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The MPAW of Ti-3Al-2.5V Thin Sheets and Its Effects on Mechanical and Microstructural Properties

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Abstract

This research work deals with joining of Ti-3Al-2.5V titanium alloy thin sheets by means of microplasma arc welding (MPAW). An experimental set-up was developed to produce specimens welded in butt joint under controlled welding parameters, such as voltage, current, travel speed, and shielding gas flow rate. The performance of MPAW process was examined by mechanical properties tests and microstructural characterization. Results show that tensile strength and elongation of the welded specimens for a range of specific input heat are comparable to those of the base material (BM). Scanning electron microscopy (SEM) images of the fracture surface presented characteristics of ductile rupture. Studies on microstructure morphology of the specimens at the fusion zone (FZ) and heat-affected zone (HAZ) reveal occurrence of phase transformation from high temperature β phase to acicular \( \alpha^{\prime} \) phase, while the BM is of equiaxed α with intergranular β. An increasing variation in hardness was measured at the HAZ and FZ, which can be attributed to the presence of acicular \( \alpha^{\prime} \) phase and decreasing the amount of β phase at these regions. Based on the experimental results, it can be stated that MPAW process is an effective method for joining Ti-3Al-2.5V thin sheets provided appropriate welding parameters are used.

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References

  1. R.R. Boyer, Attributes, Characteristics, and Applications of Titanium and Its Alloys, JOM, 2010, 5(62), p 21–24

    Article  Google Scholar 

  2. G. Lutjering and J.C. Williams, Titanium, 2nd ed., Springer, Berlin, 2007

    Google Scholar 

  3. G. Welsch, F. Rodney, R. Boyer, and E.W. Collings, Materials Properties Handbook: Titanium Alloys, ASM International, Ohio, 1998

    Google Scholar 

  4. C. Leyens and P. Manfred, Titanium and Titanium Alloys, Fundamentals and Applications, Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, 2003

    Book  Google Scholar 

  5. A. Kumar, M. Sapp, J. Vincelli, and M.C. Gupta, A Study on Laser Cleaning and Pulsed Gas Tungsten Arc Welding of Ti-3Al-2.5V Alloy Tubes, J. Mater. Process. Tech., 2010, 210, p 64–67

    Article  Google Scholar 

  6. S. Wang and X. Wu, Investigation on the Microstructure and Mechanical Properties of Ti-6Al-4V Alloy Joints with Electron Beam Welding, Mater. Des., 2012, 36, p 663–670

    Article  Google Scholar 

  7. X.-L. Gao, L.-J. Zhang, J. Liu, and J.-X. Zhang, A Comparative Study of Pulsed Nd:Yag Laser Beam Welding and TIG Welding of Thin Ti6Al4V Titanium Alloy Plate, Mater. Sci. Eng. A, 2012, doi:10.1016/j.msea.2012.06.016

    Google Scholar 

  8. R.W. Fonda and K.E. Knipling, Texture Development in Near-alpha Ti Friction Stir Welds, Acta Mater., 2010, 58, p 6452–6463

    Article  Google Scholar 

  9. J.-C. Chen and C.-X. Pan, Welding of Ti-6Al-4V Alloy using Dynamically Controlled Plasma Arc Welding Process, Trans. Nonferr. Metal. Soc., 2011, 21, p 1506–1512

    Article  Google Scholar 

  10. A.B. Short, Gas Tungsten Arc Welding of α + β Titanium Alloys: A Review, Mater. Sci. Tech., 2009, 3(25), p 309–324

    Article  Google Scholar 

  11. R. Sanchez-Tovar, M.T. Montanes, and J. Garcia-Anton, Effect of Micro-plasma Arc Welding Technique on the Microstructure and Pitting Corrosion of AISI, 316L Stainless Steels in Heavy LiBr Brines, Corros. Sci., 2011, 53, p 2598–2610

    Article  Google Scholar 

  12. I.D. Harris, Plasma Arc Welding, Welding, Brazing and Soldering, Vol. 6, D.L. Olson, T.A. Siewert, S. Liu and G.R. Ed., ASM International, Ohio, 1993, p 195–199

  13. S.E. Barhorst, E.H. Daggett, S.A. Hilton, J.T. Prozek, and E. Spitzer, Plasma Arc Welding, Chap. 10. AWS WHB-2 90, American Welding Society, 1997

