Effect of Mg content on microstructure, texture and strength of severely equal channel angular pressed aluminium-magnesium alloys

Kalsar R, Yadav D, Sharma A, Brokmeier HG, May J, Höppel HW, Skrotzki W, Suwas S (2020)

Publication Type: Journal article

Publication year: 2020

Journal

Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing Elsevier

Book Volume: 797

Article Number: 140088

DOI: 10.1016/j.msea.2020.140088

Abstract

Equal channel angular pressing was carried out on Al–Mg alloys to study the effect of Mg addition on the microstructure, texture and strength after severe plastic deformation by 8 passes of equal channel angular pressing (ECAP) through route Bc. The increase in Mg content enhanced the propensity of continuous dynamic recrystallization and simultaneously decreased the average grain size of the alloy. The microstructure and local texture was heterogeneous across the billet thickness for all the samples, irrespective of composition. All the samples showed a shear-type bulk texture generally observed in face-centred cubic metals with strong BE/‾BE components. The weakening of the texture with increase in Mg content is attributed to the substructure evolution during the ECAP process. The grain size and dislocation density have been determined by X-ray diffraction line profile analysis. The experimentally determined yield strength of the ultrafine grained samples can be explained by a combination of solid solution, dislocation and grain size strengthening, the latter being predominant.

Authors with CRIS profile

Heinz Werner Höppel Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)

Additional Organisation(s)

Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)

Involved external institutions

Indian Institute of Science (IISc) IN India (IN) Technische Universität Dresden DE Germany (DE) Technische Universität Clausthal / Clausthal University of Technology DE Germany (DE)

How to cite

APA:

Kalsar, R., Yadav, D., Sharma, A., Brokmeier, H.G., May, J., Höppel, H.W.,... Suwas, S. (2020). Effect of Mg content on microstructure, texture and strength of severely equal channel angular pressed aluminium-magnesium alloys. Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing, 797. https://dx.doi.org/10.1016/j.msea.2020.140088

MLA:

Kalsar, R., et al. "Effect of Mg content on microstructure, texture and strength of severely equal channel angular pressed aluminium-magnesium alloys." Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 797 (2020).

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