Haubrich, Jan und Artzt, Katia Juliane und Barriobero Vila, Pere und Gussone, Joachim und Kasperovich, Galina und Kürnsteiner, Philipp und Jägle, Eric A. und Requena, Guillermo (2018) Exploiting Metastability and Lattice Defects for Microstructural Engineering of SLM Ti-6Al-4V. Advanced additive Manufacturing Symposium AAMS18, 2018-09-03, Sheffield, GB.
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Kurzfassung
Additive manufacturing (AM) is a technology of enormous potential, yet also of enormous complexity. Unlike “conventional” manufacturing approaches, understanding and exploiting AM requires very interdisciplinary research efforts since material, processing, AM-conformal design & engineering, build strategies, post-treatments and surface finishing are all interdependent. Particularly for load-bearing “class-one” components in space applications, achieving high material quality and performance in a robust AM process such as Selective Laser Melting (SLM) is a major hurdle. The development of different SLM bulk processing and post-heat-treatment strategies for Ti-6Al-4V including intensified intrinsic heat treatment and in situ high-temperature build space heating to obtain stabilized microstructures with fine -particles and films will be presented. Heat treatments act to stabilize the initial as-built microstructures by decomposition of the acicular martensite in conjunction with pronounced element partitioning. New-phase nucleates at prior lattice defects in the as-built microstructures, leading to favorable materials properties. The bulk parameter studies link to development manufacturing strategies, for which further aspects such as parameter-dependence of residual stress (AAMS contribution of T. Mishurova), SLM contour- and downskin processing, and build/support strategies have been studied (AAMS contribution of K. Artzt).
elib-URL des Eintrags: | https://elib.dlr.de/122502/ | ||||||||||||||||||
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Dokumentart: | Konferenzbeitrag (Poster) | ||||||||||||||||||
Titel: | Exploiting Metastability and Lattice Defects for Microstructural Engineering of SLM Ti-6Al-4V | ||||||||||||||||||
Autoren: |
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Datum: | 3 September 2018 | ||||||||||||||||||
Open Access: | Nein | ||||||||||||||||||
In SCOPUS: | Nein | ||||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||||
Stichwörter: | Additive Manufacturing; 3D-Printing | ||||||||||||||||||
Veranstaltungstitel: | Advanced additive Manufacturing Symposium AAMS18 | ||||||||||||||||||
Veranstaltungsort: | Sheffield, GB | ||||||||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||||||||
Veranstaltungsdatum: | 3 September 2018 | ||||||||||||||||||
DLR - Schwerpunkt: | Raumfahrt | ||||||||||||||||||
DLR - Forschungsgebiet: | R SY - Technik für Raumfahrtsysteme | ||||||||||||||||||
Standort: | Köln-Porz | ||||||||||||||||||
Institute & Einrichtungen: | Institut für Werkstoff-Forschung Institut für Werkstoff-Forschung > Metallische Strukturen und hybride Werkstoffsysteme |
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