Search
Now showing items 671-680 of 740
Aufsatz
![Open Access](/themes/Mirage2/images/Open_Access_logo_PLoS_transparent.svg)
On the Impact of Texture and Grain Size on the Pseudoelastic Properties of Polycrystalline Fe–Ni–Co–Al–Ti Alloy
(2020-05-08)
The effects of thermomechanical treatments on crystallographic texture and grain size evolution and their impact on the pseudoelastic properties in Fe41–Ni28–Co17–Al11.5–Ti2.5 (at.%) were studied in the present paper. The results show that cold rolling leads to brass-type texture in this alloy, which is typical for low stacking fault energy materials. Thermal treatments up to 1300 °C were conducted and it is shown that the presence of β-phase helps to control grain growth. After the dissolution of the secondary phase ...
Aufsatz
![Open Access](/themes/Mirage2/images/Open_Access_logo_PLoS_transparent.svg)
Mittelalter erschließen
(2021-07-15)
Research communication has been gaining public attention in recent years. Therefore, medievalists also need to focus on the transfer of their research topics to the public both within and outside the university. Based on current political demands calling for a change in communication culture, the article first of all deals theoretically with two different concepts of research communication, by distinguishing between forms of translation and those of popularization. Numerous public events, exhibitions, and cooperative ...
Rezension
[Rezension zu:] Katrin Kogman-Appel, Catalan Maps and Jewish Books. The Intellectual Profile of Elisha ben Abraham Cresques (1325-1387) (Terrarum Orbis, Vol. 15), Turnhout, Brepols 2020. 358 S., 108 Abb., € 125,-.
(2022-02-01)
Rezension von Ingrid Baumgärtner zu: Katrin Kogman-Appel, Catalan Maps and Jewish Books. The Intellectual Profile of Elisha ben Abraham Cresques (1325-1387) (Terrarum Orbis, Vol. 15), Turnhout, Brepols 2020. 358 S., 108 Abb., € 125,-.
Video
JOHN F. C. TURNER EN PERÚ
(2022-12-16)
La conferencia, basada en la colaboración con Turner y una labor de reactivación de memoria urbana en barriadas turnerianas, presenta aspectos de su legado poco conocidos y dignos de servir de base para nuevas lecturas del urbanismo peruano y en particular de los barrios autoconstruidos de Lima. Invita a explorar la visión holística de Turner con miras a lo que puede aportar para imaginar el desarrollo colectivamente gestionado y sostenible de una multitud de barrios que hoy se expanden en zonas naturales y sobre ...
Aufsatz
![Open Access](/themes/Mirage2/images/Open_Access_logo_PLoS_transparent.svg)
A Novel Approach to Robustly Determine Residual Stress in Additively Manufactured Microstructures Using Synchrotron Radiation
(2021-07-29)
In recent decades additive manufacturing (AM) for years has been in focus of academia and industry as its underlying production principle allows for the realization of designs of unprecedented geometrical complexity. However, often such structures are not realized due to the lack of understanding of structural and mechanical properties, this fact amongst others related to the unique microstructures established by the related processes. In this context, residual stresses, highly affected by the scan strategy and process ...
Aufsatz
![Open Access](/themes/Mirage2/images/Open_Access_logo_PLoS_transparent.svg)
Effect of Crystallographic Orientation and Grain Boundaries on Martensitic Transformation and Superelastic Response of Oligocrystalline Fe–Mn–Al–Ni Shape Memory Alloys
(2021-07-26)
In situ tensile tests employing digital image correlation were conducted to study the martensitic transformation of oligocrystalline Fe–Mn–Al–Ni shape memory alloys in depth. The influence of different grain orientations, i.e., near-〈001〉 and near-〈101〉, as well as the influence of different grain boundary misorientations are in focus of the present work. The results reveal that the reversibility of the martensite strongly depends on the type of martensitic evolving, i.e., twinned or detwinned. Furthermore, it is ...
Aufsatz
![Open Access](/themes/Mirage2/images/Open_Access_logo_PLoS_transparent.svg)
Liquid Silicone Rubber Foams Made with Water as Blowing Agent
(2021-08-18)
Liquid silicone rubber (LSR) is primarily used in injection molding. Foamed molded parts made of LSR are almost nonexistent because the process reliability of LSR foam injection molding is currently not given. It makes sense to have suitable foaming processes for this material as well, because the density of this elastomer is about 1.15 g cm−3. With the injection molding process presented herein for foaming LSR, density reductions of up to 40% can be achieved. In this process, up to 3% by weight of water is added to ...
Teil eines Buches
Dynamiken in der Kartographie um 1500
(De Gruyter, 2021)
Auf der Suche nach dem ‚richtigen‘ kartographischen Wissen prallten im 15. Jahrhundert recht gegensätzliche Vorstellungen aufeinander: Die praktischen Erfahrungen von Seeleuten standen gegen die Anschauungen der gelehrten Kosmographen, die neuen Entdeckungen des Christoph Kolumbus gegen die alten Vermessungen des Claudius Ptolemäus, mündlich vorgetragene Erklärungen gegen schriftlich tradierte Einsichten, die Erweiterungen des geographischen Weltbilds gegen allgemein bekannte Traditionen, lokale Verfahrensweisen gegen ...
Rezension
[Rezension zu:] Alfred Hiatt (Ed.), Cartography between Christian Europe and the Arabic-Islamic World, 1100–1500. Divergent Traditions. (Maps, Spaces, Cultures, Vol. 3.) Leiden, Brill 2021. 238 S., Abb., € 100,58.
(2022-12-01)
Rezension von Ingrid Baumgärtner zu: Alfred Hiatt, Cartography between Christian Europe and the Arabic-Islamic World, 1100–1500. Divergent Traditions. Maps, Spaces, Cultures, Vol. 3. 2021 Brill Leiden, 978-90-04-44491-1, € 100,58
Aufsatz
![Open Access](/themes/Mirage2/images/Open_Access_logo_PLoS_transparent.svg)
Microstructural and mechanical properties of AlSi10Mg: Hybrid welding of additively manufactured and cast parts
(2022-12-07)
Welding and joining of hybrid components consisting of additively manufactured (AM) parts and conventionally processed parts offer new opportunities in structural design. In the present study, AlSi10Mg specimens were fabricated using two different manufacturing processes, i.e., laser-based powder-bed fusion of metals (PBF-LB/M) and casting, and welded by means of friction stir welding (FSW). Material strength of dissimilar welded joints was found to be governed by the as-cast material, which is characterized by a ...