Structure and mechanical behaviour of an Al-Mg alloy after equal channel angular extrusion

M. V. Markushev; M. Yu Murashkin; P. B. Prangnell; A. Gholinia; O. A. Maiorova

doi:10.1016/S0965-9773(99)00247-0

Structure and mechanical behaviour of an Al-Mg alloy after equal channel angular extrusion

M. V. Markushev^*, M. Yu Murashkin, P. B. Prangnell, A. Gholinia, O. A. Maiorova

^*Corresponding author for this work

Materials Engineering

Institute for Nuclear Research of the Russian Academy of Sciences (INR RAN)

Research output: Contribution to journal › Conference article › peer-review

Abstract

Equal channel angular extrusion (ECAE) has been used to develop an ultrafine grain (UFG) structure, with a 0.4 μm grain size, in Al-alloy 1560. The structure and mechanical properties, including toughness, have been investigated in the as-deformed condition and after annealing. On annealing in the temperature range 200-350°C abnormal growth of discrete grains to several microns in size occurred, whereas when annealed at higher temperatures the UFG structure coarsened uniformly. The as-deformed and lightly annealed states, both with UFG structures, showed substantially higher strengths, but lower ductility and toughness, compared to UFG material annealed to produce a 5 μm grain size.

Original language	English
Pages (from-to)	839-842
Number of pages	4
Journal	Nanostructured Materials
Volume	12
Issue number	5
DOIs	https://doi.org/10.1016/S0965-9773(99)00247-0
Publication status	Published - 1999
Event	Proceedings of the 1998 4th International Conference on Nanostructured Materials (NANO '98) - Stockholm, Swed Duration: 14 Jun 1998 → 19 Jun 1998

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title = "Structure and mechanical behaviour of an Al-Mg alloy after equal channel angular extrusion",

abstract = "Equal channel angular extrusion (ECAE) has been used to develop an ultrafine grain (UFG) structure, with a 0.4 μm grain size, in Al-alloy 1560. The structure and mechanical properties, including toughness, have been investigated in the as-deformed condition and after annealing. On annealing in the temperature range 200-350°C abnormal growth of discrete grains to several microns in size occurred, whereas when annealed at higher temperatures the UFG structure coarsened uniformly. The as-deformed and lightly annealed states, both with UFG structures, showed substantially higher strengths, but lower ductility and toughness, compared to UFG material annealed to produce a 5 μm grain size.",

author = "Markushev, {M. V.} and Murashkin, {M. Yu} and Prangnell, {P. B.} and A. Gholinia and Maiorova, {O. A.}",

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T1 - Structure and mechanical behaviour of an Al-Mg alloy after equal channel angular extrusion

AU - Markushev, M. V.

AU - Murashkin, M. Yu

AU - Prangnell, P. B.

AU - Gholinia, A.

AU - Maiorova, O. A.

PY - 1999

Y1 - 1999

N2 - Equal channel angular extrusion (ECAE) has been used to develop an ultrafine grain (UFG) structure, with a 0.4 μm grain size, in Al-alloy 1560. The structure and mechanical properties, including toughness, have been investigated in the as-deformed condition and after annealing. On annealing in the temperature range 200-350°C abnormal growth of discrete grains to several microns in size occurred, whereas when annealed at higher temperatures the UFG structure coarsened uniformly. The as-deformed and lightly annealed states, both with UFG structures, showed substantially higher strengths, but lower ductility and toughness, compared to UFG material annealed to produce a 5 μm grain size.

AB - Equal channel angular extrusion (ECAE) has been used to develop an ultrafine grain (UFG) structure, with a 0.4 μm grain size, in Al-alloy 1560. The structure and mechanical properties, including toughness, have been investigated in the as-deformed condition and after annealing. On annealing in the temperature range 200-350°C abnormal growth of discrete grains to several microns in size occurred, whereas when annealed at higher temperatures the UFG structure coarsened uniformly. The as-deformed and lightly annealed states, both with UFG structures, showed substantially higher strengths, but lower ductility and toughness, compared to UFG material annealed to produce a 5 μm grain size.

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T2 - Proceedings of the 1998 4th International Conference on Nanostructured Materials (NANO '98)

Y2 - 14 June 1998 through 19 June 1998

ER -

Structure and mechanical behaviour of an Al-Mg alloy after equal channel angular extrusion

Abstract

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