Zobrazeno 1 - 10
of 270
pro vyhledávání: '"Andreas, Stark"'
Autor:
Joachim Gussone, Marcus Willi Rackel, Silvana Tumminello, Pere Barriobero-Vila, Frederic Kreps, Klemens Kelm, Andreas Stark, Norbert Schell, Florian Pyczak, Jan Haubrich, Guillermo Requena
Publikováno v:
Materials & Design, Vol 232, Iss , Pp 112154- (2023)
We compare microstructure formation during laser powder bed fusion (LPBF) of a Ti-22Al-25Nb alloy applying low and high pre-heating build plate temperatures. Fast cooling rates during low-temperature LPBF lead to metastable weakly ordered β phase, i
Externí odkaz:
https://doaj.org/article/d721c2c942cc42e38b4bd51c9e67b460
Autor:
Stefan Heinze, Tim Krülle, Lars Ewenz, Christina Krywka, Anton Davydok, Andreas Stark, Rainer Cremer, Christoph Leyens
Publikováno v:
Materials & Design, Vol 225, Iss , Pp 111535- (2023)
This paper focuses on the influence of the High Power Pulsed Magnetron Sputtering (HPPMS) and Direct Current Magnetron Sputtering (DCMS) coating deposition processes, the bias voltage, deposition temperature, and substrate on various properties of th
Externí odkaz:
https://doaj.org/article/b825d4b21be348f0953e2850ae31a794
Publikováno v:
Materials & Design, Vol 225, Iss , Pp 111462- (2023)
This paper focuses on the Cr2AlC phase formation during annealing post-treatment, with amorphous Cr-Al-C and (Cr,Al)2C as initial phases in the as-deposited state. The influence of the deposition process on the Cr2AlC formation, texture, and phase co
Externí odkaz:
https://doaj.org/article/379d5971596f432c9d1b8ec74fbb05f1
Autor:
Anna-Lena Otte, Phuong Thao Mai, Andreas Stark, Markus Hoelzel, Michael Hofmann, Jens Gibmeier
Publikováno v:
Metals, Vol 13, Iss 3, p 484 (2023)
The aerospace alloy Ti-6246 was subjected to inductive heat treatments with high heating and quenching rates (up to 1500 K/s) while being applied to an in situ diffraction study at the HEMS beamline P07B at DESY. Thereby, the characterization of the
Externí odkaz:
https://doaj.org/article/d0ed3cd322cb4f80b741835cdd6c482b
Publikováno v:
Acta Orthopaedica, Vol 92, Iss 1, Pp 102-108 (2020)
Background and purpose — Classification of ankle fractures is crucial for guiding treatment but advanced classifications such as the AO Foundation/Orthopedic Trauma Association (AO/OTA) are often too complex for human observers to learn and use. We
Externí odkaz:
https://doaj.org/article/b6a49c2925c54bd6973ea961fdc3191c
Autor:
Klaudia Horváth Fekete, Daria Drozdenko, Jan Čapek, Kristián Máthis, Domonkos Tolnai, Andreas Stark, Gerardo Garcés, Patrik Dobroň
Publikováno v:
Journal of Magnesium and Alloys, Vol 8, Iss 1, Pp 199-209 (2020)
The compressive deformation behavior of the extruded WZ42 (Mg98.5Y1Zn0.5 in at.%) magnesium alloy containing a low amount of long-period stacking ordered (LPSO) phase was studied by in-situ synchrotron radiation diffraction technique. Tests were cond
Externí odkaz:
https://doaj.org/article/5bc1d710ddab4d69aed71d6f06ae7683
Autor:
Christian Rowolt, Hannes Fröck, Benjamin Milkereit, Michael Reich, Wolfgang Kowalski, Andreas Stark, Olaf Keßler
Publikováno v:
Science and Technology of Advanced Materials, Vol 21, Iss 1, Pp 205-218 (2020)
The aim of this work is to investigate quench induced precipitation during continuous cooling in aluminium wrought alloys EN AW-7150 and EN AW-6082 using in situ synchrotron wide-angle X-ray scattering (WAXS). While X-ray diffraction is usually an ex
Externí odkaz:
https://doaj.org/article/3b149e82dff24f6fab7abf2e018b2d6b
Autor:
Marc Pollet, Rui Andrade, Ana Gonçalves, Piluca Álvarez Fidalgo, José Luis Camaño Portela, Frédéric Belin, Jonas Mortelmans, Andreas Stark
Publikováno v:
Insects, Vol 13, Iss 11, p 1012 (2022)
Seven species in the genus Medetera (Diptera: Dolichopodidae) are described here: Medetera aglaops sp. nov., Medetera corsicana sp. nov., Medetera gibbosipyga sp. nov., Medetera hispanica sp. nov., Medetera lusitana sp. nov., Medetera parva sp. nov.,
Externí odkaz:
https://doaj.org/article/a3149726c06a48ad925152c34ca3fb55
Autor:
Sophie Mance, Hajo Dieringa, Jan Bohlen, Sarkis Gavras, Andreas Stark, Norbert Schell, João Pereira da Silva, Domonkos Tolnai
Publikováno v:
Crystals, Vol 12, Iss 11, p 1502 (2022)
Lightweight structural materials are increasingly sought after in the automotive and aerospace industries for their potential to improve fuel efficiency. Magnesium-based metal-matrix composites are potential candidates for these kinds of applications
Externí odkaz:
https://doaj.org/article/4e963c53dbe447b5a191925f201437cd
Publikováno v:
Metals, Vol 12, Iss 7, p 1067 (2022)
The dissolution of nano-sized Ni3Al-based γ′ precipitates was investigated in the newly developed polycrystalline nickel-based VDM® Alloy 780 at the surface and in the bulk region with in-situ lab-source and synchrotron X-ray diffraction. These s
Externí odkaz:
https://doaj.org/article/0fef71cd094542dba91baf0c1df87493