Evolution of Microstructure and Precipitation in Heat-Treatable Aluminium Alloys during ECA Pressing and Subsequent Heat Treatment

Nong Gao; Marco J. Starink; Minoru Furukawa; Z. Horita; Cheng Xu; Terence G. Langdon

doi:10.4028/www.scientific.net/MSF.503-504.275

Paper Titles

Inhomogeneity of Microstructure and Creep of ECAP Aluminium
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Spatial Uniformity of the Rate of Grain Coarsening in a Submicron Al-Sc Alloy Produced by Severe Plastic Deformation
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Mechanical Properties of Ultrafine Grained Metals under Cyclic and Monotonic Loads: An Overview
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Monotonic and Cyclic Behavior of Ultrafine Grain Metals:Overview
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Evolution of Microstructure and Precipitation in Heat-Treatable Aluminium Alloys during ECA Pressing and Subsequent Heat Treatment
p.275

Effect of the Temperature of Accumulative Roll Bonding on the Microstructure and Properties of Twin-Roll Cast AA8006 Alloy
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Microstructure and Mechanical Properties Resulting from Conventional Cold Extrusion of Equal Channel Angular Extruded Aluminium Alloy AA6101
p.287

Effect of Second Phase Particles on Ultra-Fine Grain Evolution during Multi-Directional Forging of Austenitic Stainless Steel
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Magnetic Properties and Microstructure of a FeCo Ferritic Steel after Severe Plastic Deformation
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HomeMaterials Science ForumMaterials Science Forum Vols. 503-504Evolution of Microstructure and Precipitation in...

Evolution of Microstructure and Precipitation in Heat-Treatable Aluminium Alloys during ECA Pressing and Subsequent Heat Treatment

Abstract:

The precipitation and evolution of microstructure in a spray-cast Al-7034 alloy and a commercial wrought Al-2024 alloy were studied after equal-channel angular pressing (ECAP) using transmission electron microscopy and differential scanning calorimetry (DSC). Microstructural examination showed the grain sizes of both alloys were reduced to the range of ~0.3–0.5 μm through ECAP. The DSC analysis identified the occurrence of thermal effects involving the formation, coarsening, dissolution and melting of the precipitate phases and concurrent recrystallization. The heating and ageing response of the alloys processed by ECAP was identified by micro-hardness testing of the samples after interrupted heating and ageing treatments.

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Periodical:

Materials Science Forum (Volumes 503-504)

Pages:

275-280

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.503-504.275

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Online since:

January 2006

Authors:

Nong Gao, Marco J. Starink, Minoru Furukawa, Z. Horita, Cheng Xu, Terence G. Langdon

Keywords:

Aging Treatment, Aluminium Alloy, Dye Sensitized Solar Cell (DSSC), Equal-Channel Angular Pressing (ECAP)

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