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  Precipitation processes in a Mg–Zn–Sn alloy studied by TEM and SAXS

Rashkova, B., Prantl, W., Görgl, R., Kečkéš, J., Cohen, S. S., Bamberger, M. S., et al. (2008). Precipitation processes in a Mg–Zn–Sn alloy studied by TEM and SAXS. Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing, 494(1-2), 158-165. doi:10.1016/j.msea.2008.04.005.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0024-5697-4 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0024-5698-2
Genre: Journal Article

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 Creators:
Rashkova, Boryana1, 2, Author              
Prantl, Werner3, Author              
Görgl, Richard4, Author              
Kečkéš, Jozef2, Author              
Cohen, Shalom S.5, Author              
Bamberger, Menachem S.5, Author              
Dehm, Gerhard2, 6, Author              
Affiliations:
1Former Dept. Microstructure Interfaces, Max Planck Institute for Intelligent Systems, Max Planck Society, ou_1497657              
2Erich Schmid Institute of Materials Science, Austrian Academy of Sciences, Leoben, Austria, ou_persistent22              
3Erich Schmid Institut für Materialwissenschaft Austrian Academy of Sciences, Department Materialphysik, Montanuniversität Leoben, 8700 Leoben, Austria, ou_persistent22              
4Materials Center Leoben, 8700 Leoben, Austria, ou_persistent22              
5Department of Materials Engineering, Technion, 32000 Haifa, Israel, ou_persistent22              
6Department of Materials Physics, Montanuniversität Leoben, Austria, ou_persistent22              

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 Abstract: The microstructural evolution of a Mg–Zn–Sn alloy was studied by combining X-ray diffraction (XRD), small angleX-ray scattering (SAXS), and transmission electron microscopy (TEM) in order to determine the individual phases, their size and volume fraction of the alloy. Solutionized and aged samples are analysed in detail concerning the nucleation, growth, morphology, and stability of precipitate phases. In the aged samples, firstly MgZn2 particles with a rod-like shape form, and secondly plate-like MgSn2 precipitates. The MgZn2 phase shows awell-defined orientation relationship with the Mg matrix. The formation of two types of precipitates is responsible for the occurrence of two pronounced hardness maxima. The growth behaviour of the MgZn2 phase is determined by combining TEM and SAXS measurements and the results are compared to the Lifschitz–Slyozov–Wagner (LSW) theory.

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Language(s): eng - English
 Dates: 2008-10-25
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1016/j.msea.2008.04.005
 Degree: -

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Title: Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing
  Abbreviation : Mater. Sci. Eng. A: Struct. Mater. Prop. Microstruct. Process.
Source Genre: Journal
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Publ. Info: New York, NY : Elsevier
Pages: - Volume / Issue: 494 (1-2) Sequence Number: - Start / End Page: 158 - 165 Identifier: ISSN: 0921-5093
CoNE: /journals/resource/954928498465_1