Autor: Cieslar, M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The Evolution of Microstructure and Mechanical Properties of Al-Mn-Fe-Si Alloys During Isothermal Annealing
Autorzy:: Poková, M.
Zimina, M.
Cieslar, M.
Powiązania:: https://bibliotekanauki.pl/articles/1402144.pdf
Data publikacji:: 2015-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 68.37.Lp
68.37.Hk
81.30.Mh
81.40.Ef
61.72.Mm
Opis:: Recrystallization during isothermal annealing is studied in a twin-roll cast Al-Mn-Fe-Si alloy with Zr addition. Al₃Zr precipitates, which are known to improve the recrystallization resistance by exerting the Zener drag on migrating grain boundaries, form during heat treatment at 450°C. Materials with and without Al₃Zr precipitates are subjected to 4 passes of equal channel angular pressing at room temperature and a submicrometric grain size is achieved. In the course of isothermal annealing materials recrystallize at 400°C, 425°C and 450°C. The time required for recrystallization follows an Arrhenius equation. Recrystallization kinetics is similar independently of the presence of Al₃Zr precipitates. Precipitation of α-Al(Mn,Fe)Si particles is thought to increase the recrystallization resistance in the material without Al₃Zr.
Źródło:: Acta Physica Polonica A; 2015, 128, 4; 746-749
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: The Influence of Silicon Content on Recrystallization of Twin-Roll Cast Aluminum Alloys for Heat Exchangers
Autorzy:: Poková, M.
Cieslar, M.
Lacaze, J.
Powiązania:: https://bibliotekanauki.pl/articles/1419112.pdf
Data publikacji:: 2012-09
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 81.40.Ef
68.37.Lp
81.30.Mh
Opis:: Thin foils of aluminum alloys are commonly used in automotive industry for manufacturing heat exchangers. Use of twin-roll casting instead of direct-chill casting requires modifications in the manufacturing process and use of improved materials. In the present study, the evolution in microstructure and mechanical properties during isochronal annealing of two AW3003-based alloys differing in silicon content was monitored. The silicon influenced both the microhardness and precipitation kinetics during annealing, but not the recrystallization temperature. Precipitation of cubic $\alphs-Al_{15}(Mn,Fe)_3Si_2$ phase occurred in two steps in the material with higher Si content, while mainly precipitates of $Al_6(Mn,Fe)$ phase formed in the second material in a broad temperature interval, preferentially at grain boundaries.
Źródło:: Acta Physica Polonica A; 2012, 122, 3; 625-629
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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