Deformation Behavior of Single Particle Cold Spray Ti-6Al-4V Splats

Abstract:

The rapid development of cold spray technology has made it a viable option to repair and remanufacture damaged components as well as to create novel materials for biomedical applications. One of the most influential parameters of this distinctive process is the deposition velocity, which ultimately controls the degree of material deformation and material adhesion. Although the majority of materials can be successfully deposited at relative low deposition velocity (<700m/s), this is not representative of Ti alloys which have high yield strength. The amount of deformation and resultant properties of the coating are related to the velocity, temperature, and tensile strength of the particles. The ability to predict the deformation and resultant properties helps in developing process parameters and tailoring coatings to get the desired properties. In the current study, the particle deformation behavior and bonding with the substrate was investigated over a range of impact conditions. The effects of deposition velocity, gas temperature, gas pressure and nozzle stand-off distance were studied using cold sprayed splats of spherical Ti-6Al-4V powder deposited on to 316 SS substrate utilizing helium as a carrier gas. Finite element modeling of the impacted particles was conducted using Johnson-Cook high-strain-rate properties in a Lagrangian analysis to predict the overall deformation and estimated stress state of the impacted particles. Particle temperature due to impact was also predicted. Overall predictions were in good agreement with experimental results. Optical microscopy, scanning electron microscopy (SEM) and focused ion beam (FIB) were used to identify three distinct regions within the impact morphologies; these include the initial impact region, the jetting region, and the upper splat region.

• Periodical: Materials Science Forum (Volume 1016)
• Pages: 1325-1330
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.1016.1325
• Online since: January 2021
• Authors: Mala M. Sharma*, Kiran G. Judd, Jeremy M. Schreiber, Timothy J. Eden
• Keywords: Cold Spray, Finite Element Analysis, Hardness, Nanoindentation, Ti-6Al-4V

References

[1] T. Schmidt, F. Gaertner, and H. Kreye, New Developments in Cold Spray Based on Higher Gas and Particle Temperatures, J. Therm. Spray Technol., 2006, 15(4), pp.488-494.

DOI: 10.1361/105996306x147144

[2] T. Schmidt, F. Gartner, H. Assadi, and H. Kreye, Development of a Generalized Parameter Window for Cold Spray Deposition, Acta Mater., 2006, 54(3), pp.729-742.

DOI: 10.1016/j.actamat.2005.10.005

[3] G. Bae, S. Kumar, S. Yoon, K. Kang, H. Na, H.J. Kim, and C. Lee, Bonding Features and Associated Mechanisms in Kinetic Sprayed Titanium Coatings, Acta Mater., 2009, 57(19), p.5654.

DOI: 10.1016/j.actamat.2009.07.061

[4] G. Bae, Y. Xiong, S. Kumar, K. Kang, and C. Lee, General Aspects of Interface Bonding in Kinetic Sprayed Coatings, Acta Mater., 2008, 56(17), pp.4858-4868.

DOI: 10.1016/j.actamat.2008.06.003

[5] S. Guetta, M. Berger, F. Borit, V. Guipont, M. Jeandin, M. Boustie, Y. Ichikawa, K. Sakaguchi, and K. Ogawa, Influence of Particle Velocity on Adhesion of Cold-Sprayed Splats, J. Therm. Spray Technol., 2009, 18(3), pp.331-342.

DOI: 10.1007/s11666-009-9327-0

[6] D. Goldbaum, R.R. Chromik, S. Yue, E. Irissou, and J.-G. Legoux, Mechanical Property Mapping of Cold Spray Ti Splats, J. Therm. Spray Technol., 2011, 20(3), pp.486-496.

DOI: 10.1007/s11666-010-9546-4

[7] R.R. Chromik, D. Goldbaum, J.M. Shockley, S. Yue, E. Irissou, J.-G. Legoux, and N.X. Randall, Modified Ball Bond Shear Test for Determination of Adhesion Strength of Cold Spray Splats, Surf. Coat. Technol., 2010, 205(5), pp.1409-1414.

