Serrated yielding and the localized shear failure mode in aluminium alloys

J.E. King; C.P. You; J.F. Knott

doi:10.1016/0001-6160(81)90037-7

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

Aston University

University of Cambridge

Research output: Contribution to journal › Article › peer-review

73 Citations (Scopus)

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
Pages (from-to)	1553-1566
Number of pages	14
Journal	Acta Metallurgica
Volume	29
Issue number	9
DOIs	https://doi.org/10.1016/0001-6160(81)90037-7
Publication status	Published - Sept 1981

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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. {\textcopyright} 1981.",

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AU - King, J.E.

AU - You, C.P.

AU - Knott, J.F.

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N2 - 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.

AB - 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.

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JF - Acta Metallurgica

IS - 9

ER -

Serrated yielding and the localized shear failure mode in aluminium alloys

Abstract

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