Initiation of hydrogen induced cracks at secondary phase particles

Aurélie Laureys; Margot Pinson; Lisa Claeys; Tim Deseranno; Tom Depover; Kim Verbeken

doi:10.3221/IGF-ESIS.52.10

Initiation of hydrogen induced cracks at secondary phase particles

Authors

Aurélie Laureys Ghent University, Department of Materials, Textiles and Chemical Engineering, Technologiepark 46, 9052 Zwijnaarde, Belgium https://orcid.org/0000-0001-5552-3376
Margot Pinson Ghent University, Department of Materials, Textiles and Chemical Engineering, Technologiepark 46, 9052 Zwijnaarde, Belgium https://orcid.org/0000-0001-8198-4950
Lisa Claeys Ghent University, Department of Materials, Textiles and Chemical Engineering, Technologiepark 46, 9052 Zwijnaarde, Belgium https://orcid.org/0000-0002-3034-4889
Tim Deseranno Ghent University, Department of Materials, Textiles and Chemical Engineering, Technologiepark 46, 9052 Zwijnaarde, Belgium https://orcid.org/0000-0002-3374-5047
Tom Depover Ghent University, Department of Materials, Textiles and Chemical Engineering, Technologiepark 46, 9052 Zwijnaarde, Belgium https://orcid.org/0000-0002-8856-1122
Kim Verbeken Ghent University, Department of Materials, Textiles and Chemical Engineering, Technologiepark 46, 9052 Zwijnaarde, Belgium https://orcid.org/0000-0002-5190-016X

DOI:

https://doi.org/10.3221/IGF-ESIS.52.10

Keywords:

Blisters, hydrogen induced cracking, particles, secondary phase, scanning electron microscopy

Abstract

The goal of this work is to propose a general mechanism for hydrogen induced crack initiation in steels based on a microstructural study of multiple steel grades. Four types of steels with strongly varying microstructures are studied for this purpose, i.e. ultra low carbon (ULC) steel, TRIP (transformation induced plasticity) steel, Fe-C-Ti generic alloy, and pressure vessel steel. A strong dependency of the initiation of hydrogen induced cracks on the microstructural features in the materials is observed. By use of SEM-EBSD characterization, initiation is found to always occur at the hard secondary phase particles in the materials.

Downloads

Download data is not yet available.

Downloads

Visual Abstract

Published

14-03-2020

Issue

Vol. 14 No. 52 (2020): April 2020

Section

SI: 1st Benelux Network Meeting and Workshop on Damage and Fracture Mechanics

License

Copyright
Authors are allowed to retain both the copyright and the publishing rights of their articles without restrictions.

Open Access Statement

Frattura ed Integrità Strutturale (Fracture and Structural Integrity, F&SI) is an open-access journal which means that all content is freely available without charge to the user or his/her institution. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles in this journal without asking prior permission from the publisher or the author. This is in accordance with the DOAI definition of open access.

F&SI operates under the Creative Commons Licence Attribution 4.0 International (CC-BY 4.0). This allows to copy and redistribute the material in any medium or format, to remix, transform and build upon the material for any purpose, even commercially, but giving appropriate credit and providing a link to the license and indicating if changes were made.

How to Cite

Initiation of hydrogen induced cracks at secondary phase particles. (2020). Frattura Ed Integrità Strutturale, 14(52), 113-127. https://doi.org/10.3221/IGF-ESIS.52.10