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@ARTICLE{Wesselmecking:861642,
author = {Wesselmecking, Sebastian and Song, Wenwen and Ma, Yan and
Roesler, Thorsten and Hofmann, Harald and Bleck, Wolfgang},
title = {{S}train {A}ging {B}ehavior of an {A}ustenitic {H}igh-{M}n
{S}teel},
journal = {Steel research international},
volume = {89},
number = {9},
issn = {1611-3683},
address = {Weinheim},
publisher = {Wiley-VCH-Verl.},
reportid = {FZJ-2019-02088},
pages = {1700515 -},
year = {2018},
abstract = {The bake hardening treatment shows great potential for
increasing the yield strength of steel components for
automotive applications. This study investigates the effects
of bake hardening on the yield strength and ductility of an
austenitic high‐Mn steel. In order to identify a promising
process window, the prestrain, the bake hardening
temperature, and the annealing time are varied. The bake
hardening effect is evaluated by the uniaxial tensile tests
with digital image correlation (DIC) in situ monitoring. The
results show strong bake hardening effect on the high‐Mn
steel when certain amount of prestrain is applied. Large
amounts of prestrain even leads to room temperature aging.
Small angle neutron scattering (SANS) measurements indicate
the absence of Mn–C short range ordering (SRO) after the
prestrain; however, the nano‐sized Mn–C SRO re‐occurs
after the annealing. At high prestrain degree, an increase
in the number density of the Mn–C SRO is found in both
cases, after annealing at elevated temperature and aging at
room temperature, indicating an accelerated Mn–C SRO
formation. The results suggest that SRO is responsible for
an increase in the yield strength and a pronounced yielding
of the high‐Mn steel after bake hardening treatment.},
cin = {JCNS-FRM-II / Neutronenstreuung ; JCNS-1},
ddc = {660},
cid = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
I:(DE-Juel1)JCNS-1-20110106},
pnm = {6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)
/ 6G15 - FRM II / MLZ (POF3-6G15)},
pid = {G:(DE-HGF)POF3-6G4 / G:(DE-HGF)POF3-6G15},
experiment = {EXP:(DE-MLZ)KWS2-20140101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000443590100008},
doi = {10.1002/srin.201700515},
url = {https://juser.fz-juelich.de/record/861642},
}