Skip to main content
Log in

Effect of Local Post Weld Heat Treatment on Tensile Properties in Friction Stir Welded 2219-O Al Alloy

  • Published:
Journal of Materials Engineering and Performance Aims and scope Submit manuscript

Abstract

To improve the formability of the aluminum alloy welds and overcome the size limitation of the bulk post weld heat treatment (BPWHT) on large size friction stir welded joints, a local post weld heat treatment method (LPWHT) was proposed. In this method, the resistance heating as the moving heat source is adopted to only heat the weld seam. The temperature field of LPWHT and its influence on the mechanical properties and formability of FSW 2219-O Al alloy joints was investigated. The evaluation of the tensile properties of FSW samples was also examined by mapping the global and local strain distribution using the digital image correlation methodology. The results indicated that the formability was improved greatly after LPWHT, while the hardness distribution of the FSW joint was homogenized. The maximum elongation can reach 1.4 times that of as-welded joints with increase the strength and the strain of the nugget zone increased from 3 to 8% when annealing at 300 °C. The heterogeneity on the tensile deformation of the as-welded joints was improved by the nugget zone showing large local strain value and the reason was given according to the dimple fracture characteristics at different annealing temperatures. The tensile strength and elongation of LPWHT can reach 93.3 and 96.1% of the BPWHT, respectively. Thus, the LPWHT can be advantageous compared to the BPWHT for large size welds.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10

Similar content being viewed by others

References

  1. A. Heinz, A. Haszler, C. Keidel, S. Moldenhauer, R. Benedictus, and W.S. Miller, Recent Development in Aluminum Alloys for Aerospace Applications, Mater. Sci. Eng. A, 2000, 280(1), p 102–107

    Article  Google Scholar 

  2. Z.L. Hu, X.S. Wang, Q. Pang, F. Huang, X.P. Qin, and S.J. Yuan, Experimental and Numerical Study on Hydroforming Characteristics of Friction Stir Welded Aluminum Alloy Tubes, Int. J. Adv. Manuf. Technol., 2015, 80(5), p 959–969

    Article  Google Scholar 

  3. H.J. Liu and X.L. Feng, Effect of Post-processing Heat Treatment on Microstructure and Microhardness of Water-Submerged Friction Stir Processed 2219-t6 Aluminum Alloy, Mater. Des., 2013, 47(9), p 101–105

    Article  Google Scholar 

  4. C. Genevois, A. Deschamps, A. Denquin, and B. Doisneau-Cottignies, Quantitative Investigation of Precipitation and Mechanical Behaviour for AA2024 Friction Stir Welds, Acta Mater., 2005, 53(8), p 2447–2458

    Article  Google Scholar 

  5. R.S. Mishra and Z.Y. Ma, Friction Stir Welding and Processing, Mater. Sci. Eng. R, 2005, 50(1), p 13–58

    Google Scholar 

  6. R. Nandan, T. DebRoy, and H.K.D.H. Bhadeshia, Recent Advances in Friction-Stir Welding-Process, Weldment Structure and Properties, Prog. Mater Sci., 2008, 53(6), p 980–1023

    Article  Google Scholar 

  7. A. Simar, Y. Bréchet, B.D. Meester, A. Denquin, C. Gallais, and T. Pardoen, Integrated Modeling of Friction Stir Welding of 6xxx Series Al Alloys: Process, Microstructure and Properties, Prog. Mater Sci., 2012, 57(1), p 95–183

    Article  Google Scholar 

  8. A. Sullivan and J.D. Robson, Microstructural Properties of Friction Stir Welded and Post-weld Heat-Treated 7449 Aluminum Alloy Thick Plate, Mater. Sci. Eng. A, 2008, 478(1–2), p 351–360

    Article  Google Scholar 

  9. M. Peel, A. Steuwer, M. Preuss, and P.J. Withers, Microstructure, Mechanical Properties and Residual Stresses as a Function of Welding Speed in Aluminium AA5083 Friction Stir Welds, Acta Mater., 2003, 51(16), p 4791–4801

