Skip to main content

Advertisement

SpringerLink
Log in

Mechanical Properties of INCONEL 718 Parts Manufactured by Shaped Metal Deposition (SMD)

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

Abstract

INCONEL 718 parts have been manufactured by shaped metal deposition (SMD), an additive layer manufacturing technique applying wire-based tungsten inert gas welding. This technique is aimed toward mass customization of parts, omitting time- and scrap-intensive, subtractive fabrication routes. SMD results in dense, “near net-shaped” parts without pores, cracks, or fissures. The microstructure of the SMD parts exhibit large, columnar grains with a fine dendritic microstructure. The interdendritic boundaries are decorated by small Laves phase precipitates and by MC carbides. Tensile tests were performed with different strain rates (10−4, 10−3, and 2 × 10−3 1/s), but no dependency on strength or strain at failure was observed. The ultimate tensile strength was 828 ± 8 MPa, the true plastic strain at failure 28 ± 2%, the micro Vickers hardness 266 ± 21 HV200, and the dynamically measured Young’s module was 154 ± 1 GPa.

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

Access this article

Log in via an institution

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

Instant access to the full article PDF.

Institutional subscriptions

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

Similar content being viewed by others

References

  1. K. Cooper and S. Lambrakos, Thermal Modeling of Direct Digital Melt-Deposition Processes, J. Mater. Eng. Perform., 2011, 20, p 48–56

    Google Scholar 

  2. C. Charles and N. Järvstrat, Development of a Microstructure Model for Metal Deposition of Titanium Alloy Ti-6Al-4V, 11th World Conference on Titanium (Ti-2007) (Kyoto, Japan), 2007, p 1201–1204

  3. C. Charles and N. Järvstrat, Modelling Ti-6Al-4V Microstructure by Evolution Laws Implemented as Finite Element Subroutines: Application to TIG Metal Deposition, 8th International Conference on Trends in Welding Research, (Pine Mountain, GA), 2008

  4. B. Baufeld and O. van der Biest, Mechanical Properties of Ti-6Al-4V Specimens Produced by Shaped Metal Deposition, Sci. Technol. Adv. Mater., 2009, 10, p 10

    Article  Google Scholar 

  5. B. Baufeld, O. van der Biest, and S. Dillien, Texture and Crystal Orientation in Ti-6Al-4V Builds Fabricated by Shaped Metal Deposition, Met. Mater. Trans. A, 2009, 41, p 1917–2010

    Article  Google Scholar 

  6. B. Baufeld, O. van der Biest, and R. Gault, Microstructure of Ti-6Al-4V Specimens Produced by Shaped Metal Deposition, Int. J. Mater. Res., 2009, 100, p 1536–1542

    Article  CAS  Google Scholar 

  7. B. Baufeld, O. van der Biest, and R. Gault, Additive Manufacturing of Ti-6Al-4V Components by Shaped Metal Deposition: Microstructure and Mechanical Properties, Mater. Des., 2010, 31, p S106–S111

    Article  CAS  Google Scholar 

  8. B. Baufeld, O. van der Biest, R. Gault, and K. Ridgway, Manufacturing Ti-6Al-4V Components by Shaped Metal Deposition: Microstructure and Mechanical Properties, TRAM 2009, IOP Conference Series: Materials Science and Engineering (Sheffield, UK), 2010

  9. A.K. Swarnakar, O. van der Biest, and B. Baufeld, Thermal Expansion and Lattice Parameters of Shaped Metal Deposited Ti-6Al-4V, J. Alloy Compd., 2011, 509, p 2723–2728

    Article  CAS  Google Scholar 

  10. C. Leyens and M. Peters, Titanium and Titanium Alloys, Wiley-VCH, Weinheim, 2003

    Book  Google Scholar 

  11. M. Katou, J. Oh, Y. Miyamoto, K. Matsuura, and M. Kudoh, Freeform Fabrication of Titanium Metal and Intermetallic Alloys by Three-Dimensional Micro Welding, Mater. Des., 2007, 28, p 2093–2098

    Article  CAS  Google Scholar 

  12. T. Skiba, B. Baufeld, and O. van der Biest, Microstructure and Mechanical Properties of Stainless Steel Component Manufactured by Shaped Metal Deposition, ISIJ Int., 2009, 49, p 1588–1591

    Article  CAS  Google Scholar 

  13. T. Skiba, B. Baufeld, and O. van der Biest, Shaped Metal Deposition of 300M Steel, Proc. IME B J. Eng. Manufact., 2011, 255, p 831–839