  14. F. Karimzadeh, M. Salehi, A. Saatchi, and M. Meratian, Effect of Microplasma Arc Welding Process Parameters on Grain Growth and Porosity Distribution of Thin Sheet Ti-6Al-4V Alloy Weldment, Mater. Manuf. Process., 2005, 20, p 205–219

    Article  Google Scholar 

  15. F. Javidrad and R. Rahamti, An Integrated Re-engineering Plan for the Manufacturing of Aerospace Components, Mater. Des., 2009, 30, p 1524–1532

    Article  Google Scholar 

  16. Thoriated Tungsten Electrodes, AWS Safety & Health Fact Sheet, American Welding Society, No. 27, 2003

  17. M.C. Gupta, Surface Preparation of Ti-3Al-2.5V Alloy Tubes by Fiber Laser and Welding, W911NF-05-1-0098, Final project Report, Department of Electrical and Computer Engineering, University of Virginia, USA, 2008

  18. S. Kou, Welding Metallurgy, 2nd ed., Wiley-Interscience, New York, 2003

    Google Scholar 

  19. W. Zhou and K.G. Chew, Effect of Welding on Impact Toughness of Butt-Joints in a Titanium Alloy, Mater. Sci. Eng. A, 2003, 347, p 180–185

    Article  Google Scholar 

  20. A. Kumar and M.C. Gupta, Surface Preparation of Ti-3Al-2.5V Alloy Tubes for Welding using a Fiber Laser, Opt. Lasers Eng., 2009, 47, p 1259–1265

    Article  Google Scholar 

  21. X. Li, J. Xie, and Y. Zhou, Effects of Oxygen Contamination in the Argon Shielding Gas in Laser Welding of Commercially Pure Titanium Thin Sheet, J. Mater. Sci., 2005, 40, p 3437–3443

    Article  Google Scholar 

  22. F. Caiazzo, F. Curcio, G. Daurelio, and F. Memola Capece Minutolo, Ti6Al4V Sheets Lap and Butt Joints Carried Out by CO2 Laser: Mechanical and Morphological Characterization, J. Mater. Process. Tech., 2004, 149, p 546–552

    Article  Google Scholar 

  23. V.A. Joshi, Titanium Alloys, an Atlas of Structures and Fracture Features, CRC Press, Taylor & Francis Group, Boca Raton, 2006

    Book  Google Scholar 

  24. F. Ma, W. Lu, J. Qin, and D. Zhang, Microstructure Evolution of Near-α Titanium Alloys During Thermomechanical Processing, Mater. Sci. Eng. A, 2006, 416, p 59–65

    Article  Google Scholar 

  25. J.L. Barreda, F. Santamari, X. Azpiroz, A.M. Irisarri, and J.M. Varona, Electron Beam Welded High Thickness Ti6Al4V Plates Using Filler Metal of Similar and Different Composition to the Base Plate, Vacuum, 2001, 62, p 143–150

    Article  Google Scholar 

  26. O.M. Ivasishin, Structure and Mechanical Properties of High-Temperature Titanium Alloys After Rapid Heat Treatment, Mater. Sci. Eng. A, 1993, 168, p 23–28

    Article  Google Scholar 

  27. G.E. Dieter, Mechanical Metallurgy, McGraw Hill Book Company, New York, 1986, p 374

    Google Scholar 

  28. R. Nunes, J.H. Adams, M. Ammons, H.S. Avery, R.J. Barnhurst, J.C. Bean et al., ASM Metals Handbook, Nonferrous Alloys and Special-Purpose Materials Properties and Selection, Vol 2, ASM International, Materials Park, 1990

    Google Scholar 

  29. E. Akman, A. Demir, T. Canel, and T. Sinmazcelik, Laser Welding of Ti6Al4V Titanium Alloys, J. Mater. Process. Tech., 2009, 209, p 3705–3713

    Article  Google Scholar 

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Authors and Affiliations

  1. Department of Postgraduate Studies, Aeronautical University of Science and Technology, Sought Mehrabad, Shamshiri St, P.O. Box 13846-63113, Tehran, Iran

    F. Javidrad, H. Farghadani & M. Hedari

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  1. F. Javidrad
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  2. H. Farghadani
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  3. M. Hedari
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Correspondence to F. Javidrad.

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Javidrad, F., Farghadani, H. & Hedari, M. The MPAW of Ti-3Al-2.5V Thin Sheets and Its Effects on Mechanical and Microstructural Properties. J. of Materi Eng and Perform 23, 666–672 (2014). https://doi.org/10.1007/s11665-013-0785-7

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  • DOI: https://doi.org/10.1007/s11665-013-0785-7

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