Hydrogen Embrittlement at Cleavage Planes and Grain Boundaries in Bcc Iron—Revisiting the First-Principles Cohesive Zone Model

Hydrogen Embrittlement at Cleavage Planes and Grain Boundaries in Bcc Iron—Revisiting the First-Principles Cohesive Zone Model

Hydrogen embrittlement, which severely affects structural materials such as steel, comprises several mechanisms at the atomic level. One of them is hydrogen enhanced decohesion (HEDE), the phenomenon of H accumulation between cleavage planes, where it reduces the interplanar cohesion. Grain boundari...

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Bibliographic Details
Main Authors: Abril Azócar Guzmán, Jeongwook Jeon, Alexander Hartmaier, Rebecca Janisch
Format: Article
Language:English
Published: MDPI AG 2020-12-01
Series:Materials
Subjects:
density functional theory
hydrogen embrittlement
hydrogen enhanced decohesion
grain boundary segregation
Online Access:https://www.mdpi.com/1996-1944/13/24/5785

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