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231226s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202303650
|2 doi
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|a pubmed24n1386.xml
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|a eng
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|a Xu, Wei
|e verfasserin
|4 aut
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|a Stabilizing Supersaturation with Extreme Grain Refinement in Spinodal Aluminum Alloys
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|c 2024
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|a Text
|b txt
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 25.04.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2023 Wiley‐VCH GmbH.
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|a Supersaturated solid solutions can be formed in alloys from various non-equilibrium processes, but stabilizing the metastable phases against decomposition is challenging, particularly the spinodal decomposition that occurs via chemical fluctuations without energy barriers to nucleation. In this work, it is found that spinodal decomposition in supersaturated Al(Zn) solid solutions can be inhibited with straining-induced extreme grain refinement. For the refined supersaturated grains at the nanoscale, their spinodal decomposition is obviously resisted by the relaxed grain boundaries and reduced lattice defects. As grains are refined below 10 nm the decomposition is completely inhibited, in which atomic diffusion is blocked by the stable Schwarz crystal structure with vacancy-free grains. Extreme grain refinement offers a general approach to stabilize supersaturated phases with broadened compositional windows for property modulation of alloys
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|a Journal Article
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|a Schwarz crystal structure
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|a aluminum alloys
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|a grain boundary relaxation
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|a grain refinement
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|a spinodal decomposition
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|a Zhong, Yiming
|e verfasserin
|4 aut
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|a Li, Xiuyan
|e verfasserin
|4 aut
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|a Lu, K
|e verfasserin
|4 aut
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 36(2024), 17 vom: 01. Apr., Seite e2303650
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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|g volume:36
|g year:2024
|g number:17
|g day:01
|g month:04
|g pages:e2303650
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|u http://dx.doi.org/10.1002/adma.202303650
|3 Volltext
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