20.500.12556/DKUM-67231 Determination of microstructural changes by severely plastically deformed copper-aluminum alloy optical study Our work deals with the problem of producing a complex metal-ceramic composite using the processes of internal oxidation (IO) and severe plastic deformation. For this purpose, Cu-Al alloy with 0.4wt.% of Al was used. IO of sample serves in the first step of the processing as a means for attaining a fine dispersion of nanosized oxide particles in the metal matrix. Production technology continues with repeated application of severe plastic deformation (SPD) of the resulting metal matrix composite to produce the bulk nanoscaled structural material. SPD was carried out with equal channel angular pressing (ECAP), which allowed that the material could be subjected to an intense plastic strain through simple shear. Microstructural characteristics of one phase and multiphase material was studied on internally oxidized Cu with 0.4wt.% of Al sample composed of one phase copper-aluminum solid solution in the core and fine dispersed oxide particles in the same matrix in the mantle region. In this manner AFM, X-ray diffraction and Raman spectroscopy were used. Local structures in plastically deformed samples reflect presence of $Cu$, $CuO$, $Cu_2O$, $Cu_4O_3$ or $Al_2O_3$ structural characteristics, depending on type of sample. metals oxides atomic force microscopy Raman spectroscopy microstructure kovine oksidi mikroskopija na atomsko silo Raman spektroskopija mikrostrukture true false true Angleški jezik Slovenski jezik Znanstveno delo 2017-08-08 11:24:28 2017-08-08 11:27:43 2022-08-01 13:42:35 2019-07-11 16:13:19 2014 0 0 str. 61-68 št. 1 Letn. 50 B 2014 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1450-5339 669 334431 17748758 10.2298/JMMB140121007R 1450-5339 URN:SI:UM:DK:UFITKRL1 Journal_of_Mining_and_Metallurgy,_Section_B_Metallurgy_2014_Romcevic_et_al._Determination_of_microstructural_changes_by_severely_plastic.pdf Journal_of_Mining_and_Metallurgy,_Section_B_Metallurgy_2014_Romcevic_et_al._Determination_of_microstructural_changes_by_severely_plastic.pdf 1 B39796B451A0A9AD77808D171ABE1CC4 524d456fafa48c56b54c26e03f5a88d48de15dc13d409b46a35beb6d246fdbf9 7e0265ce-7c0e-11eb-bb7a-00155d0001ca 20.500.12556/dkum/8c66c35c-90ee-4ac5-942e-71f4c81335fd https://dk.um.si/Dokument.php?lang=slv&id=114990 http://www.doiserbia.nb.rs/Article.aspx?ID=1450-53391400007R 1 https://dk.um.si/Dokument.php?lang=slv&id=114989 Fakulteta za strojništvo 0 0 0