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Load partition during hot deformation of AlSi12 and AlSi10Cu6Ni2 alloys: a quantitative evaluation of the stiffness of Si networks
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SYSNO ASEP 0531353 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Load partition during hot deformation of AlSi12 and AlSi10Cu6Ni2 alloys: a quantitative evaluation of the stiffness of Si networks Author(s) Canelo-Yubero, David (UJF-V) ORCID, SAI
Etzlstorfer, C. (AT)
Koos, R. (DE)
Germann, H. (DE)
Steffens, T. (DE)
Stark, A. (DE)
Boller, E. (FR)
Requena, G. (DE)Number of authors 8 Source Title Journal of Materials Science. - : Springer - ISSN 0022-2461
Roč. 55, č. 29 (2020), s. 14558-14570Number of pages 13 s. Publication form Print - P Language eng - English Country US - United States Keywords AlSi12 ; AlSi10Cu6Ni2 ; alloys Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) Method of publishing Limited access Institutional support UJF-V - RVO:61389005 UT WOS 000546882000001 EID SCOPUS 85087719016 DOI 10.1007/s10853-020-05023-5 Annotation An eutectic AlSi12 alloy contains a rigid 3D network formed by the eutectic Si in the as-cast condition, which disintegrates during solution treatment. Synchrotron tomography proved that a near eutectic AlSi10Cu6Ni2 alloy also exhibits a 3D network with higher and more stable stiffness due to the presence of aluminides that retain the initial as-cast microstructure during the solubilization treatment and increase the volume fraction of rigid phases. In order to evaluate the load borne by different phases during hot deformation, in situ synchrotron experiments were carried out revealing an underestimation of the load transfer from the soft alpha-Al matrix to the hard silicon 3D network in the AlSi12 alloy. By taking into account the additional stiffness introduced by the local interconnectivity, the stresses in different phases in the near eutectic AlSi10Cu6Ni2 alloy were calculated. Additionally, the analysis of the aluminide Al2Cu allowed to identify its influence in the global damage of the hybrid 3D network formed by the Si and aluminides in the near eutectic AlSi10Cu6Ni2 alloy. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2021 Electronic address https://doi.org/10.1007/s10853-020-05023-5
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