基于<strong>PDM</strong>的<strong>304</strong>不锈钢钝化膜生长动力学研究

基于PDM的304不锈钢钝化膜生长动力学研究

毛飞雄, 周羽婷, 姚文清, 沈翔, 肖龙, 李明辉

Growth Kinetics of Steady-state Passive Film on Type 304 Stainless Steel Based on Point Defect Model

MAO Feixiong, ZHOU Yuting, YAO Wenqing, SHEN Xiang, XIAO Long, LI Minghui

图1 PDM中假设的表示点缺陷产生和湮灭的界面反应

Fig.1 Interfacial defect generation/annihilation reactions happened hypothetically in the growth of anodic barrier oxide films according to PDM. For the symbols, m is metal atom, $V_{M}^{χ'}$ is cation vacancy on the metal sublattice of the barrier layer, $M_{i}^{χ +}$ is interstitial cation, $M_{M}$ is metal cation on the metal sublattice of barrier layer, $V_{O}^{∙ ∙}$ is oxygen vacancy on the oxygen sublattice of barrier layer. $O_{O}$ is oxygen anion on the oxygen sublattice of barrier layer, $M^{δ +}$ is metal cation in solution