Comparative Mechanical and Microstructure properties analysis of Friction Stir Welded and TIG Welded AA6061-T6 Similar joints
Keywords:
Weld Zones, Friction stir welding, Metallurgical Test, Mechanical TestAbstract
In this study, 6061-T6 aluminium alloy plates in 4mm thickness that are particularly used for aerospace and automotive industries were welded using Tungsten Inert Gas(TIG) welding and Friction Stir Welding(FSW) methods as similar joints with one side pass with parameters of varying tool rotation, weld speed and 2.3 degree tool tilt angle. Tensile tests results showed high yield stress values for FSW joints. The weld zones cross sections were analysed with light optical microscopy (LOM). Micro Vickers hardness test gave the required result for FSW welded and TIG welded AA6061-T6 aluminium alloy plates. While fatigue test results showed all similar welded joints have fatigue strength close to each other.
References
1. M. Czechowski (2005) ‘Low-cycle fatigue of friction stir welded Al–Mg alloys’ Journalof Materials Processing Technology, Vol.164-165, pp.1001-1006.
2. D.R. Ni, D.L. Chen, J. Yang, Z.Y. Ma (2014) ‘Low cycle fatigue properties of friction stir welded joints of a semi-solid processed AZ91D magnesium alloy’ Journal of Materials and Design, Vol.56, pp.1-8.
3. G. Padmanaban, V. Balasubramanian, G. Madhusudhan Reddy(2011) ‘Fatigue crack growth behaviour of pulsed current gas tungsten arc, friction stir and laser beam welded AZ31B magnesium alloy joints’ Journal of Materials Processing Technology, Vol.211, pp.1224- 1233.
4. Michael Besel, Yasuko Besel, Ulises Alfaro Mercado, Toshifumi Kakiuchi, Yoshihiko Uematsu (2015) ‘Fatigue behavior of friction stir welded Al–Mg–Sc alloy’ International Journal of Fatigue, Vol.77, pp.1-11.
5. L. Boni, A. Lanciotti, C. Polese (2015)‘Size effect in the fatigue behaviour of Friction Stir Welded plates’ International Journal of Fatigue, Vol.80, pp.238-245.
6. V.X. Tran, J. Pan, T. Pan (2010) ‘Fatigue behaviour of spot friction welds in lap-shear and cross-tension specimens of dissimilar aluminium sheets’ International Journal of Fatigue, Vol.32, pp.1022-1041.
7. D.R. Ni, D.L. Chen, B.L. Xiao, D. Wang, Z.Y. Ma (2013) ‘Residual stresses and high cycle fatigue properties of friction stir welded SiCp/AA2009 composites’ International Journal of Fatigue, Vol.55, pp.64-73.
8. H.M. Rao, J.B. Jordon, B. Ghaffari, X. Su, A.K. Khosrovaneh, M.E. Barkey, W. Yuan, M. Guo (2016) ‘Fatigue and fracture of friction stir linear welded dissimilar aluminum-to-magnesium alloys’ International Journal of Fatigue,Vol.82, pp.737-747.
9. Z. Barsoum, M. Khurshid, I. Barsoum (2012) ‘Fatigue strength evaluation of friction stir welded aluminium joints using the nominal and notch stress concepts’ Materials and Design, Vol.41, pp.231-238.
10. Soran Hassanifard, Masoud Mohammadpour, Hossein Ahmadi Rashid (2014) ‘A novel method for improving fatigue life of friction stir spot welded joints’ using localized plasticity’ Materials and Design, Vol.53, pp.962-971. 11. Beytullah Gungor, Erdinc Kaluc, Emel Taban, Aydin Sik (2014) ‘Mechanical, fatigue and microstructural properties of friction stir welded 5083-H111 and 6082- T651 aluminum alloys’ Materials and Design, Vol.56, pp.84-90.
12. Yong Zhao, Zhengping Lu, Keng Yan, Linzhao Huang (2015)‘Microstructural characterizations and mechanical properties in underwater friction stir welding of aluminum and magnesium dissimilar alloys’ Materials and Design,Vol.65, pp.675-681.
13. Athanasios Toumpis, Alexander Galloway, Lars Molter, Helena Polezhayeva (2015) ‘Systematic investigation of the fatigue performance of a friction stir welded low alloy steel’ Materials and Design, Vol.80, pp.16-128.
14. Banglong Fu, Guoliang Qin, Fei Li, Xiangmeng Meng, Jianzhong Zhang, Chuansong Wu (2015) ‘Friction stir welding process of dissimilar metals of 6061-T6aluminum alloy to AZ31B magnesium alloy’ Journal of Material Processing Technology, Vol.218, pp.38-47.
