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Effect of welding sequence on residual stress distributions in GTA welding of AA5251 plate

  • A. R. Kohandehghan and S. Serajzadeh
Published/Copyright: May 18, 2013
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 103 Issue 3

Abstract

In this paper, a thermo-mechanical model has been used to predict the temperature history and residual stress distribution in gas tungsten arc welding of AA5251 plates. This model has also been utilized to estimate the residual stresses under different welding sequences, while in the model the effect of temperature on material properties were taken into account. In order to verify the predictions, residual stresses within the welded samples and weld pool geometry were experimentally measured employing hole drilling and macro-examination of weld cross-section, respectively. The comparison between numerical and experimental data shows a reasonable agreement. The predictions show that the welding sequence has a major effect on maximum temperature and temperature distribution as well as stress and plastic strain distributions around the weld.

Keywords: Gas tungsten arc welding; Residual stress; Welding sequence; Aluminum alloy 5251; Mathematical modeling
∗ Correspondence address, Dr. Siamak Serajzadeh, Department of Materials Science and Engineering, Sharif University of Technology, Tehran, Iran, Tel.: +28 21 66165 218, Fax: +28 21 66005 717. E-mail:

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Received: 2010-3-26
Accepted: 2011-9-1
Published Online: 2013-05-18
Published in Print: 2012-03-01

© 2012, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.110605
Keywords for this article
Gas tungsten arc welding; Residual stress; Welding sequence; Aluminum alloy 5251; Mathematical modeling

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. Free-surface enhanced continuum model predicts size-effect for pillar compression at micro- and nano-scale
  5. Modelling of microstructural evolution on complex paths of large plastic deformation
  6. Melting temperature of metallic nanoparticles embedded in a rigid matrix
  7. On the coupled growth of oxide phases during internal oxidation of Ag–Sn–Bi alloys
  8. Phase diagram of the Sb–Te–I system and thermodynamic properties of SbTeI
  9. Pressureless co-sintering behaviour of a steel/cemented carbide component: model bimaterial
  10. Rafting structure formation during solution treatment in a nickel-based superalloy
  11. A model to calculate the viscosity of silicate melts
  12. Prediction of glass transition temperatures of aromatic heterocyclic polymers
  13. Relationship between the γ and some parameters of Fe-based bulk metallic glasses
  14. Growth of rare-earth zirconates-based pyrochlore buffer layers on YSZ for YBCO-coated conductors via chemical solution deposition
  15. Preparation and characterization of low temperature sintering nanocrystalline TiO2 prepared via the sol-gel method using titanium(IV) butoxide applicable to flexible dye sensitized solar cells
  16. Effects of preparation methods on color properties of ZnO-based nano-crystalline green pigments
  17. Effect of reaction media on the formation of CdS nanorods
  18. Effect of titanium addition on structure and properties of the as-cast high Cr–Mo white iron
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  20. Electrochemical machining of Al/15% SiCP composites through a response surface methodology-based approach
  21. Effects of nanoclay on rutting and fatigue resistance of bitumen binder
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