DOI: 10.1016/j.surfcoat.2010.07.037

[8] J. Vlcek, H. Huber, H. Voggenreiter, and E. Lugscheider,'Melting Upon Particle Impact in the Cold Spray Process,',presented at Materials Week 2002, International Congress on Advanced Materials, (Munich,Germany), Deutsche Gesellschaff fur Materialkunde (DGM), Sept (2002).

[9] S. Guetta, M.H. Berger, F. Borit, V. Guipont, M. Jeandin, M. Boustie, Y. Ichikawa, K. Sakaguchi, K. Ogawa, Influence of particle velocity on adhesion of coldsprayed splats, J. Therm. Spray Technol. 18 (2009) 331e342, https://doi.org/10.1007/s11666-009-9327-0.

DOI: 10.1007/s11666-009-9327-0

[10] M. Grujicic, C.L. Zhao, W.S. DeRosset, and D. Helfritch, Adiabatic Shear Instability Based Mechanism for Particles/Substrate Bonding in the Cold-Gas Dynamic-Spray Process, Mater. Des., 2004, 25(8), pp.681-688.

DOI: 10.1016/j.matdes.2004.03.008

[11] H. Assadi, F. Ga¨ rtner, T. Stoltenhoff, and H. Kreye, Bonding Mechanism in Cold Gas Spraying, Acta Mater., 2003, 51(15), pp.4379-4394.

DOI: 10.1016/s1359-6454(03)00274-x

[12] M. Saleh, V. Luzin, K. Spencer, Analysis of the residual stress and bonding mechanism in the cold spray technique using experimental and numerical methods, Surf. Coating. Technol. 252 (2014) 15e28, https://doi.org/10.1016/j.surfcoat.2014.04.059.

DOI: 10.1016/j.surfcoat.2014.04.059

[13] L. Zhu, T.-C. Jen, Y.-T. Pan, H.-S. Chen, Particle bonding mechanism in cold gas dynamic spray: a three-dimensional approach, J. Therm. Spray Technol. 26 (2017) 1859e1873, https://doi.org/10.1007/s11666-017-0652-4.

DOI: 10.1007/s11666-017-0652-4

[14] W. Xie, A. Alizadeh-Dehkharghani, Q. Chen, V.K. Champagne, X. Wang, A.T. Nardi, S. Kooi, S. Müftü, J.-H. Lee, Dynamics and extreme plasticity of metallic microparticles in supersonic collisions, Sci. Rep. 7 (2017), https://doi.org/10.1038/s41598-017-05104-7.

DOI: 10.1038/s41598-017-05104-7

[15] F. Meng, S. Yue, J. Song, Quantitative prediction of critical velocity and deposition efficiency in cold-spray: a finite-element study, Scripta Mater.(2015), https://doi.org/10.1016/j.scriptamat. 2015.05.026.

DOI: 10.1016/j.scriptamat.2015.05.026

[16] P.C. King, G. Bae, S.H. Zahiri, M. Jahedi, C. Lee, An experimental and finite element study of cold spray copper impact onto two aluminum substrates, J. Therm. Spray Technol. 19 (2009) 620-634, https://doi.org/10.1007/s11666-009-9454-7.

DOI: 10.1007/s11666-009-9454-7

[17] M. Hassani-Gangaraj, D. Veysset, V. Champagne, K. Nelson, C. Schuh, Adiabatic shear instability is not necessary for adhesion in cold spray, Acta Materialia 158 (2018) 430-439.

DOI: 10.1016/j.actamat.2018.07.065

[18] K. Binder, J. Gottschalk, M. Kollenda, F. Gärtner, and T. Klassen, Influence of Impact Angle and Gas Temperature on Mechanical Properties of Titanium Cold Spray Deposits, J. Therm. Spray Technol., 2011, 20(1-2), pp.234-242.

DOI: 10.1007/s11666-010-9557-1

[19] H. Assadi, T. Schmidt, H. Richter, J.-O. Kliemann, K. Binder, F. Gärtner, T. Klassen, and H. Kreye, On Parameter Selection in Cold Spraying, J. Therm. Spray Technol., 2011, 20(6), pp.1161-76.

DOI: 10.1007/s11666-011-9662-9