度变化的控制因素,通过解扩散方程,导出了对在这种情况下ZrO_2膜厚度变化的计算公式。
|
| 关 键 词： | 锆合金 燃料元件 堆内熔化 氧化动力学 |
Calculation of the Oxide Film Thickness Changing for Zircaloy Cladding in In-pile Meltdown Case |
| |
| Zhang Xiyan.Calculation of the Oxide Film Thickness Changing for Zircaloy Cladding in In-pile Meltdown Case[J].Nuclear Power Engineering,1991(2). |
| |
| Authors: | Zhang Xiyan |
| |
| Abstract: | Resttlts of experiments show that when in-pile temperatttre is in excess of the melt-point of zirealoy cladding the melt can be held by oxide film created from the zircaloy-steam chemical reaction. Consequently, the pile accident resulted flowing can be strongly influenced by the oxide film. By solving the diffusion equation,the formula for calcularing the oxide film changing has been established in this paper. |
| |
| Keywords: | Zircaloy Fuel element In-pile meltdown Oxidation dynamics |
| 本文献已被 CNKI 等数据库收录！ |
