Emran Khadijah M, Omar Inam M A, Arab Sanaa T, Ouerfelli Noureddine
Chemistry Department, College of Science, Taibah University, Al-Madinah, Saudi Arabia.
Chemistry Department, Faculty of Sciences, Al-Faisaliah, King Abdulaziz University, Jeddah, Saudi Arabia.
Sci Rep. 2022 Apr 19;12(1):6432. doi: 10.1038/s41598-022-10462-y.
Temperature plays an important role in promoting the corrosion of metals. The Arrhenius plot can interpret the corrosion rate-temperature dependence, where the Arrhenius behavior gives a geometrical meaning and makes explicit a positive or negative linear dependence of charge transitivity and temperature. In addition, according to the Arrhenius interpretation, it represents the energy that the molecule in the initial state of the process must acquire before it can take part in the reaction, whether it is a physical, or a chemical process. Taking into account the deviation from the linearity, we have extended the Arrhenius-type expression by one term in 1/T and we have given some physical meaning to the new related coefficients for which it is found that they depend closely on the number of acid hydrogen atoms in the polyacid for the corrosion and passivation of the Nickel based metallic glass alloy of the composition NiCrFeSiB. Moreover, we can consider that the deviation to the Arrhenius linear behavior as a super-Arrhenius behavior In addition, a mathematical analysis of the trend of experimental scatter points of the charge transfer resistance with temperature permits us to reveal an interesting homographic behavior which leads us to suggest an original empirical model with only two optimal adjustable parameters, as well as a new pseudo-power dependence of the number of hydrogen atoms in the polyacid.
温度在促进金属腐蚀方面起着重要作用。阿仑尼乌斯图可以解释腐蚀速率与温度的依赖关系，其中阿仑尼乌斯行为具有几何意义，并明确了电荷传递性与温度的正或负线性依赖关系。此外，根据阿仑尼乌斯解释，它代表了过程初始状态下分子在参与反应之前必须获得的能量，无论是物理过程还是化学过程。考虑到与线性关系的偏差，我们在1/T中增加了一项对阿仑尼乌斯型表达式进行了扩展，并赋予了新的相关系数一些物理意义，发现它们与用于NiCrFeSiB成分的镍基金属玻璃合金腐蚀和钝化的多酸中酸氢原子的数量密切相关。此外，我们可以将对阿仑尼乌斯线性行为的偏差视为超阿仑尼乌斯行为。此外，对电荷转移电阻随温度变化的实验散点趋势进行数学分析，使我们能够揭示一种有趣的单应性行为，这促使我们提出一个仅具有两个最佳可调参数的原始经验模型，以及多酸中氢原子数量的一种新的伪幂依赖关系。
