- Tytuł:
-
High Temperature Deformation Flow Of A ZK60A Magnesium Alloy After Extrusion
Płynięcie stopu magnezu ZK60A podczas wysokotemperaturowego odkształcenia w trakcie wytłaczania - Autorzy:
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Kawasaki, M.
Lee, H. J.
Oh, M. C.
Ahn, B. - Powiązania:
- https://bibliotekanauki.pl/articles/354374.pdf
- Data publikacji:
- 2015
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
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activation energy
extrusion
flow mechanics
magnesium alloy
tensile property
energia aktywacji
wytłaczanie
mechanika przepływu
stop magnezu
rozciąganie - Opis:
- Flow behavior of a ZK60A magnesium alloy after continuous casting and subsequent extrusion was examined in tension at a range of strain rates of 3.0×10-6 − 1.0×10-2 s-1 at temperatures of 473-623K. The results demonstrated that the alloy exhibited a maximum elongation of ~250% at 523K when tested at an initial strain rate of 1.0×10-5 s-1 and strain rate sensitivity, m, of ~0.3-0.4 and the activation energy of ~94 kJ/mol were calculated under the testing conditions. The detailed investigation suggested that the high temperature flow of the ZK60A alloy having submicrometer grains demonstrates quasi-superplastic flow behavior controlled by a dislocation viscous glide process.
- Źródło:
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Archives of Metallurgy and Materials; 2015, 60, 2B; 1327-1330
1733-3490 - Pojawia się w:
- Archives of Metallurgy and Materials
- Dostawca treści:
- Biblioteka Nauki