Issue 53

C. Navarro et alii, Frattura ed Integrità Strutturale, 53 (2020) 337-344; DOI: 10.3221/IGF-ESIS.53.26 343 from the surface. The specimens with shot peening+CASE have the same residual stresses and a smoother surface, improving then fatigue life and having all the initiation points at the interior. Finally, the laser peening specimens have a high surface roughness but a different residual stress distribution which produces the highest fatigue strength. Other parameters that may influence fatigue behavior as the microstructure have not been studied at this point. R EFERENCES [1] Daniewicz, S.R., Shamsaei, N. (2017). An Introduction to the fracture and Fatigue Behavior of Additive Manufactured Parts, International Journal of Fatigue, 94, pp. 167. [2] Daniewicz, S.R., Johnson, A., Thompson, S. M. and Shamsaei, N. (2018). Structural Integrity of Additive Manufactured Parts, in Laser-Based Additive Manufacturing of Metal Parts, L. Bian, N. Shamsaei y J. M. Usher (eds.), CRC Press, pp. 111-140 [3] Gorelik, M. (2017). Additive Manufacturing in the Context of Structural Integrity, International Journal of Fatigue, 94, pp. 168-177. [4] Galarraga, H., Lados, D. A., Dehoff, R. R., Kirka, M. M. and Nandwana, P. (2016). Effects of the microstructure and porosity on properties of Ti-6Al-4VELI alloy fabricated by electron beam melting (EBM), Additive Manufacturing 10, pp. 47–57. [5] Nicoletto, G. (2017). Anisotropic high cycle fatigue behavior of Ti–6Al–4V obtained by powder bed laser fusion, International Journal of Fatigue 94, pp. 255–262. [6] Yadollahi, A and Shamsaei, N. (2017). Additive manufacturing of fatigue resistant materials: Challenges and opportunities, International Journal of Fatigue 98, pp. 14–31. [7] Mercelis, P. and Kruth, J. P. (2006). Residual stresses in selective laser sintering and selective laser melting, Rapid Prototyping Journal, 12, pp. 254-265. [8] Seifi, M., Salem, A., Satko, D., Shaffer, J. and Lewandowski, J. J. (2017) Defect Distribution and Microstructure heterogeneity Effects on Fracture Resistance and Fatigue Behavior of EBM Ti-6Al-4V, International Journal of Fatigue, 94, pp. 263-287. [9] Leuders, S., Thone, M., Riemer, A., Niendorf, T., Troster, T., Richard, H. A. and Maier, H. J. (2013). On the Mechanical Behaviour of Titanium Alloy TiAl6V4 Manufactured by Selective Laser Melting: Fatigue Resistance and Crack Growth Performance, International Journal of Fatigue, 48, pp. 300-307. [10] Gong, H., Rafi, K., Starr, T.and Stucker, B. (2012) Effect of Defects on Fatigue of As Built Ti6Al4V Parts Fabricated by Selective Lasser Melting, Solid Freeform Fabrication Symposium, pp. 499-506. [11] Li, P., Warner, D. H., Fatemi, A. and Phan, N. (2016). Critical assessment of the fatigue performance of additively manufactured Ti–6Al–4V and perspective for future research, International Journal of Fatigue, 85, pp. 130–143. [12] Wycisk, E., Solbach, A., Siddique, S., Herzog, D., Walther, F. and Emmelmann, C. (2014). Effects of defects in Laser Additive Manufactured Ti-6Al-4V on Fatigue Properties, Physics Procedia, 56, pp. 371-378. [13] Shamsaei, N. and Simsiriwong, J. (2017). Fatigue Behaviour of Additively-Manufactured Metallic Parts, Procedia Structural Integrity, 7, pp. 3-10. [14] Greitemeier, D., Palm, F., Syassen, F. and Melz, T. (2019). Fatigue Performance of Additive Manufactured TiAl6V4 Using Electron and Laser Beam Melting, International Journal of Fatigue, 94, pp. 211-217. [15] Atkinson, H.V. and Davies, S. (2000). Fundamental Aspects of Hot Isostatic Pressing: an Overview, Metallurgical and Materials Transactions A, 31A, pp. 2981-3000. [16] Massuo, H., Tanaka, Y., Morokoshi, S., Yagura, H., Uchida, T, Yamamoto, Y and Murakami, Y. (2018). Influence of Defects, surface roughness and HIP on the Fatigue Strength of Ti-6Al-4 Manufactured by Additive Manufacturing, International Journal of Fatigue, 117, pp.163-179. [17] Maamoun, A.H., Elbestawi, M.A. and Veldhuis, S.C. (2018). Influence of Shot Peening on AlSi10Mg Parts Fabricated by Additive Manufacturing, J. Manuf. Mater. Process. 2, 40, DOI:10.3390/jmmp2030040. [18] Lesyk, D.A., Martinez, S., Mordyuk, B.N., Dzhemeinsky, V.V., Lamikiz, A. and Prokopenko, G.I. (2020). Post- processing of the Inconel 718 alloy parts fabricated by selective laser melting: Effects of mechanical surface treatments on surface topography, porosity, hardness and residual stress, Surface and Coatings Technology, 381, 125136. DOI: 10.1016/j.surfcoat.2019.125136. [19] Wycisk, E., Emmelmann, C., Siddique, S. and Walther, F. (2013). High Cycle Fatigue (HCF) Performance of Ti-6Al- 4V Alloy Processed by Selective Laser Melting, Advanced Materials Research, 816-817, pp. 134-139.