Hostname: page-component-cd9895bd7-hc48f Total loading time: 0 Render date: 2024-12-28T16:25:14.640Z Has data issue: false hasContentIssue false
  • English
  • Français

Tensile properties of laser additive manufactured Inconel 718 using filler wire

Published online by Cambridge University Press:  19 August 2014

Yi-Nan Zhang ,
Xinjin Cao ,
Priti Wanjara  and
Mamoun Medraj
Yi-Nan Zhang
Affiliation:
National Research Council Canada – Aerospace, Montreal, Quebec H3T 2B2, Canada Department of Mechanical Engineering, Concordia University, Montreal, Quebec H3G 1M8, Canada
Xinjin Cao*
Affiliation:
National Research Council Canada – Aerospace, Montreal, Quebec H3T 2B2, Canada
Priti Wanjara
Affiliation:
National Research Council Canada – Aerospace, Montreal, Quebec H3T 2B2, Canada
Mamoun Medraj
Affiliation:
Department of Mechanical Engineering, Concordia University, Montreal, Quebec H3G 1M8, Canada
*
a)Address all correspondence to this author. e-mail: Xinjin.Cao@cnrc-nrc.gc.ca
Get access

Abstract

A 5 kW continuous wave fiber laser welding system was used to deposit INCONEL® alloy 718 (IN718) on service-exposed IN718 parent metal (PM) substrates using filler wire addition. The microstructure of the deposits was characterized in the fully heat treated condition. The service-exposed IN718 PM and the direct laser deposited (DLD) specimens were then evaluated through room temperature tensile testing. The yield and tensile strengths were well above the minimum values, as defined in the aerospace specifications AMS 5596K and 5663M. However, the ductility at room temperature of the DLD and DLD-PM samples was slightly lower than that specified in AMS 5596K and 5663M. The tensile fracture surfaces of the service-exposed IN718 PM, DLD, and DLD-PM specimens were analyzed using scanning electron microscopy (SEM), and the tensile failure mechanisms are discussed in detail, particularly for the important roles of the secondary particles (MC carbides) and intermetallics (platelet Ni3Nb-δ and Laves phases).

