20.500.12556/RUL-132742 Studies on structural, mechanical and erosive wear properties of ZA-27 alloy-based micro-nanocomposites Metal matrix nanocomposites represent a relatively new class of material, which is still being extensively investigated. Most of the studies, however, are devoted to aluminium- or magnesium-based nanocomposites. A limited number of studies focus on zinc alloy base nanocomposites, with fewer still concentrating on zinc alloy base micro-nanocomposites. In addition, most of the tribological studies investigate adhesive or abrasive wear resistance, whereas studies of erosive wear resistance lag well behind. It was previously shown that the presence of nanoparticles in ZA-27 alloy-based nanocomposites led to a slight increase in erosive wear resistance. Upon discovering that, the aim became to produce micro-nanocomposites that would retain the positive effect of nanoparticles, while further elevating performance, by combining microparticles with nanoparticles. The ZA-27 alloy-based micro-nanocomposites were reinforced with 3 wt. % Al2O3 microparticles (particle size approx. 36 [micro]m) and with four different amounts (0.3, 0.5, 0.7 and 1 wt. %) of Al2O3 nanoparticles (particle size 20-30 nm). Tested materials were produced by the compocasting process, with mechanical alloying pre-processing. Solid particle erosive wear testing, with particle impact angle of 90°, showed that all micro-nanocomposites had significantly increased wear resistance in comparison to the reference material. ZA-27 alloy micro-nanocomposites compocasting microstructures hardness erosive wear ZA-27 zlitina mikro-nanokompoziti mikrostrukture trdota erozivna obraba true false true Angleški jezik Slovenski jezik Članek v reviji 2021-11-02 09:41:01 2021-11-02 09:41:05 2022-09-12 04:13:30 0000-00-00 00:00:00 2021 0 0 Str. 1509-1518 iss. 7 Vol. 235 Jul. 2021 0000-00-00 PostprintKoncna Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 620.193.95+539.53:669-1 1464-4207 10.1177/1464420721994870 83027459 RAZ_Vencl_Aleksandar_2021.pdf RAZ_Vencl_Aleksandar_2021.pdf 1 36F5A196FD80D4114A11F3525DB58B13 e196574048d164efb94a9764efcabb6da2f3026239d56acd3cd07e319a44cce0 5972405d-3bbb-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=150423 https://journals.sagepub.com/doi/10.1177/1464420721994870 Plačljiv dostop do polnega članka 1 939ad4b3-3bb8-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=150418 Fakulteta za strojništvo 0 0 0