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Article

Flow Stress Modelling and 3D Processing Maps of Al4.5Zn4.5Mg1Cu0.12Zr Alloy with Different Scandium Contents

by
Maxim G. Khomutov
*,
Andrey V. Pozdniakov
,
Alexander Yu. Churyumov
,
Ruslan Yu. Barkov
,
Alexey N. Solonin
and
Maria V. Glavatskikh
Department of Physical Metallurgy of Non-Ferrous Metals, National University of Science and Technology “MISiS”, Leninsky Prospekt 4, 119049 Moscow, Russia
*
Author to whom correspondence should be addressed.
Appl. Sci. 2021, 11(10), 4587; https://doi.org/10.3390/app11104587
Submission received: 29 April 2021 / Revised: 13 May 2021 / Accepted: 14 May 2021 / Published: 18 May 2021
(This article belongs to the Special Issue Metal Forming)
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Abstract

The hot deformation behaviour of an Al4.5Zn4.5Mg1Cu0.12Zr based alloy with 0.05, 0.1 and 0.15% Sc was investigated at temperatures between 300–450 °C and a strain rate of 0.1–15 s−1. The materials constants of a flow stress model based on the Zener-Hollomon parameter were determined (AARE was 5.8%). Three-dimensional processing maps were established by combining power dissipation efficiency and flow stability diagrams. Based on processing maps analysis and microstructures investigations, the optimal deformation parameters were determined as a temperature range of 350–400 °C and strain rates of 0.1–1 s−1 for the alloys with 0.05% and 0.1% Sc, and 0.1 s−1 for the alloy with 0.15% Sc.
Keywords: hot deformation behaviour; flow stress; 3D processing map; aluminium alloys; Al3(Sc,Zr) hot deformation behaviour; flow stress; 3D processing map; aluminium alloys; Al3(Sc,Zr)

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MDPI and ACS Style

Khomutov, M.G.; Pozdniakov, A.V.; Churyumov, A.Y.; Barkov, R.Y.; Solonin, A.N.; Glavatskikh, M.V. Flow Stress Modelling and 3D Processing Maps of Al4.5Zn4.5Mg1Cu0.12Zr Alloy with Different Scandium Contents. Appl. Sci. 2021, 11, 4587. https://doi.org/10.3390/app11104587

AMA Style

Khomutov MG, Pozdniakov AV, Churyumov AY, Barkov RY, Solonin AN, Glavatskikh MV. Flow Stress Modelling and 3D Processing Maps of Al4.5Zn4.5Mg1Cu0.12Zr Alloy with Different Scandium Contents. Applied Sciences. 2021; 11(10):4587. https://doi.org/10.3390/app11104587

Chicago/Turabian Style

Khomutov, Maxim G., Andrey V. Pozdniakov, Alexander Yu. Churyumov, Ruslan Yu. Barkov, Alexey N. Solonin, and Maria V. Glavatskikh. 2021. "Flow Stress Modelling and 3D Processing Maps of Al4.5Zn4.5Mg1Cu0.12Zr Alloy with Different Scandium Contents" Applied Sciences 11, no. 10: 4587. https://doi.org/10.3390/app11104587

APA Style

Khomutov, M. G., Pozdniakov, A. V., Churyumov, A. Y., Barkov, R. Y., Solonin, A. N., & Glavatskikh, M. V. (2021). Flow Stress Modelling and 3D Processing Maps of Al4.5Zn4.5Mg1Cu0.12Zr Alloy with Different Scandium Contents. Applied Sciences, 11(10), 4587. https://doi.org/10.3390/app11104587

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