RT Journal Article
SR Electronic
A1 Matvija, Miloš
A1 Fujda, Martin
A1 Milkovič, Ondrej
A1 Vojtko, Marek
A1 Glogovský, Miroslav
T1 Phase Analysis of EN AW 6023 Aluminum Alloy after Short Time Aging
JF Manufacturing Technology Journal
YR 2017
VO 17
IS 6
SP 912
OP 916
DO 10.21062/ujep/x.2017/a/1213-2489/MT/17/6/912
UL https://journalmt.com/artkey/mft-201706-0017.php
AB The phase analysis of the EN AW 6023 aluminum alloy after the heat treatment by short time aging was investigated. The good machinability of this heat treatable and lead free Al-Mg-Si wrought alloy is achieved by alloying of tin and bismuth. In experimental procedure, the solution annealing at 550 °C for 1 hour and subsequent water quenching of the analyzed alloy was realized. The short time artificial aging at 190 °C for 1 hour was carried out immediately after quenching. The microstructure analyses, the EDS analyses and the phase analyses using the hard X-ray diffraction by synchrotron radiation in DESY Hamburg were realized. Significant changes of the alloy phase composition were not observed after short time artificial aging applied on quenched and/or naturally aged alloy. Above all, the minority β''(Mg5Si6) phase was identified as a strengthening phase in alloy α(Al) solid solution as the majority alloy phase. In addition, the minority of Sn, Mg2Sn, Bi2Mg3, AlCu2Mn, Al15(Mn,Fe)3Si2 phases were identified in alloy microstructure.