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Endogenous particle stabilization during magnesium integral foam production

  • The production of magnesium integral foam components with a dense shell and a porous core is investigated. High pressure casting methods are used where liquid magnesium mixed with a blowing agent is injected into a permanent steel mould. A compact shell develops due to fast cooling at the walls. Larger cooling times in the core allow the decomposition of the blowing agent and the evolution of a foam structure. The resulting integral foams show a high weight‐specific stiffness combined with high energy absorption capability. For the first time, foam stabilizing without additives is realized. Stabilization is by foaming during solidification with the primary α‐phase particles acting as obstacles slowing down cell wall thinning.

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Metadaten
Author:C Körner, M Hirschmann, Volker Bräutigam, R. F. Singer
DOI:https://doi.org/10.1002/adem.200405147
Parent Title (English):Advanced Engineering Materials
Document Type:Article
Language:English
Year of publication:2004
Release Date:2023/08/11
Volume:6
Issue:6
Pages/Size:6
First Page:385
Last Page:390
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