Effect of cooling rate on the microstructure of an Al94Mn2Be2Cu2 alloyBončina, Tonica (Avtor) Markoli, Boštjan (Avtor) Zupanič, Franc (Avtor) Al-alloymetallographymicrostructurecooling ratesolidificationIn this study the effect of the cooling rate on the microstructure of Al94 Mn2 Be2 Cu2 alloy was investigated. The vacuum induction melted and cast alloy was exposed to different cooling rates. The slowest cooling rate was achieved by the DSC (10 K·min^−1), the moderate cooling rate succeeded by casting in the copper mould (≈1 000 K·s−1) and the rapid solidification was performed by melt spinning (up to 10^6 K·s^−1). The microstructure of the DSC-sample consisted of α-Al matrix, and several intermetallics: τ1-Al29 Mn6 Cu4 , Al4 Mn, θ-Al2 Cu and Be4 Al(Mn,Cu). The microstructures of the alloy at moderate and rapid cooling consisted of the α-Al matrix, i-phase and θ-Al2 Cu. Particles of i-phase and θ-Al2 Cu were much smaller and more uniformly distributed in melt-spun ribbons.20122017-07-03 13:08:54Znanstveno delo66570ISSN: 1334-2576UDK: 669OceCobissID: 6892802COBISS_ID: 1173343ISSN pri članku: 1334-2576NUK URN: URN:SI:UM:DK:JDFRRZDFsl