Computer Simulation of Hydride Precipitation in Bi-crystalline Zirconium

机译：双晶锆中氢化物沉淀的计算机模拟

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γ-hydride precipitation and growth in a zirconium bi-crystal were simulated using a phase field kinetic model. The temporal evolution of the spatially dependent field variables is determined by numerically solving the time-dependent Ginzburg-Landau equations for the structural variables and the Cahn-Hilliard diffusion equation for the concentration variable. The morphology evolution of γ-hydride with and without external load was simulated. It is demonstrated that nucleation density of the hydride at the grain boundary increases as compared to the bulk and favorable hydride precipitation at the grain boundary become weaker when an external load is applied.

机译：使用相场动力学模型模拟了锆双晶体中γ-氢化物的沉淀和生长。通过数值求解结构变量的时间相关Ginzburg-Landau方程和浓度变量的Cahn-Hilliard扩散方程，可确定空间相关场变量的时间演化。模拟了有和没有外载荷时γ-氢化物的形貌演化。结果表明，与大块相比，晶界处氢化物的成核密度增加，当施加外载荷时，在晶界处有利的氢化物沉淀变弱。

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《Symposium on Advances in Materials Theory and Modeling―Bridging Over Multiple-Length and Time Scales, Apr 16-20, 2001, San Francisco, California》|2001年|p.AA4.14.1-14.5|共5页
会议地点 San Francisco CA(US);San Francisco CA(US)
作者
X.Q. Ma; S.Q. Shi; C.H. Woo; L.Q. Chen;
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作者单位

Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong;

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原文格式 PDF
正文语种 eng
中图分类无线电电子学、电信技术;
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专利

1. Phase-field simulation of hydride precipitation in bi-crystalline zirconium [J] . X. Q. Ma, S. Q. Shi, C. H. Woo, Scripta materialia . 2002,第4期

机译：双晶锆中氢化物沉淀的相场模拟
2. A quantitative phase field model for hydride precipitation in zirconium alloys: Part II. Modeling of temperature dependent hydride precipitation [J] . Xiao Zhihua, Hao Mingjun, Guo Xianghua, Journal of Nuclear Materials: Materials Aspects of Fission and Fusion . 2015,第Null期

机译：锆合金中氢化物沉淀的定量相场模型：第二部分。温度相关的氢化物沉淀建模
3. Phase Field Simulation of Hydride Precipitation in Zirconium [J] . Yuan-Hang He, Xiang-Hua Guo, Qing-Ming Zhang International journal of nonlinear sciences and numerical simulation . 2008,第1期

机译：锆中氢化物沉淀的相场模拟
4. Computer simulation of hydride precipitation in Bi-crystalline zirconium [C] . X. Q. Ma, S. Q. Shi, C. H. Woo, Symposium on Advances in Materials Theory and Modeling--Bridging Over Multiple-Length and Time Scales . 2001

机译：双晶锆中氢化物沉淀的计算机模拟
5. Computer simulation of morphological evolution of hydride in zirconium under applied stress. [D] . Ma, Xing-qiao. 2003

机译：应力作用下锆中氢化物形态演化的计算机模拟。
6. High-Temperature Thermodynamic Functions for Zirconium and Unsaturated Zirconium Hydrides [O] . Thomas B. Douglas 1963

机译：锆和不饱和锆氢化物的高温热力学函数
7. Computer Simulation of Hydride Precipitation in Bi-crystalline Zirconium [O] . X. Q. Ma, S. Q. Shi, C. H. Woo, 2015

机译：双晶锆中氢化物沉淀的计算机模拟
8. Habit Plane for Hydride Precipitation in Zirconium and Uranium-Zirconium [R] . F. W. Kunz, A. E. Bibb 1959

机译：锆和铀锆中氢化物沉淀的习惯平面

Computer Simulation of Hydride Precipitation in Bi-crystalline Zirconium

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