Effect of Mg additions on the work hardening behavior of aluminum over a wide range of strain

Nguyen Q. Chinh; Judit Illy; Zsolt Kovács; Zenji Horita; Terence G. Langdon

doi:10.4028/www.scientific.net/msf.396-402.1007

Effect of Mg additions on the work hardening behavior of aluminum over a wide range of strain

Nguyen Q. Chinh, Judit Illy, Zsolt Kovács, Zenji Horita, Terence G. Langdon

Materials Processing

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

8 Citations (Scopus)

Abstract

The effect of an Mg addition on the work hardening of high purity (4N) aluminum was investigated over a wide range of strain. The analysis of the true stress-true strain (σ - ε) curves of samples after annealing and equal-channel angular pressing (ECAP) shows that the addition of 3wt% Mg strongly influences the rate of work hardening of Al. Investigations using both mechanical testing and transmission electron microscopy (TEM) reveal the decreasing effect of Mg on the recovery properties of Al from the very early stage up to at least ε = 8 of plastic deformation. It is shown that the σ - ε relationship can be accurately described by an exponential-power law constitutive relationship over a wide range of strain for pure Al but for the Al-Mg alloy this constitutive equation cannot be extended to high strains.

Original language	English
Pages (from-to)	1007-1012
Number of pages	6
Journal	Materials Science Forum
Volume	396-402
Issue number	2
DOIs	https://doi.org/10.4028/www.scientific.net/msf.396-402.1007
Publication status	Published - Jan 1 2002
Event	Aluminium Alloys 2002 Their Physical and Mechnaical Properties: Proceedings of the 8th International Conference ICAA8 - Cambridge, United Kingdom Duration: Jul 2 2002 → Jul 5 2002

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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title = "Effect of Mg additions on the work hardening behavior of aluminum over a wide range of strain",

abstract = "The effect of an Mg addition on the work hardening of high purity (4N) aluminum was investigated over a wide range of strain. The analysis of the true stress-true strain (σ - ε) curves of samples after annealing and equal-channel angular pressing (ECAP) shows that the addition of 3wt% Mg strongly influences the rate of work hardening of Al. Investigations using both mechanical testing and transmission electron microscopy (TEM) reveal the decreasing effect of Mg on the recovery properties of Al from the very early stage up to at least ε = 8 of plastic deformation. It is shown that the σ - ε relationship can be accurately described by an exponential-power law constitutive relationship over a wide range of strain for pure Al but for the Al-Mg alloy this constitutive equation cannot be extended to high strains.",

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T1 - Effect of Mg additions on the work hardening behavior of aluminum over a wide range of strain

AU - Chinh, Nguyen Q.

AU - Illy, Judit

AU - Kovács, Zsolt

AU - Horita, Zenji

AU - Langdon, Terence G.

PY - 2002/1/1

Y1 - 2002/1/1

N2 - The effect of an Mg addition on the work hardening of high purity (4N) aluminum was investigated over a wide range of strain. The analysis of the true stress-true strain (σ - ε) curves of samples after annealing and equal-channel angular pressing (ECAP) shows that the addition of 3wt% Mg strongly influences the rate of work hardening of Al. Investigations using both mechanical testing and transmission electron microscopy (TEM) reveal the decreasing effect of Mg on the recovery properties of Al from the very early stage up to at least ε = 8 of plastic deformation. It is shown that the σ - ε relationship can be accurately described by an exponential-power law constitutive relationship over a wide range of strain for pure Al but for the Al-Mg alloy this constitutive equation cannot be extended to high strains.

AB - The effect of an Mg addition on the work hardening of high purity (4N) aluminum was investigated over a wide range of strain. The analysis of the true stress-true strain (σ - ε) curves of samples after annealing and equal-channel angular pressing (ECAP) shows that the addition of 3wt% Mg strongly influences the rate of work hardening of Al. Investigations using both mechanical testing and transmission electron microscopy (TEM) reveal the decreasing effect of Mg on the recovery properties of Al from the very early stage up to at least ε = 8 of plastic deformation. It is shown that the σ - ε relationship can be accurately described by an exponential-power law constitutive relationship over a wide range of strain for pure Al but for the Al-Mg alloy this constitutive equation cannot be extended to high strains.

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