Microstructure and strengthening model of Al-3%Mg alloy in a heat treated state subjected to ECAP process

• Autorzy: Snopiński P.

Identyfikatory

DOI

10.5604/01.3001.0012.7970

• Języki publikacji: EN

Abstrakty

EN

Purpose: The aim of this paper is to investigate the microstructure evolution of a heat treated Al-3%Mg aluminium alloy subjected to the ECAP (equal channel angular pressing process). Design/methodology/approach: Commercial Al-3%Mg alloy subjected to the solution treatment followed by an artificial aging was subjected to the 6 ECAP passes using a processing route Bc. Then the microstructure investigations using a light microscopy, scanning electron microscopy and transmission electron microscopy were carried out. Additionally the XRD technique was used to calculate lattice micro strain and dislocation density. Findings: The experimental results showed that the obtained microstructure is refined by mutual interactions of shear and microshear bands. The TEM investigation revealed typical for deformed aluminium alloys structure constituents such as dislocation-free grains, nonequilibrium grain boundaries, dislocation cell and (sub)grain structures. Research limitations/implications: The presented investigation results were carried out on samples, not on final products. Practical implications: Current research is moving towards to develop high strength material having a ultra-fine grained microstructure and increased mechanical strength. Originality/value: The paper focuses on the microstructure characterization of ECAP processed Al-3%Mg aluminium alloy. The relationship between the obtained microstructure and its contribution to the Yield strength is investigated.

Słowa kluczowe

EN

aluminium; ECAP; EBSD; TEM; XRD

PL

aluminium; ECAP; EBSD; TEM; XRD

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2018
• Tom: Vol. 90, nr 1
• Strony: 5--10
• Opis fizyczny: Bibliogr. 12 poz., rys., tab.

Twórcy

autor

Snopiński P.

• Institute of Engineering Materials and Biomaterials, Faculty of Mechanical Engineering, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland

Bibliografia

• [1] I.J. Polmear, Light Alloys: from Traditional Alloys to Nanocrystals, 4th Edition, Butterworth-Heinemann/Elsevier, UK, 2006.
• [2] E.A. Brandes, G.B. Brook (Eds.), Smithells Light Metals Handbook, Butterworth-Heinemann, 1998.
• [3] R.Z. Valiev, T.G. Langdon, Principles of equal-channel angular pressing as a processing tool for grain refinement, Progress in Materials Science 51/7 (2006) 881-981.
• [4] R.Z. Valiev, N.A. Enikeev, M.Y. Murashkin, V.U. Kazykhanov, X. Sauvage, On the origin of the extremely high strength of ultrafine-grained Al alloys produced by severe plastic deformation, Scripta Materialia 63 (2010) 949-952.
• [5] S. Malopheyev, R. Kaibyshev, Strengthening mechanisms in a Zr-modified 5083 alloy deformed to high strains, Materials Science and Engineering A 620 (2014) 246-252.
• [6] P. Snopiński, T. Tański, M. Sroka, M. Kremzer, The effect of heat treatment conditions on the structure evolution and mechanical properties of two binary Al-Mg alloys, Metalurgija 56 (2017) 329-332.
• [7] T. Tański, P. Snopiński, K. Prusik, M. Sroka, The effects of room temperature ECAP and subsequent aging on the structure and properties of the Al-3%Mg aluminium alloy, Materials Characterization 133 (2017) 184-195.
• [8] V.S. Zolotorevskiy, R.I. Dobrojinskaja, V.V. Cheverikin, E.A. Khamnagdaeva, A.V. Pozdniakov, V.S. Levchenko, E.S. Besogonova, Evolution of the structure and mechanical properties of sheets of the Al-4.7Mg-0.32Mn-0.21Sc-0.09Zr alloy due to deformation accumulated upon rolling, The Physics of Metals and Metallography 117/11 (2016) 1163-1169.
• [9] X. Yang, D. Wang, Z. Wu, J. Yi, S. Ni, Y. Du, M. Song, A coupled EBSD/TEM study of the microstructural evolution of multi-axial compressed pure Al and Al-Mg alloy, Materials Science and Engineering A 658 (2016) 16-27.
• [10] H.J. Roven, M.Y. Murashkin, R.Z. Valiev, Y. Liu, Structure and mechanical properties of nanostructured Al-Mg alloys processed by severe plastic deformation, Journal of Materials Science 48 (2013) 4681-4688.
• [11] R.Z. Valiev, N.A. Enikeev, T.G. Langdon, Towards superstrength of nanostructured materials and alloys produced by SPD, Kovove Materialy 49 (2011) 1-9.
• [12] T. Tański, P. Snopiński, O. Hilser, Microstructure and mechanical properties of two binary Al-Mg alloys deformed using equal channel angular pressing, Materialwissenschaft und Werkstofftechnik 48 (2017) 439-446.

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).