Micromechanics of high temperature hydrogen attack

Sabine M. Schlögl, Erik van der Giessen

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Abstract

Hydrogen attack is a material degradation process that occurs at elevated temperatures in hydrogen-rich environments, such as found in petro-chemical installations. Weldments in components such as reactor vessels are particularly susceptible to hydrogen attack. This paper discusses a multi-scale micromechanics modeling approach in which the chemico-mechanical damage processes at sub-micron scale are coupled to the macroscopic behavior through a series of size-scale transitions. A simulation of hydrogen attack in a welded reactor serves as an illustration of the approach.
Original languageEnglish
Title of host publicationEPRINTS-BOOK-TITLE
Place of PublicationMunchen
PublisherUniversity of Groningen, The Zernike Institute for Advanced Materials
Number of pages11
Publication statusPublished - 1999

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