Beryllium – A challenge for preparation and mechanical characterization

Titel in Übersetzung: Beryllium – eine Herausforderung für Präparation und mechanische Charakterisierung

Maximilian Siller, Johann Kappacher, R. Rolli, Helmut Clemens, Verena Maier-Kiener

Publikation: Beitrag in FachzeitschriftArtikelForschungBegutachtung

Abstract

Beryllium has an extraordinary combination of material properties such as low density, high melting point, high specific heat capacity, high Young's modulus, high hardness and low atomic number. The conventional investigation of the mechanical properties of Be and Be alloys is only possible under difficult conditions due to the material's toxicity and the resulting restrictions on sample manufacturing. These limitations are avoided, at least partly, when using a depthsensing hardness test, also called nanoindentation, where the resulting contamination with Be dusts is limited to a controllable extent. For this work, technically pure Be from Xray exit windows of highperformance Xray tubes was chosen and its mechanical properties were characterized by means of nanoindentation. This contribution will focus in detail on the preparation of the material as well as the following microstructural characterization by means of light microscopy and scanning electron microscopy. The mechanical results of local nanoindentation will be correlated with the microstructure and compared with known values found in the literature.

Titel in ÜbersetzungBeryllium – eine Herausforderung für Präparation und mechanische Charakterisierung
OriginalspracheEnglisch
Seiten (von - bis)624-633
Seitenumfang10
FachzeitschriftPractical metallography = Praktische Metallographie
Jahrgang56.2019
Ausgabenummer10
DOIs
PublikationsstatusVeröffentlicht - 2019

Bibliographische Notiz

Funding Information:
We wish to thank Dipl.Ing. Rolf Rolli and the assistants at the IAMWBM of the Materials Testing Group at the Karlsruhe Institute of Technology for the metallographic preparation of the material. Moreover, we would like to thank the Austrian Federal Government (837900) for their financial support within the COMET funding programme (MPPE).
Publisher Copyright:
© Carl Hanser Verlag GmbH & Co KG

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