5 Fatigue Assessment of Porosity in Electron Beam Melted Ti-6Al-4V 43 Acknowledgments The authors would like to thank the Turbine Engine Fatigue Facility of the Air Force Research Laboratory at Wright-Patterson Air Force Base for equipment use, assistance, and technical support of this research effort. The authors would also like to acknowledge and thank the Center for Design and Manufacturing Excellence at the Ohio State University for supplying and creating the material needed with their equipment. References 1. Tofail, S.A., Koumoulos, E.P., Bandyopadhyay, A., Bose, L., O’Donoghue, S., Charitidis, C.: Additive manufacturing: scientific and technological challenges, market uptake and opportunities. Mater. Today 21(1), 22–37 (2018) 2. Findlay, S., Harrison, N.: Why aircraft fail. Mater. Today 5(11), 18–25 (2002) 3. Hrabe, N., Gnäupel-Herold, T., Quinn, T.: Fatigue properties of a titanium alloy (ti-6al-4v) fabricated via electron beam melting (ebm): effects of internal defects and residual stress. Int. J. Fatigue 94, 202–210 (2017) 4. Tammas-Williams, S., Withers, P., Todd, I., Prangnell, P.: The influence of porosity on fatigue crack initiation in additively manufactured titanium components. Sci. Rep. 7(1), 7308 (2017) 5. Biswal, R., Syed, A.K., Zhang, X.: Assessment of the effect of isolated porosity defects on the fatigue performance of additive manufactured titanium alloy. Addit. Manuf. 23, 433–442 (2018) 6. Chern, A.H., Nandwana, P., Yuan, T., Kirka, M.M., Dehoff, R.R., Liaw, P.K., Duty, C.E.: A review on the fatigue behavior of ti-6al-4v fabricated by electron beam melting additive manufacturing. Int. J. Fatigue 119, 173–184 (2019)
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