  14. D. Clark, M. Bache, and M. Whittaker, Shaped Metal Deposition of a Nickel Alloy for Aero Engine Applications, J. Mater. Process. Technol., 2008, 203, p 439–448

    Article  CAS  Google Scholar 

  15. R.A.J. Jeniski and R.L. Kennedy, Nickel-base Superalloy Designed for Aerospace, Adv. Mater. Process., 2006, 164, p 19–22

    CAS  Google Scholar 

  16. B. Baufeld and A.K. Swarnakar, Influence of Heat Treatment on the Mechanical Properties of IN718 Parts Built by Shaped Metal Deposition (SMD), in preparation

  17. S.G. Lambrakos and K.P. Cooper, An Algorithm for Inverse Modeling of Layer-by-Layer Deposition Processes, J. Mater. Eng. Perform., 2009, 18, p 221–230

    Article  CAS  Google Scholar 

  18. R.K. Bird and J. Hibberd, Tensile Properties and Microstructure of INCONEL 718 Fabricated with Electron Beam Freeform Fabrication (EBF3), NASA (Hampton, VA), 2009, p 14

  19. J.E. Matz and T.W. Eagar, Carbide Formation in Alloy 718 During Electron-Beam Solid Freeform Fabrication, Metall. Mater. Trans. A, 2002, 33, p 2559–2567

    Article  Google Scholar 

  20. X. Zhao, J. Chen, X. Lin, and W. Huang, Study on Microstructure and Mechanical Properties of Laser Rapid Forming INCONEL 718, Mater. Sci. Eng. A, 2008, 478, p 119–124

    Article  Google Scholar 

  21. P.L. Blackwell, The Mechanical and Microstructural Characteristics of Laser-Deposited IN718, J. Mater. Process. Technol., 2005, 170, p 240–246

    Article  CAS  Google Scholar 

  22. H. Qi, M. Azer, and A. Ritter, Studies of Standard Heat Treatment Effects on Microstructure and Mechanical Properties of Laser Net Shape Manufactured INCONEL 718, Metall. Mater. Trans. A, 2009, 40, p 2410–2422

    Article  Google Scholar 

  23. G. Roebben, B. Bollen, A. Brebels, J. van Humbeeck, and O. van der Biest, Impulse Excitation Apparatus to Measure Resonant Frequencies, Elastic Moduli, and Internal Friction at Room and High Temperature, Rev. Sci. Instrum., 1997, 68, p 4511–4515

    Article  CAS  Google Scholar 

  24. A.J. Brand, K. Karhausen, and R. Kopp, Microstructural Simulation of Nickel Base Alloy INCONEL 718 in Production of Turbine Discs, Mater. Sci. Technol., 1996, 12, p 963–969

    Article  CAS  Google Scholar 

  25. G. Knorovsky, M. Cieslak, T. Headley, A. Romig, and W. Hammetter, INCONEL 718: A Solidification Diagram, Metall. Mater. Trans. A, 1989, 20, p 2149–2158

    Article  Google Scholar 

  26. M. Fukuhara and A. Sanpei, Elastic Moduli and Internal Frictions of INCONEL 718 and Ti-6Al-4V as a Function of Temperature, J. Mater. Sci. Lett., 1993, 12, p 1122–1124

    Article  CAS  Google Scholar 

Download references

Acknowledgments

The research has been performed as part of the RAPOLAC STREP project under contract number 030953 of the Sixth Framework Programme of the European Commission (http://www.RAPOLAC.eu), which is gratefully acknowledged. The parts have been built at AMRC, Sheffield, the United Kingdom in association with the team of Dr. Rosemary Gault, and the experimental evaluation has been performed at the Katholieke Universiteit Leuven, Belgium, in association with tthe team of Prof. Omer van der Biest. The supports provided by them and their staff are highly acknowledged.

Author information

Authors and Affiliations

  1. Nuclear Advanced Manufacturing Research Centre, University of Sheffield, Brunel Way, Rotherham, S60 5WG, UK

    Bernd Baufeld

Authors
  1. Bernd Baufeld
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Bernd Baufeld.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Baufeld, B. Mechanical Properties of INCONEL 718 Parts Manufactured by Shaped Metal Deposition (SMD). J. of Materi Eng and Perform 21, 1416–1421 (2012). https://doi.org/10.1007/s11665-011-0009-y

Download citation

  • Received:

  • Revised:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11665-011-0009-y

Keywords

Search

Navigation