STRAIN RATE DEPENDENCE ON MECHANICAL PROPERTIES IN SOME COMMERCIAL ALUMINUM ALLOYS

K. Higashi , T. Mukai , K. Kaizu , S. Tsuchida , S. Tanimura

The flow stress and ductility of some commercial aluminum alloys (1050, 3003, 3004, 5182 and 7N01) have been investigated as a function of strain rates over the range from 1x10-3 to 4x103s-1 at room temperature. The maximum flow stress of both 1050 and 3003 alloys increases with increasing strain rate, but the maximum flow stress of 3004, 5182 and 7N01 alloy decreases with increasing strain rate in the low and intermediate ranges from 1x10-3 to 1x102 s-1. The above three alloys which showed the particular behavior of flow stress in this strain rate range contain magnesium atoms in solute. So, this behavior of flow stress in these alloys seemed to be concerned with the interaction between magnesium atoms in solute and dislocations. The elongation in failure increases with strain rate for most of the present alloys except for the 7N01 alloy.

Domaines: Articles anciens

K. Higashi, T. Mukai, K. Kaizu, S. Tsuchida, S. Tanimura. STRAIN RATE DEPENDENCE ON MECHANICAL PROPERTIES IN SOME COMMERCIAL ALUMINUM ALLOYS. Journal de Physique IV Proceedings, 1991, 01 (C3), pp.C3-341-C3-346. ⟨10.1051/jp4:1991349⟩. ⟨jpa-00250493⟩