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@PHDTHESIS{Jauer:753829,
author = {Jauer, Lucas},
othercontributors = {Poprawe, Reinhart and Gebhardt, Andreas},
title = {{L}aser {P}owder {B}ed {F}usion von {M}agnesiumlegierungen;
1. {A}uflage},
school = {RWTH Aachen University},
type = {Dissertation},
address = {Aachen},
publisher = {Apprimus Verlag},
reportid = {RWTH-2019-00868},
isbn = {978-3-86359-682-8},
series = {Ergebnisse aus der Lasertechnik},
pages = {1 Online-Ressource (II, 165 Seiten) : Illustrationen,
Diagramme},
year = {2018},
note = {Druckausgabe: 2018. - Auch veröffentlicht auf dem
Publikationsserver der RWTH Aachen University 2019;
Dissertation, RWTH Aachen University, 2018},
abstract = {The additive manufacturing process laser powder bed fusion
(LPBF) is increasingly used in industrial series production.
Compared to other production technologies, LPBF lacks the
range of commercially available materials. Magnesium alloys
represent one of these unavailable alloys. Nevertheless,
lightweight construction and medical applications would
strongly benefit from magnesium alloys being used with LPBF,
as magnesium alloys are the lightest structural metals and
feature both biocompatibility and biodegradability. However,
magnesium alloys are difficult to process with LPBF,
particularly because of the high vapor pressure at melting
temperature, since the interaction of laser radiation and
metal vapor can significantly reduce part quality. Within
the scope of this work, two suitable strategies for
processing magnesium alloys with LPBF are developed. After
selecting a suitable powder material, LPBF specimens made of
the alloys AZ91 and WE43are analyzed with regard to
microstructure and mechanical properties under static load.
For both alloys LPBF specimens exhibit a fine microstructure
with mostly equiaxed grains in the size of 1-3 μm. For both
tensile and compressive loads, strength and ductility are
significantly larger than for typical cast components. At
the end of this thesis, various technology demonstrators are
built to demonstrate the application-related feasibility of
LPBF with magnesium alloys.},
cin = {418710 / 053100},
ddc = {620},
cid = {$I:(DE-82)418710_20140620$ / $I:(DE-82)053100_20140620$},
typ = {PUB:(DE-HGF)11 / PUB:(DE-HGF)3},
doi = {10.18154/RWTH-2019-00868},
url = {https://publications.rwth-aachen.de/record/753829},
}