Physical and Numerical Simulation of Thermo-Mechanical Properties in the Weld Heat Affected Zone of an AlMgSi-Alloy

Ossama Dreibati; R. Ossenbrink; Nikolay Doynov; Vesselin Michailov

doi:10.4028/www.scientific.net/MSF.706-709.1491

Paper Titles

Study of Transverse Crack Formation of a Nb-Peritectic Steel
p.1466

Characterization of WELD Heat Affected Zone of ASTM A709 HPS 100W
p.1474

First-Principles Study of H₂O Adsorption on Oxygen-Covered Fe Surface
p.1481

Austenite-Bainite Transformation Kinetic Model for the Powder-Metallurgical Steel Astaloy 85 Mo
p.1485

Physical and Numerical Simulation of Thermo-Mechanical Properties in the Weld Heat Affected Zone of an AlMgSi-Alloy
p.1491

The Physical and Numerical Modeling of Heat Treatment the Experimental Complex-Phase (CP) Steel
p.1497

Modelling the Flow Behaviour of Dual-Phase Steels with Different Martensite Volume Fractions by Finite Element Method
p.1503

Computer Simulation of Spinodal Decomposition in Duplex Stainless Steels
p.1509

The Influence of the Impeller Shape on Hydrogen Removal from Liquid Aluminium - Physical Model
p.1515

HomeMaterials Science ForumMaterials Science Forum Vols. 706-709Physical and Numerical Simulation of...

Physical and Numerical Simulation of Thermo-Mechanical Properties in the Weld Heat Affected Zone of an AlMgSi-Alloy

Abstract:

The thermomechanical properties of an AlMg0,8Si1 (corresponds to EN AW-6181) alloy in T4 state (Ecodal^®608) were investigated under coldArc^® welding conditions using Gleeble 3500 concerning the numerical simulations of residual welding stresses and distortions. Thereby, tensile tests were carried out during the heating phase, cooling phase and after natural aging up to 10 days. Thus, the effect of weld cycle and corresponding dissolution of β''(Mg₂Si)- precipitates on the mechanical properties was physically simulated. Furthermore, two phase transformation models were used to simulate the dissolution of hardening precipitates as a result of weld temperature cycles. The used models were compared, considering their capabilities and accuracy.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Materials Science Forum (Volumes 706-709)

Pages:

1491-1496

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.706-709.1491

Citation:

Cite this paper

Online since:

January 2012

Authors:

Ossama Dreibati, R. Ossenbrink, Nikolay Doynov, Vesselin Michailov

Keywords:

Al-Mg-Si Alloy, Grong Model, Leblond Model, Mg₂Si-Precipitates, Numerical Simulation, Physical Simulation

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] F. Ostermann: Anwendungstechnologie Aluminium. Berlin: Springer-Verlag (1998).

Google Scholar

[2] J. Kotowski, V. G. Michailov and H. Wohlfahrt: Calculation of Microstructure Evolution in 6082-T6 Welds for Residual Stresses and Distorsion Simulation. Conf. Proc. 16-20 September 2002, Katsiveli, Crimea, Ukraine, pp.87-91.

Google Scholar

[3] O.R. Myhr and Ø. Grong. Process modelling applied to 6082-T6 aluminium weldment-I. reaction kinetics. Acta metall. mater. Vol. 39, Nr. 11, 1991, pp.2693-2702.

DOI: 10.1016/0956-7151(91)90085-f

Google Scholar

[4] Ø. Grong: Metallurgical Modelling of Welding. Material Modelling Series, IOM, (1997).

Google Scholar

[5] S. Gouttebroze, A. Mo, Ø. Grong, K.O. Pedersen, and H.G. Fjær: A New Constitutive Model for the Finite Element Simulation of Local Hot Forming of Aluminum 6xxx Alloys. The Minerals, Metals & Materials Society and ASM International (2008).

DOI: 10.1007/s11661-007-9443-8

Google Scholar

[6] J.B. Leblond, J. Devaux: A New Kinetic Model for Anisothermal Metallurgical Transformations in Steel Including Effect of Austenite Grain Size. Acta Met 32, 1984, p.137–146.

DOI: 10.1016/0001-6160(84)90211-6

Google Scholar