In situ TEM study of precipitation in a quasicrystal-strengthened Al-alloyBončina, Tonica (Avtor) Zupanič, Franc (Avtor) Al-alloyquasicrystalPrecipitation kinetics and mechanisms within an Al-Mn-Be-Cu quasicrystal strengthened alloy at 300°C were studied using in-situ transmission electron microscopy. The alloy was cast into a copper mould. Quasicrystalline precipitates formed throughout the Al-rich solid solution, whilst heterogeneous formations of Al2Cu and T-phase occurred on icosahedral quasicrystalline particles formed during solidification. The formation of quasicrystalline particles and T-phase was limited by manganese diffusivity, whilst that of Al2Cu by copper diffusivity. The precipitation produced only a small hardening effect.20172017-05-09 15:10:42Znanstveno delo65600ISSN: 1733-3490UDK: 699.2/.8OceCobissID: 368554COBISS_ID: 20321046DOI: 10.1515/amm-2017-0001ISSN pri članku: 1733-3490NUK URN: URN:SI:UM:DK:RUKOYKPNsl