The influence of cooling rate on the microstructure of an Al-Mn-Be alloyRozman, Niko (Avtor) Bončina, Tonica (Avtor) Anžel, Ivan (Avtor) Zupanič, Franc (Avtor) aluminiumquasicrystalscooling ratemicrostructureIn ternary Al-Mn-Be alloys a metastable quasicrystalline phase can form at relatively low cooling rates (≈ 100 K/s); however, besides the quasicrystalline phase other phases can also be present. We found that the investigated alloy is very prone to the formation of metastable phases, which are also quasicrystalline. Using different investigation methods we determined the type of phases, their shape, morphology, chemical composition and distribution. Special attention was given to the micro- and nano-sized quasicrystalline particles. When using slow cooling, Al10Mn3 and Be4AlMn were present; however, with a faster cooling rate a quasicrystal approximant and a quasicrystalline phase were formed.20082015-07-10 18:09:43Znanstveno delo52682ISSN: 1580-2949UDK: 620.715:620.18OceCobissID: 106193664COBISS_ID: 675242ISSN pri članku: 1580-2949NUK URN: URN:SI:UM:DK:YFJNSKMGsl