加氢反应器氢致开裂的有限元分析

本文以高温高压气相充氢试验为基础，采用有限元方法来模拟计算钢中的氢扩散及氢浓度变化规律，分析不同的冷却过程对材料氢致开裂的影响，结果表明，冷却速度越大，残留的氢浓度越高，加氢反应器越易发生氢致开裂。

Analysis on theHydrogen-Induced Cracking in Hydrogenation Reactors

Based on the autoclave experiment under elevated temperatures,a finite element analysis (FEA) is adopted to simulate the distribution of hydrogen cocentration and the process of hydrogen diffusion.It has been illustrated that the larger the cooling speed,the higher the residual hydrogen concentration remains,and the easier hydrogenation reactors begin cracking.