| 高温蠕变空位凝聚区的凝聚扩散 |
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| 引用本文： | 张平,彭凡.高温蠕变空位凝聚区的凝聚扩散[J].固体力学学报,1997,18(3):195-203. |
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| 作者姓名： | 张平 彭凡 |
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| 作者单位： | 湘潭大学流变力学研究所!湘潭，411105(张平，马石城，刘忠)，湖南大学应用力学系!长沙，410082(彭凡) |
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| 摘 要： | 讨论局域凝聚扩散现象，导出局域凝聚扩散方程并给出了解的存在唯一性定理，对凝聚－扩散方程的稳定性的分析获得结论，定态解的稳定性由凝聚函数控制，并导出一元系统和二元系统的失稳临界条件表达式。
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| 关 键 词： | 高温 蠕变 空位凝聚 稳定性 凝聚扩散方程 |
CONDENSATION-DIFFUSION OF VACANCY CONDENSATION ZONE AT HIGH TEMPERATURE |
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| Zhang Ping, Peng Fan, Ma Shicheng, Liu Zhong.CONDENSATION-DIFFUSION OF VACANCY CONDENSATION ZONE AT HIGH TEMPERATURE[J].Acta Mechnica Solida Sinica,1997,18(3):195-203. |
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| Authors: | Zhang Ping Peng Fan Ma Shicheng Liu Zhong |
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| Abstract: | The phenomena of local condensation-diffusion is discussed in this paper. The local condensation-diffusion equation is deduced and the existence and uniqueness of its solution are proved. The stability analysis for the condensation-diffusion equation shows that the stability in the steady-state solution is controlled by the condensing function. The expression of critical condition for instability is presented in monobasic and binary system. |
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| Keywords: | high temperature creep vacancy condensation diffusion stability |
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