15. H. Wohlfahrt, Th. Nitschke-Pagel, W. Zinn (2004) ‘Optimization of the fatigue behaviour of welded joints by means of shot peening - a comparison of results on steel and aluminium joints’ Fatigue Fracture Engineering Materials Structure, Vol.27, pp.785-795.
16. G. M. Xie, Z. Y. Ma2 and L. Geng1 (2015) ‘Effects of Friction Stir Welding Parameters on Microstructures and Mechanical Properties of Brass Joints’ Materials Transactions, Vol.49, No.7, pp.1698-1701.
2. D.R. Ni, D.L. Chen, J. Yang, Z.Y. Ma (2014) ‘Low cycle fatigue properties of friction stir welded joints of a semi-solid processed AZ91D magnesium alloy’ Journal of Materials and Design, Vol.56, pp.1-8.
3. G. Padmanaban, V. Balasubramanian, G. Madhusudhan Reddy(2011) ‘Fatigue crack growth behaviour of pulsed current gas tungsten arc, friction stir and laser beam welded AZ31B magnesium alloy joints’ Journal of Materials Processing Technology, Vol.211, pp.1224- 1233.
4. Michael Besel, Yasuko Besel, Ulises Alfaro Mercado, Toshifumi Kakiuchi, Yoshihiko Uematsu (2015) ‘Fatigue behavior of friction stir welded Al–Mg–Sc alloy’ International Journal of Fatigue, Vol.77, pp.1-11.
5. L. Boni, A. Lanciotti, C. Polese (2015)‘Size effect in the fatigue behaviour of Friction Stir Welded plates’ International Journal of Fatigue, Vol.80, pp.238-245.
6. V.X. Tran, J. Pan, T. Pan (2010) ‘Fatigue behaviour of spot friction welds in lap-shear and cross-tension specimens of dissimilar aluminium sheets’ International Journal of Fatigue, Vol.32, pp.1022-1041.
7. D.R. Ni, D.L. Chen, B.L. Xiao, D. Wang, Z.Y. Ma (2013) ‘Residual stresses and high cycle fatigue properties of friction stir welded SiCp/AA2009 composites’ International Journal of Fatigue, Vol.55, pp.64-73.
8. H.M. Rao, J.B. Jordon, B. Ghaffari, X. Su, A.K. Khosrovaneh, M.E. Barkey, W. Yuan, M. Guo (2016) ‘Fatigue and fracture of friction stir linear welded dissimilar aluminum-to-magnesium alloys’ International Journal of Fatigue,Vol.82, pp.737-747.
9. Z. Barsoum, M. Khurshid, I. Barsoum (2012) ‘Fatigue strength evaluation of friction stir welded aluminium joints using the nominal and notch stress concepts’ Materials and Design, Vol.41, pp.231-238.
10. Soran Hassanifard, Masoud Mohammadpour, Hossein Ahmadi Rashid (2014) ‘A novel method for improving fatigue life of friction stir spot welded joints’ using localized plasticity’ Materials and Design, Vol.53, pp.962-971. 11. Beytullah Gungor, Erdinc Kaluc, Emel Taban, Aydin Sik (2014) ‘Mechanical, fatigue and microstructural properties of friction stir welded 5083-H111 and 6082- T651 aluminum alloys’ Materials and Design, Vol.56, pp.84-90.
12. Yong Zhao, Zhengping Lu, Keng Yan, Linzhao Huang (2015)‘Microstructural characterizations and mechanical properties in underwater friction stir welding of aluminum and magnesium dissimilar alloys’ Materials and Design,Vol.65, pp.675-681.
13. Athanasios Toumpis, Alexander Galloway, Lars Molter, Helena Polezhayeva (2015) ‘Systematic investigation of the fatigue performance of a friction stir welded low alloy steel’ Materials and Design, Vol.80, pp.16-128.
14. Banglong Fu, Guoliang Qin, Fei Li, Xiangmeng Meng, Jianzhong Zhang, Chuansong Wu (2015) ‘Friction stir welding process of dissimilar metals of 6061-T6aluminum alloy to AZ31B magnesium alloy’ Journal of Material Processing Technology, Vol.218, pp.38-47.
15. H. Wohlfahrt, Th. Nitschke-Pagel, W. Zinn (2004) ‘Optimization of the fatigue behaviour of welded joints by means of shot peening - a comparison of results on steel and aluminium joints’ Fatigue Fracture Engineering Materials Structure, Vol.27, pp.785-795.
16. G. M. Xie, Z. Y. Ma2 and L. Geng1 (2015) ‘Effects of Friction Stir Welding Parameters on Microstructures and Mechanical Properties of Brass Joints’ Materials Transactions, Vol.49, No.7, pp.1698-1701.
Published
2018-04-21
Issue
Section
Research Article
