TY - CHAP

T1 - Investigation of the dynamic grain structure evolution during hot extrusion of En AW-6082

AU - Güzel, A.

AU - Ben Khalifa, Noomane

AU - Jäger, Andreas

AU - Tekkaya, A. Erman

N1 - Conference code: 10

PY - 2012

Y1 - 2012

N2 - Experimental determination of grain structure evolution in an Al-Mg-Si alloy (EN AW-6082) during hot forward extrusion is investigated. In order to observe the development of grains and their orientation under severe plastic deformation at elevated temperatures, a miniature forward extrusion setup was designed. The extrusion butt was quenched immediately after extrusion to avoid secondary recrystallization effects like static recrystallization and grain growth, thereby preserving the evolution of grain structure during deformation. The material flow within the extruded billet was determined by finite element simulations. Microscopic analysis over the material flow lines and finite element analyses allowed the observation and prediction of the dynamic evolution of grains at an arbitrary material point undergoing plastic deformation. The results provide a database for the development material models for predicting and simulating the evolution of microstructure during the hot deformation of EN AW-6082 alloy.

AB - Experimental determination of grain structure evolution in an Al-Mg-Si alloy (EN AW-6082) during hot forward extrusion is investigated. In order to observe the development of grains and their orientation under severe plastic deformation at elevated temperatures, a miniature forward extrusion setup was designed. The extrusion butt was quenched immediately after extrusion to avoid secondary recrystallization effects like static recrystallization and grain growth, thereby preserving the evolution of grain structure during deformation. The material flow within the extruded billet was determined by finite element simulations. Microscopic analysis over the material flow lines and finite element analyses allowed the observation and prediction of the dynamic evolution of grains at an arbitrary material point undergoing plastic deformation. The results provide a database for the development material models for predicting and simulating the evolution of microstructure during the hot deformation of EN AW-6082 alloy.

KW - Engineering

KW - Warmstrangpressen

KW - starke plastische Verformung

KW - Vorwärtsfließpressen

KW - Finite-Elemente-Simulation

KW - Finite-Elemente-Analyse

KW - plastische Deformation

KW - Korngefüge

KW - experimentelle Untersuchung

KW - Mikroskopie

KW - Aluminiummagnesiumsiliciumlegierung

KW - Manganzusatz

KW - Eisenzusatz

KW - Chromzusatz

KW - Kornorientierung

KW - Strömungssimulation

KW - Feststoffströmung

KW - Mikrogefüge

UR - http://www.gbv.de/dms/tib-ub-hannover/757202179.pdf

M3 - Article in conference proceedings

VL - 1

SP - 603

EP - 609

BT - Proceedings of the Tenth International Aluminum Extrusion Technology Seminar

PB - Extrusion Technology for Aluminum Profiles Foundation

T2 - 10th International Aluminum Extrusion Technology Seminar & Exposition - ET-2012

Y2 - 15 May 2012 through 18 May 2012

ER -