@ARTICLE{Izairi_N._Microhardness_2018,
 author={Izairi, N. and Ajredini, F. and Vevecka-Pfiftaj, A. and Makreski, P. and Ristova, M.M.},
 volume={vol. 63},
 number={No 3},
 journal={Archives of Metallurgy and Materials},
 pages={1101-1108},
 howpublished={online},
 year={2018},
 publisher={Institute of Metallurgy and Materials Science of Polish Academy of Sciences},
 publisher={Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences},
 abstract={Equal-channel angular pressing (ECAP) was used as a technique for severe plastic deformation (SPD) on Al alloy AA3004. This technique produced fully dense materials of refined grain structure to sub-micrometer dimensions and advanced mechanical properties. The ECAP processing of samples was conducted as 1 to 4 passes through the die at room temperature. We present the results of the studied homogeneity evolution with the ECAP treatment. Furthermore, a Scanning Electron Microscope (SEM) was used for examination of the microstructure changes in samples undergone from 1 to 4 passes. The microhardness-HV increased upon each ECAP pass. The resulting micro-hardness evolution was attributed to crystalline microstructure modifications, such as the d-spacing (studied by X-ray Diffraction-XRD) depending on the number of ECAP pressings. The microcrystalline changes (grain refining evaluated from the Scanning Electron Microscopy – SEM images) were found to be related to the HV, following the Hall-Petch equation.},
 type={Artykuły / Articles},
 title={Microhardness Evolution in Relation to the Crystalline Microstructure of Aluminum Alloy AA3004},
 URL={http://journals.pan.pl/Content/107985/AMM-2018-3-05-Izairi.pdf},
 doi={10.24425/123782},
 keywords={Al alloys, AA3004, Equal-channel angular pressing (ECAP), microhardness, SEM, grain size, XRD},
}