    Article  Google Scholar 

  10. D.A. Wang and S.C. Lee, Microstructures and Failure Mechanisms of Friction Stir Spot Welds of Aluminum 6061-t6 Sheets, J. Mater. Process. Technol., 2007, 186(1–3), p 291–297

    Article  Google Scholar 

  11. C. Sharma, D.K. Dwivedi, and P. Kumar, Effect of Welding Parameters on Microstructure and Mechanical Properties of Friction Stir Welded Joints of AA7039 Aluminum Alloy, Mater. Des., 2012, 36, p 379–390

    Article  Google Scholar 

  12. G. İpekoğlu, S. Erim, and G. Çam, Investigation into the Influence of Post-weld Heat Treatment on the Friction Stir Welded aa6061 Al-Alloy Plates with Different Temper Conditions, Metall. Mater. Trans. A, 2014, 45(2), p 864–877

    Article  Google Scholar 

  13. G. İpekoğlu, S. Erim, and G. Çam, Effects of Temper Condition and Post Weld Heat Treatment on the Microstructure and Mechanical Properties of Friction Stir Butt-Welded AA7075 Al Alloy Plates, Int. J. Adv. Manuf. Technol., 2014, 70(1–4), p 201–213

    Google Scholar 

  14. Y.C. Chen, H.J. Liu, and J.C. Feng, Effect of Post-weld Heat Treatment on the Mechanical Properties of 2219-O Friction Stir Welded Joints, J. Mater. Sci., 2005, 41(17), p 297–299

    Google Scholar 

  15. J.C. Feng, Y.C. Chen, and H.J. Liu, Effects of Post-weld Heat Treatment on Microstructure and Mechanical Properties of Friction Stir Welded Joints of 2219-O Aluminium Alloy, Mater. Sci. Technol., 2006, 43(1), p 134–143

    Google Scholar 

  16. S.M. Bayazid, H. Farhangi, H. Asgharzadeh, L. Radan, A. Ghahramani, and A. Mirhaji, Effect of Cyclic Solution Treatment on Microstructure and Mechanical Properties of Friction Stir Welded 7075 Al Alloy, Mater. Sci. Eng. A, 2015, 649, p 293–300

    Article  Google Scholar 

  17. Z.L. Hu, S.J. Yuan, X.S. Wang, G. Liu, and Y. Huang, Effect of Post-weld Heat Treatment on the Microstructure and Plastic Deformation Behavior of Friction Stir Welded 2024, Mater. Des., 2011, 32(10), p 5055–5060

    Article  Google Scholar 

  18. S.J. Yuan, Z.L. Hu, and X.S. Wang, Formability and Microstructural Stability of Friction Stir Welded Al Alloy Tube During Subsequent Spinning and Post Weld Heat Treatment, Mater. Sci. Eng. A, 2012, 558(48), p 586–591

    Article  Google Scholar 

  19. G.N. Chu, Y.L. Lin, and G. Chen, A Green Line Heating Forming Technology for Ultra-Thick Plate, Int. J. Adv. Manuf. Technol., 2016, 87(5–8), p 1977–1984

    Article  Google Scholar 

Download references

Acknowledgments

This study was supported by the National Natural Science Foundation of China (Grant Nos. 51475121 and 51405102). The authors would like to express their sincere appreciation to these funding organizations.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Yanli Lin.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Chu, G., Sun, L., Lin, C. et al. Effect of Local Post Weld Heat Treatment on Tensile Properties in Friction Stir Welded 2219-O Al Alloy. J. of Materi Eng and Perform 26, 5425–5431 (2017). https://doi.org/10.1007/s11665-017-2998-7

Download citation

  • Received:

  • Revised:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11665-017-2998-7

Keywords

Navigation