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Hydrogen embrittlement and delayed fracture of advanced multiphase high-strength steels

Objective

Hydrogen embrittlement (HE) of multiphase high-strength steels is investigated. The aim is to gain fundamental understanding of the relation between the strength, microstructure, hydrogen solubility and diffusion and the mechanisms of HE.

Furthermore, the influence of the application environment is studied by carrying out mechanical testing at different loading conditions (strain rate, temperature, deformation path, etc.). In order to study the strain localisation and crack formation mechanisms related to HE, in-situ EBSD analysis will be performed in FESEM during plastic deformation. Based on the results, guidelines to avoid HE will be composed for steel manufacturers and end-users.

Coordinator

ONDERZOEKSCENTRUM VOOR AANWENDING VAN STAAL N.V.
Address
John Kennedylaan 3
9060 Zelzate
Belgium

Participants (5)

HELSINKI UNIVERSITY OF TECHNOLOGY - TEKNILLINEN KORKEAKOULU
Finland
Address
Otakaari 1
02015 Espoo
OUTOKUMPU STAINLESS AB
Sweden
Address

10327 Stockholm
RHEINISCH-WESTFAELISCHE TECHNISCHE HOCHSCHULE AACHEN
THYSSENKRUPP STEEL AG
Germany
Address
Kaiser-wilhelm-strasse 100
47166 Duisburg
VOESTALPINE STAHL GMBH
Austria
Address
Voest-alpine-strasse 3
4020 Linz