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  Compositional evolution of long-period stacking ordered structures in magnesium studied by atom probe tomography

Kim, J.-K., Guo, W., Choi, P.-P., & Raabe, D. (2018). Compositional evolution of long-period stacking ordered structures in magnesium studied by atom probe tomography. Scripta Materialia, 156, 55-59. doi:10.1016/j.scriptamat.2018.07.017.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0001-E67A-3 Version Permalink: https://hdl.handle.net/21.11116/0000-0001-E67B-2
Genre: Journal Article

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 Creators:
Kim, Jin-Kyung1, 2, Author           
Guo, Wei1, 3, Author           
Choi, Pyuck-Pa4, 5, Author           
Raabe, Dierk1, Author           
Affiliations:
1Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863381              
2Department of Energy Science, Sungkyunkwan University, Suwon 16419, South Korea, persistent22              
3Material Science Research and Development, Timken World Headquarters, North Canton, OH, USA, persistent22              
4Atom Probe Tomography, Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863384              
5Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea, ou_persistent22              

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Free keywords: Annealing; Atoms; Binary alloys; Probes; Zinc alloys, Atom probe tomography; Building blockes; Chemical compositions; Compositional evolution; Long-period stacking ordered structure; Longperiod stacking ordered structure (LPSO); Mg alloy; Stoichiometric compositions, Magnesium alloys
 Abstract: Mg alloys containing long-period stacking ordered (LPSO) structures are strong and ductile compared to conventional Mg alloys. We study here the compositional evolution of LPSO structures in a Mg97Y2Zn1 (at.) alloy upon annealing at 500 °C using atom probe tomography. In the material annealed for 2.5 h, the Zn/Y ratio of the building blocks in the interdendritic LPSO phase (0.73) is close to the stoichiometric composition of Y8Zn6 L12 clusters while that in plate-type LPSO structures (0.66) slightly deviates from the ideal value. The Y/Zn enrichment in LPSO structures in the α-Mg matrix slightly decreases with increasing annealing time. © 2018 Elsevier Ltd

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Language(s): eng - English
 Dates: 2018-11
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1016/j.scriptamat.2018.07.017
BibTex Citekey: Kim201855
 Degree: -

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Title: Scripta Materialia
Source Genre: Journal
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Publ. Info: Amsterdam : Elsevier B. V.
Pages: - Volume / Issue: 156 Sequence Number: - Start / End Page: 55 - 59 Identifier: ISSN: 1359-6462
CoNE: https://pure.mpg.de/cone/journals/resource/954926243506