20.500.12556/RUL-160372 The impact of small Zr addition to Al–Ni cast alloy for elevated temperature applications Most aluminium casting alloys are based on the eutectic system Al–Si, which has weak thermal properties. Alloys from the eutectic Al–Ni system on the other hand have higher thermal stability and good casting properties and are therefore promising for casting applications. Using casting simulations, a copper mold was designed to achieve cooling rates above 100 K/s with the aim of producing a Zr-rich supersaturated solid solution. Microstructural analysis revealed that the addition of Zr leads to notable changes in the microstructure characterised by the formation of primary Al3Zr and αAl dendrites. Subsequent heat treatment revealed that Zr-enriched alloys undergo significant age hardening, which showed an improvement in microhardness due to effective Al3Zr precipitation. aluminium alloys ulivanje evtektik aluminij-nikelj cirkonij mikrotrdota aluminijeve zlitine casting aluminium-nickel eutectic zirconium microhardness true false true Angleški jezik Slovenski jezik Članek v reviji 2024-08-27 09:43:33 2024-08-27 09:43:36 2025-03-27 12:58:14 0000-00-00 00:00:00 2024 0 0 Str. 1928-1936 Vol. 32 Sep./Oct. 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 620.1 2238-7854 10.1016/j.jmrt.2024.08.029 205386755 Smalc_..._-_The_impact_of_small_Zr_addition_to_Al–Ni_cast_alloy_for_elevated_temperature_applications.pdf Smalc_..._-_The_impact_of_small_Zr_addition_to_Al–Ni_cast_alloy_for_elevated_temperature_applications.pdf 1 97F7C5136A4FB17835A421D1EF654E75 1d6ed7d6bdfdc9deeece45c9f85dab38b567400049c2e52725a2db66bcb2b9c8 062dd02f-6448-11ef-8f74-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=189016 https://www.sciencedirect.com/science/article/pii/S2238785424018192 1 d81c8c01-6447-11ef-8f74-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=189015 Fakulteta za strojništvo Naravoslovnotehniška fakulteta 0 0 0