- Tytuł:
- Microhardness Evolution in Relation to the Crystalline Microstructure of Aluminum Alloy AA3004
- Autorzy:
-
Izairi, N.
Ajredini, F.
Vevecka-Pfiftaj, A.
Makreski, P.
Ristova, M. M. - Powiązania:
- https://bibliotekanauki.pl/articles/353733.pdf
- Data publikacji:
- 2018
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
Al alloy
AA3004
equal-channel angular pressing
ECAP
microhardness
SEM
grain size
XRD - Opis:
- 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.
- Źródło:
-
Archives of Metallurgy and Materials; 2018, 63, 3; 1101-1108
1733-3490 - Pojawia się w:
- Archives of Metallurgy and Materials
- Dostawca treści:
- Biblioteka Nauki
Artykuł