solid phase diffusion

The variation of the carbon diffusion coefficient at the vicinity of the phase boundary during the process of eutectic solid state phase transformation of the phase boundary was analyzed.

然后分析了碳钢在过冷等温时，相界面共格的固态相变过程中，相界面附近碳的扩散系数变化的情况；

The prepared porous material manufactured by elemental powder solid phase diffusion followed by high temperature reaction sintering process had excellent comprehensive performance.

采用元素粉末固相扩散+高温反应烧结工艺所制备的多孔材料具有优异的综合性能。

the process of alloy layer growth is found to be controlled by the non-steady state solid phase diffusion of carbon atom. a kinetic model was established thereupon.

本文研究了这一过程中表面合金层的形成和生长机制，提出碳原子在合金层中的非稳态固相扩散为该过程的控制步骤，并由此导出合金层的生长动力学数学模型。