首页> 外文期刊>ISIJ international >FEM Analysis for Sinusoidal Perturbation of Hydrogen Permeation into a Steel Sheet
【24h】

FEM Analysis for Sinusoidal Perturbation of Hydrogen Permeation into a Steel Sheet

机译:钢板中氢的正弦扰动的有限元分析

获取原文
获取原文并翻译 | 示例
           

摘要

Numerical calculation for the diffusion problem of hydrogen absorbed in a steel sheet during hydrogen permeation measurement using a double electrochemical cell was carried out. The finite element method (FEM) was applied to obtain the concentration distribution of hydrogen expressed by one- or two-dimensional Fick's laws in the sheet, assuming that hydrogen concentration at the hydrogen entry interface was perturbed sinusoidally and both the hydrogen entry and exit reactions were in a mass-transport controlled process. From a comparison with experimental results reported previously, in which a phase shift from entry current to exit current waves observed on a single grain of the specimen sheet was at least two-times larger than that on two grains, it was estimated that the diffusion coefficient at a grain boundary located between two grains was five orders in magnitude larger than that on a single grain.
机译:使用双电化学电池对氢渗透测量期间钢板中吸收的氢的扩散问题进行了数值计算。应用有限元方法(FEM)来获得由一维或二维Fick定律表示的片材中氢的浓度分布,假设氢进入界面处的氢浓度呈正弦扰动,并且氢的出入反应均呈正弦扰动处于大规模运输控制过程中。通过与先前报道的实验结果进行比较,在该实验结果中,在试样片的一个晶粒上观察到的从进入电流到出射电流的相移至少是在两个晶粒上观察到的相差至少两倍。位于两个晶粒之间的晶界比单个晶粒大五个数量级。

著录项

  • 来源
    《ISIJ international》 |2016年第3期|472-477|共6页
  • 作者单位

    Graduate School of Chemical Sciences and Engineering, Hokkaido University, Kita-13 Jo, Nishi-8 Chome, Kita-ku, Sapporo 060-8628, Japan;

    Faculty of Engineering, Hokkaido University, Kita-13 Jo, Nishi-8 Chome, Kita-ku, Sapporo 060-8628, Japan;

    Faculty of Engineering, Hokkaido University, Kita-13 Jo, Nishi-8 Chome, Kita-ku, Sapporo 060-8628, Japan;

    Faculty of Engineering, Hokkaido University, Kita-13 Jo, Nishi-8 Chome, Kita-ku, Sapporo 060-8628, Japan;

    Faculty of Engineering, Hokkaido University, Kita-13 Jo, Nishi-8 Chome, Kita-ku, Sapporo 060-8628, Japan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    hydrogen permeation; Devanathan-Stachurski cell; diffusion; finite element method (FEM); grain boundary;

    机译:氢渗透Devanathan-Stachurski细胞;扩散;有限元法(FEM);晶界;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号