Linking Ab Initio Data on Hydrogen and Carbon in Steel to Statistical and Continuum Descriptions

Linking Ab Initio Data on Hydrogen and Carbon in Steel to Statistical and Continuum Descriptions
复制标题

将钢中氢和碳的从头算数据与统计和连续描述联系起来

DOI:
10.3390/met8040219
复制
发表时间:
2018
期刊:
Open Access Journal
影响因子:
--
通讯作者:
R. Spatschek
R. Spatschek
中科院分区:
--
文献类型:
--
作者:
M. Weikamp;C. Hüter;R. Spatschek

文献摘要

参考文献

被引文献

相似文献

我们提出了一个选择的规模转移的方法,从电子的连续制度的主题有关的氢脆。与晶界相关的氢脆的重点,我们讨论的尺度转移的依赖性的碳溶液的行为在钢中的弹性效应和氢溶液在奥氏体体区域取决于Al含量。我们介绍了一个近似的计划,以估计晶界能为不同的碳和氢的人口。我们采用这种方法来讨论铝的抑制影响的碳与氢在晶界上,这是一个假设的晶界氢脆机制的替代。最后,我们讨论了氢化物的形成对晶界刚度的依赖性。
We present a selection of scale transfer approaches from the electronic to the continuum regime for topics relevant to hydrogen embrittlement. With a focus on grain boundary related hydrogen embrittlement, we discuss the scale transfer for the dependence of the carbon solution behavior in steel on elastic effects and the hydrogen solution in austenitic bulk regions depending on Al content. We introduce an approximative scheme to estimate grain boundary energies for varying carbon and hydrogen population. We employ this approach for a discussion of the suppressing influence of Al on the substitution of carbon with hydrogen at grain boundaries, which is an assumed mechanism for grain boundary hydrogen embrittlement. Finally, we discuss the dependence of hydride formation on the grain boundary stiffness.
DOI: 10.1103/physrevb.94.134106
发表时间: 2016
期刊: Physical Review B
影响因子: 3.7
作者:
R. Spatschek;G. Gobbi;C. Hüter;A. Chakrabarty;U. Aydin;S. Brinckmann;J. Neugebauer
通讯作者: J. Neugebauer
DOI: 10.1016/j.msea.2014.06.071
发表时间: 2014-08
影响因子: 6.4
作者:
A. M. Tahir;R. Janisch;A. Hartmaier
通讯作者: A. M. Tahir;R. Janisch;A. Hartmaier