Serrated yielding and the localized shear failure mode in aluminium alloys

J.E. King*, C.P. You, J.F. Knott

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    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 languageEnglish
    Pages (from-to)1553-1566
    Number of pages14
    JournalActa Metallurgica
    Volume29
    Issue number9
    DOIs
    Publication statusPublished - Sep 1981

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