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Study of grain size variation and saw-tooth spacing during machining of additively manufactured titanium alloy

Published online by Cambridge University Press:  02 June 2015

Brian Davis ,
Frank Liou  and
Yong Huang
Brian Davis
Affiliation:
Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, Florida 32611, USA
Frank Liou
Affiliation:
Department of Mechanical and Aerospace Engineering, Missouri University of Science and Technology, Rolla, Missouri 65409, USA
Yong Huang*
Affiliation:
Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, Florida 32611, USA
*
Address all correspondence to Yong Huang at[email protected]
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Abstract

Additive manufacturing, also known as three-dimensional printing, has provided a promising solution to produce near-net shape components directly from metallic powder. However, their surface roughness still prevents them from immediate use; finish machining is usually required. This study has investigated the grain size variation and saw-tooth/shear-band spacing during the machining of titanium alloy (Ti–6Al–4V) printed using direct metal deposition. Grain refinement was observed within both the printed and substrate regions, and their grain structures retained the basket-weave Widmanstätten and bimodal structures, respectively. The saw-tooth spacing decreased as the build height increased.

Type
Research Letters
Information
MRS Communications , Volume 5 , Issue 2 , June 2015 , pp. 341 - 346
Copyright
Copyright © Materials Research Society 2015 

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References

1.Christensen, A., Kricher, R., and Lippincott, A.: A quantification of electron beam melting (EBM) Ti6Al4V-ELI alloy for orthopedic implant applications. Med. Model. 4, 48–53 (2008).Google Scholar
2.Rawal, S., Brantley, J., and Karabudak, N.: Additive manufacturing for Ti–6Al–4V alloys components for spacecraft applications. IEEE 9, 5–11 (2013).Google Scholar
3.Huang, Y., Leu, M.C., Mazumder, J., and Donmez, A.: Additive manufacturing: current state, future potential, gaps and needs, and recommendations. ASME J. Manuf. Sci. Eng. 137, 1–10 (2015).Google Scholar
4.Murr, L.E., Gaytan, S.M., Medina, F., Martinez, E., Hernandez, D.H., Martinez, L., Lopez, M.I., Wicker, R.B., and Collins, S.: Effect of build parameters and build geometries on residual microstructures and mechanical properties of Ti–6Al–4V components built by electron beam melting (EBM). Mater. Charact., 374–397 (2009).Google Scholar
5.Murr, L.E., Quinones, S.A., Gaytan, S.M., Lopez, M.I., Rodela, A., Martinez, E.Y., Hernandez, D.H., Martinez, E., Medina, F., and Wicker, R.B.: Microstructure and mechanical behavior of Ti–6Al–4V produced by rapid-layer manufacturing for biomedical applications. J. Mech. Behav. Biomed. Mater. 2, 20–32 (2009).Google Scholar
6.Joshi, G., Duan, Y., Neidigh, J., Koike, M., Chahine, G., Kovacevic, R., Okabe, T., and Griggs, J.: Fatigue testing of electron beam-melted Ti–6Al–4V ELI alloy for dental implants. J. Biomed. Mater. Resour. B 101 (B), 124–130 (2012).Google Scholar
7.Cormier, D., Harrysson, O., and West, H.: Characterization of H13 steel produced via electron beam melting. Rapid Prototyping J. 10, 35–41 (2004).Google Scholar
8.Rotella, G., Dillon, O., Umbrello, D., Settineri, L., and Jawahir, I.: The effects of cooling conditions on surface integrity in machining of Ti–6Al–4V alloy. Int. J. Adv. Manuf. Technol. 71, 47–55 (2014).Google Scholar
9.Bao, Y., Newkirk, J., Ruan, J., Sparks, T., and Liou, F.: Effect of mechanical surface treatments on Ti–6Al–4V direct metal deposition parts. J. Manuf. Process. 10, 56–60 (2008).Google Scholar
10.Donachie, M.: Titanium: a technical guide. ASM Int.—Technol. Eng. 2, 22 (1988).Google Scholar
11.Saxena, V.K. and Radhakrishnan, V.M.: Effect of phase morphology on fatigue crack growth behaviour of α–β titanium alloy—A crack closure rationale. Metall. Mater. Trans. A29A, 245–261 (1998).Google Scholar
12.Huang, Y. and Morehead, M.: Study of machining-induced microstructure variations of nanostructured/ultrafine-grained copper using XRD. ASME J. Eng. Mater. Technol. 133, 1–7 (2011).Google Scholar
13.Wu, X., Liang, J., Mei, J., Mitchell, C., Goodwin, P., and Voice, W.: Microstructures of laser-deposited Ti–6Al–4V. Mater. Des. 25, 137–144 (2004).Google Scholar
14.Bhattacharya, S., Dinda, G., Dasgupta, A., and Mazumder, J.: Microstructural evolution of AISI 4340 steel during direct metal deposition process. Mater. Sci. Eng. A 528, 2309–2318 (2011).Google Scholar
15.Fu, T., Fan, Z., Pulugurtha, S., Sparks, T., Ruan, J., Liou, F., and Newkirk, J.: Microstructural characterization of diode laser deposited Ti–6Al–4V. In Proc. Solid Freeform Fabrication Conf. pp. 110–115 (2008).Google Scholar
16.Morehead, M., Huang, Y., and Luo, J.: Chip morphology characterization in machining hardened 52100 steels. Mach. Sci. Technol. 11, 335–354 (2007).CrossRefGoogle Scholar
17.Akcan, S., Shah, S., Moylan, S.P., Chhabra, P.N., Chandrasekar, S., and Yang, H.T.Y.: Formation of white layers in steels in machining and their characteristics. Metall. Mater. Trans. A 33A, 1245–1254 (2002).Google Scholar
18.Arisoy, Y. and Ozel, T.: Prediction of machining induced microstructure in Ti–6Al–4V alloy using 3-D FE-based simulations: effects of tool micro-geometry, coating and cutting conditions. J. Mater. Process. Technol. 220, 1–45 (2014).Google Scholar
19.Shankar, M., Rao, B., Lee, S., Chandrasekar, S., King, A., and Compton, D.: Severe plastic deformation (SPD) of titanium at near-ambient temperature. Acta Mater. 54, 3691–3700 (2006).Google Scholar
20.Meyers, M.A., Subhash, G., Kad, B., and Prasad, L.: Evolution of microstructure and shear-formation in α-hcp titanium. Mech. Mater. 17, 175–193 (1994).Google Scholar
21.Andrade, U., Meyers, M.A., Vecchio, K., and Chokshi, A.: Dynamic recrystallization in high-strain, high-strain rate plastic deformation of copper. Acta Metall. Mater. 9, 3183–3195 (1994).Google Scholar
22.Blenkinsop, P.A.: Critical review: developments in high temperature alloys. In: Titanium: Science and Technology, edited by Lütjering, G., Zwicker, U., and Bunk, W. (Proc. of the Fifth Int. Conf. on Titanium 4, Munich, Germany, 1984), pp. 2323–2338.Google Scholar