Keywords

fracturelaserSEM
Type
Articles
Information
Journal of Materials Research , Volume 29 , Issue 17: Focus Issue: The Materials Science of Additive Manufacturing , 14 September 2014 , pp. 2006 - 2020
Copyright
Copyright © Materials Research Society 2014 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Qi, H., Azer, M., and Ritter, A.: Studies of standard heat treatment effects on microstructure and mechanical properties of laser net shape manufactured Inconel 718. Metall. Mater. Trans. A 40A, 2010 (2009).Google Scholar
Ng, G.K.L., Bi, G.J., and Zheng, H.Y.: An investigation on porosity in laser metal deposition. The International Congress on Applications of Lasers & Electro-Optics (ICALEO) 2008 Proceedings, Paper #105, Temecula, California, October 2008; p. 23. Google Scholar
Dupont, J.N., Lippold, J.C., and Kiser, S.D.: Welding Metallurgy and Weldability of Nickel-base Alloys (John Wiley & Sons, Inc., Hoboken, NJ, 2009).Google Scholar
Andersson, J. and Sjoberg, G.P.: Repair welding of wrought superalloys: Alloy 718, Allvac 718plus and Waspaloy. Sci. Technol. Weld. Joining 17, 49 (2012).Google Scholar
Baufeld, B.: Mechanical properties of Inconel 718 parts manufactured by shaped metal deposition (SMD). J. Mater. Eng. Perform. 21, 1416 (2011).Google Scholar
Nussein, N.I.S., Segal, J., McCartney, D.G., and Pashby, I.R.: Microstructure formation in Waspaloy multilayer builds following direct metal deposition with laser and wire. Mater. Sci. Eng., A 497, 260 (2008).Google Scholar
Ion, J.C.: Laser Processing of Engineering Materials; Principles, Procedure and Industrial Application (Elsevier Butterworth-Heinemann, Oxford, UK, 2005).Google Scholar
Zhao, X., Chen, J., Lin, X., and Huang, W.: Study on microstructure and mechanical properties of laser rapid forming Inconel 718. Mater. Sci. Eng., A 478, 119 (2008).Google Scholar
Blackwell, P.L.: The mechanical and microstructural characteristics of laser-deposited IN718. J. Mater. Process. Technol. 170, 240 (2005).Google Scholar
Ram, G.D.J., Reddy, A.V., Rao, K.P., Reddy, G.M., and Sundar, J.K.S.: Microstructure and tensile properties of Inconel 718 pulsed Nd-YAG laser welds. J. Mater. Process. Technol. 167, 73 (2005).Google Scholar
Cao, X., Rivaux, B., Jahazi, M., Cuddy, J., and Birur, A.: Effect of pre- and post-weld heat treatment on metallurgical and tensile properties of Inconel 718 alloy butt joints welded using 4 kW Nd:YAG laser. J. Mater. Sci. 44, 4557 (2009).Google Scholar
Hong, J.K., Park, J.H., Park, N.K., Eom, I.S., Kim, M.B., and Kang, C.Y.: Microstructures and mechanical properties of IN718 welds by CO2 laser welding. J. Mater. Process. Technol. 201, 515 (2008).CrossRefGoogle Scholar
Yang, G.X., Xu, Y.F., Jiang, L., and Liang, S.H.: High temperature tensile properties and fracture behavior of cast nickel-base K445 superalloy. Prog. Nat. Sci. 21, 418–425 (2011).Google Scholar
Donachie, M.J. and Donachie, S.J.: Superalloys: A Technical Guide (ASM international, The Materials Information Society, Materials Park, OH, 2002).Google Scholar
Loria, E.A.: Proceedings of the International Symposium on the Metallurgy and Applications of Superalloy 718, Pittsburgh, PA, TMS, Warrendale, PA, 2005, p. 135.Google Scholar
Rao, G.A., Kumar, M., Srinivas, M., and Sarma, D.S.: Effect of standard heat treatment on the microstructure and mechanical properties of hot isostatically pressed superalloy Inconel 718. Mater. Sci. Eng., A 335, 114 (2003).Google Scholar
Biswas, S., Reddy, G.M., Mohandas, T., and Murthy, C.V.S.: Residual stresses in Inconel 718 electron beam welds. J. Mater. Sci. 39, 6813 (2004).Google Scholar
Chen, H.C., Pinkerton, A., and Li, L.: Fibre laser welding of dissimilar alloys of Ti-6Al-4V and Inconel 718 for aerospace applications. Int. J. Adv. Manuf. Technol. 52, 977 (2011).Google Scholar
Zhang, Y.N., Cao, X., Wanjara, P., and Medraj, M.: Oxide films in laser additive manufactured Inconel 718. Acta Mater. 61, 6562 (2013).Google Scholar
Zhang, Y.N., Cao, X., and Wanjara, P.: Fiber laser deposition of Inconel 718 using filler wire. Int. J. Adv. Manuf. Technol. 69, 2569 (2013).Google Scholar
Hooijmans, J.W., Lippold, J.C., and Lin, W.: Effect of multiple postweld heat treatment on the weldability of alloy 718. Superalloys 718, 625, 706 and Various Derivatives, edited by Loria, E.A.. TMS, Warrendale, PA, 1997.Google Scholar
Ram, G.D.J., Reddy, A.V., Rao, K.P., and Reddy, G.M.: Microstructure and mechanical properties of Inconel 718 electron beam welds. Mater. Sci. Technol. 21, 1132 (2005).Google Scholar
Radavich, J.F.: The physical metallurgy of cast and wrought alloy 718. Conference Proceedings on Superalloy 718 – Metallurgy and Applications, edited by Loria, E.A.. TMS, Warrendale, PA, 1989; p. 229.Google Scholar
Xu, F.J., Lv, Y.H., Liu, Y.X., Shu, F.Y., He, P., and Xu, B.S.: Microstructural evolution and mechanical properties of Inconel 625 alloy during pulsed plasma arc deposition process. Mater. Sci. Technol. 29, 480 (2013).Google Scholar
Zhang, Y.N., Cao, X., Wanjara, P., and Medraj, M.: Fatigue properties of laser additive manufactured Inconel 718 using powder feed. (2014, in preparation).Google Scholar
Cao, X. and Campbell, J.: The nucleation of Fe-rich phases on oxide films in Al-11.5Si-0.4Mg cast alloys. Metall. Mater. Trans. A 34A, 1409 (2003).Google Scholar
Cao, X. and Campbell, J.: Solidification characteristics of Fe-rich phases in cast Al-11.5Si-0.4Mg alloy. Metall. Mater. Trans. A 35, 1425 (2004).Google Scholar
Liu, K., Cao, X., and Chen, X-G.: Formation and phase selection of iron-rich intermetallics in Al-4.6Cu-0.3Mg-0.5Fe cast alloys. Metall. Mater. Trans. A 44, 682 (2013).Google Scholar