Paper Title:
Constitutive Equations for Hot Extrusion of AA6005A, AA6063 and AA7020 Alloys
  Abstract

Constitutive equations relate thermo-mechanical parameters, i.e. strain (ε), strain rate (έ) and temperature (T), with flow stress (σ). The most popular constitutive relationship, among those used in the study of hot deformation, is the phenomenological sinh Garofalo equation. In recent years several papers described the hot deformation of aluminum alloys by mean of hot torsion testing. However, sinh constitutive parameters are seldomly available in literature even for the commonest aluminum alloys used today by the extrusion industry. This paper presents the result of the torsion tests providing constitutive equations for AA6005A, AA6063 and AA7020 alloys. The relative extrudabilities of these alloys were estimated by means of FEM simulation carried out by the HyperXtrude® software.

  Info
Periodical
Edited by
Luca Tomesani and Lorenzo Donati
Pages
43-50
DOI
10.4028/www.scientific.net/KEM.491.43
Citation
T. Pinter, M. El Mehtedi, "Constitutive Equations for Hot Extrusion of AA6005A, AA6063 and AA7020 Alloys", Key Engineering Materials, Vol. 491, pp. 43-50, 2012
Online since
September 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Zhi Guo Chen, Zi Qiao Zheng, Dong Feng Han
Abstract:The hot deformation behaviors and microstructure in Al-Cu-Li alloy containing small amount of Ag and Mg were investigated by transmission...
1925
Authors: Iram Raza Ahmad, Dong Wei Shu
Abstract:Magnesium alloys have been increasingly used in automobile, aerospace, consumer electronics and communication industries due to their low...
60
Authors: Mei Juan Hu, Peng Wang, Li Hong Han, Xin Li Han
Abstract:The dynamic mechanical behaviors of as-cast sour service drill pipe steel under development during hot deformation were studied in this paper...
266
Authors: Jai Gautam, Alexis G. Miroux, J. Moerman, Carla Barbatti, Peter van Liempt, Leo Kestens
Chapter 22: Thermomechanical Processing - Prof J. Jonas Symposium
Abstract:In the present study non-recrystallisation (Tnr) and Ar3 temperatures have been determined for the C-Mn steels from multi-pass hot torsion...
2722
Authors: Tamás Mikó, Peter Barkoczy
Chapter 2: Plastic deformation
Abstract:This paper presents an investigation about the occurrence of the dynamic recrystallization (DRX) during hot forming. Two 7075 aluminum alloy...
105