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‘The Turcks, Negros, and Tartars’. An Exhibition and Conference on Islam in Brandenburg and Prussia, Following the 600th Anniversary of German-Tartar Relations

Historie. Jahrbuch des Zentrums für Historische Forschung Berlin der Polnischen Akademie der Wissenschaften | 2019 | Folge 12 : Krieg und Frieden | 169-172

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Abstract

In 2014, an exhibition devoted to Islam in Brandenburg and Prussia was held at the Brandenburg-Preußen Museum in Wustrau, in the vicinity of Berlin. The exhibition was accompanied by a series of lectures, presentations, and workshops. Since 2017, the exhibition has been presented outside Germany, including in Kazan, the capital city of the Republic of Tatarstan, Russian Federation, where it arouses considerable interest. Among the many interesting objects, personal belongings of Tatar POWs who were caught by the Germans during the First World War have proved particularly attractive. A scientific conference on the traces of Tatars in Germany, covering archival resources and collective memory issues, has been another accompanying event.

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Authors and Affiliations

Mieste Hotopp-Riecke

Stephan Theilig

Microstructure and Properties of Experimental Mg-9Al-5RE-1Zn-Mn Magnesium Alloy

Katarzyna Braszczyńska-Malik

Archives of Foundry Engineering | 2023 | vol. 23 | No 4 | 169-172 | DOI: 10.24425/afe.2023.148960

Keywords Mg-Al-RE-type magnesium alloy Microstructure Mechanical properties

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Abstract

In this paper, an experimental Mg-Al-RE-type magnesium alloy, named AEZ951, is presented. The chemical composition of the investigated alloy was ca. 9 wt% Al, 5 wt% RE (rare earth elements), 0.7 wt% Zn and 3 wt% Mn. The experimental material was gravity cast into a cold steel mould. Microstructure analyses were carried out by light microscopy, along with X-ray phase analysis and scanning electron microscopy with an energy-dispersive X-ray spectrometer (SEM + EDX). Detailed investigations disclosed the presence of primary dendrites of an α(Mg) solid solution and Al11RE3, ɣ and Al10RE2Mn7 intermetallic compounds in the alloy microstructure. The volume fraction of the Al11RE3 phase and α+ɣ eutectic was also presented. The hardness, impact strength, tensile strength as well as the yield strength of the alloy were examined in tests at room temperature. The examined experimental Mg-Al-RE-type magnesium alloy exhibited higher mechanical properties than the commercial AZ91 alloy (cast in the same conditions).

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Bibliography

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