TY  - JOUR
AU  - Lopez Barrilao, Jennifer
AU  - Kuhn, Bernd
AU  - Wessel, Egbert
TI  - Microstructure evolution and dislocation behaviour in high chromium, fully ferritic steels strengthened by intermetallic laves phases
JO  - Micron
VL  - 108
SN  - 0968-4328
CY  - New York, NY [u.a.]
PB  - Elsevier
M1  - FZJ-2018-02283
SP  - 11 - 18
PY  - 2018
AB  - In the present study a stainless, high strength, ferritic (non-martensitic) steel was analysed regarding microstructure and particle evolution. The preceding hot-rolling process of the steel results in the formation of sub-grain structures, which disappear over time at high temperature. Besides that the formation of particle-free zones was observed. The pronounced formation of these zones preferentially appears close to high angle grain boundaries and is considered to be responsible for long-term material failure under creep conditions. The reasons for this are lacking particle hardening and thus a concentration and accumulation of deformation in the particle free areas close to the grain boundaries. Accordingly in-depth investigations were performed by electron microscopy to analyse dislocation behaviour and its possible effect on the mechanical response of these weak areas.
LB  - PUB:(DE-HGF)16
C6  - pmid:29544163
UR  - <Go to ISI:>//WOS:000430901000003
DO  - DOI:10.1016/j.micron.2018.02.008
UR  - https://juser.fz-juelich.de/record/844944
ER  -