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| 001 | 201771 | ||
| 005 | 20240610120453.0 | ||
| 024 | 7 | _ | |a 10.1007/s10853-014-8371-4 |2 doi |
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| 024 | 7 | _ | |a 1573-4803 |2 ISSN |
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| 037 | _ | _ | |a FZJ-2015-04065 |
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| 100 | 1 | _ | |a Ehlers, F. J. H. |0 P:(DE-HGF)0 |b 0 |e Corresponding Author |
| 245 | _ | _ | |a Phase stabilization principle and precipitate-host lattice influences for Al–Mg–Si–Cu alloy precipitates |
| 260 | _ | _ | |a Dordrecht [u.a.] |c 2014 |b Springer Science + Business Media B.V |
| 336 | 7 | _ | |a Journal Article |b journal |m journal |0 PUB:(DE-HGF)16 |s 1435560277_10712 |2 PUB:(DE-HGF) |
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| 520 | _ | _ | |a In this work, we seek to elucidate a common stabilization principle for the metastable and equilibrium phases of the Al–Mg–Si–Cu alloy system, through combined experimental and theoretical studies. We examine the structurally known well-ordered Al–Mg–Si–Cu alloy metastable precipitates along with experimentally observed disordered phases, using high angle annular dark field scanning transmission electron microscopy. A small set of local geometries is found to fully explain all structures. Density functional theory based calculations have been carried out on a larger set of structures, all fully constructed by the same local geometries. The results reveal that experimentally reported and hypothetical Cu-free phases from the set are practically indistinguishable with regard to formation enthalpy and composition. This strongly supports a connection of the geometries with a bulk phase stabilization principle. We relate our findings to the Si network substructure commonly observed in all Mg–Al–Si(–Cu) metastable precipitates, showing how this structure can be regarded as a direct consequence of the local geometries. Further, our proposed phase stabilization principle clearly rests on the importance of metal-Si interactions. Close links to the Al–Mg–Si precipitation sequence are proposed. |
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| 700 | 1 | _ | |a Wenner, S. |0 P:(DE-HGF)0 |b 1 |
| 700 | 1 | _ | |a Andersen, S. J. |0 P:(DE-HGF)0 |b 2 |
| 700 | 1 | _ | |a Marioara, C. D. |0 P:(DE-HGF)0 |b 3 |
| 700 | 1 | _ | |a Lefebvre, W. |0 P:(DE-HGF)0 |b 4 |
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| 700 | 1 | _ | |a Holmestad, R. |0 P:(DE-HGF)0 |b 6 |e Corresponding Author |
| 773 | _ | _ | |a 10.1007/s10853-014-8371-4 |g Vol. 49, no. 18, p. 6413 - 6426 |0 PERI:(DE-600)2015305-3 |n 18 |p 6413 - 6426 |t Journal of materials science |v 49 |y 2014 |x 1573-4803 |
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