Abstract
A study has been made of serrated yielding in two commercial Al-Zn-Mg alloys in the as-quenched condition. The different serration types produced in the two alloys and the shear failure mechanism observed in both notched-bend and tensile testing are related to the mechanisms of dynamic strain ageing occurring during the test. An estimate of 19.7 kJ/mole for the activation energy for exchange of a solute atom and a vacancy in Al-6.2 wt% Zn, 2.5 wt% Mg has been made. © 1981.
Original language | English |
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Pages (from-to) | 1553-1566 |
Number of pages | 14 |
Journal | Acta Metallurgica |
Volume | 29 |
Issue number | 9 |
DOIs | |
Publication status | Published - Sept 1981 |