锆合金氧化膜中相变与裂纹演化的相场模拟

王小齐, 张金虎, 郭辉, 李学雄, 许海生, 柏春光, 徐东生, 杨锐

Phase-Field Simulations of Phase Transformation and Crack Evolution in Zirconium Alloy Oxide Film

WANG Xiaoqi, ZHANG Jinhu, GUO Hui, LI Xuexiong, XU Haisheng, BAI Chunguang, XU Dongsheng, YANG Rui

表2 弹性能计算所需相关参数^[24]

Table 2 Parameters employed in elastic energy calculation^[24]

Parameters	Symbol	Value
Young's modulus of t-ZrO₂	$E_{t}$	212 GPa
Young's modulus of m-ZrO₂	$E_{m}$	241 GPa
Poisson's ratio of t-ZrO₂	$ν_{t}$	0.33
Poisson's ratio of m-ZrO₂	$ν_{m}$	0.29
Eigenstrain of t-ZrO₂	$ε_{i j}^{0}$ (t-ZrO₂)	$[\begin{matrix} 0.0049 & 0.0761 \\ 0.0761 & 0.0180 \end{matrix}]$
Eigenstrain of m-ZrO₂	$ε_{i j}^{0}$ (m-ZrO₂)	$[\begin{matrix} 0.0049 & - 0.0761 \\ - 0.0761 & 0.0180 \end{matrix}]$
Eigenstrain of t-ZrO₂ (after 90° rotation about Y axis)	$ε_{i j}^{0'}$ (t-ZrO₂)	$[\begin{matrix} 0 & 0.0761 \\ 0 & 0.0180 \end{matrix}]$
Eigenstrain of m-ZrO₂ (after 90° rotation about Y axis)	$ε_{i j}^{0'}$ (m-ZrO₂)	$[\begin{matrix} 0 & - 0.0761 \\ 0 & 0.0180 \end{matrix}]$