Specific response of additively manufactured AlSi9Cu3Fe alloy to precipitation strengthening

0536416 - FZÚ 2021 RIV KR eng J - Článek v odborném periodiku
Roudnická, Michaela - Molnárová, Orsolya - Dvorský, Drahomír - Křivský, L. - Vojtěch, D.
Specific response of additively manufactured AlSi9Cu3Fe alloy to precipitation strengthening.
Metals and Materials International. Roč. 26, č. 8 (2020), s. 1168-1181. ISSN 1598-9623. E-ISSN 2005-4149
Institucionální podpora: RVO:68378271
Klíčová slova: aluminium alloys * AlSi₉Cu₃Fe * additive manufacturing * selective laser melting * heat treatment
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 3.642, rok: 2020
Způsob publikování: Omezený přístup
https://doi.org/10.1007/s12540-019-00504-y

In this paper, we follow our previous research on AlSi9Cu3Fe alloy prepared by one of the additive manufacturing technologies, selective laser melting (SLM). We characterize the precipitation strengthening of this material during conventional T6 heat treatment, and also present the possibility of its precipitation strengthening by annealing at temperatures of 413–453 K without previous solutionizing. We revealed the specific response of the studied material consisting in the simultaneous precipitation of semi-coherent θ′ precipitates and Si platelets. By characterization of hardness, mechanical performance under tensile loading and microstructure, we demonstrate that the AlSi9Cu3Fe alloy is not stable when prepared by SLM and its stability can be induced by additional heat treatment.
Trvalý link: http://hdl.handle.net/11104/0314182