- Tytuł:
- Grain refinement, microhardness distribution, strain hardening behaviour and mechanical proprieties of RD-ECAPed AA 1050
- Autorzy:
-
Halimi, A.
Hemmouche, L.
Chettah, I. E.
Louchene, Z. A. - Powiązania:
- https://bibliotekanauki.pl/articles/38697115.pdf
- Data publikacji:
- 2023
- Wydawca:
- Instytut Podstawowych Problemów Techniki PAN
- Tematy:
-
aluminium alloys
Rotary Die Equal Channel Angular Pressing
microstructure
longitudinal microhardness
compression test - Opis:
- This study aims to investigate the evolution of mechanical and microstructural characteristics of the 1050 aluminium alloy processed by Rotary Die Equal Channel Angular Pressing (RD-ECAP). The RD-ECAPed specimens were analysed after each pass using optical microscopy, quasi-static compression test and microhardness measurements. The results revealed a reduction in grain size from 29 _m before the RD-ECAP process to a minimum value of 2 _m at the second pass, corresponding to the maximum value of compressive yield strength, reaching 184MPa. Furthermore, there was an increase in hardness from 30 Hv to 63 Hv with a homogeneous distribution along the longitudinal surface, especially in the initial four RD-ECAP passes. Additionally, the appearance of a 45_ shear plane was observed at the last fifth pass, coinciding with the region of maximum microhardness.
- Źródło:
-
Archives of Mechanics; 2023, 75, 6; 647-672
0373-2029 - Pojawia się w:
- Archives of Mechanics
- Dostawca treści:
- Biblioteka Nauki
Artykuł