Additive manufacturing (AM) opens new possibilities for component design in complex geometries far beyond conventional manufacturing methods, leading to parts with vastly reduced weight and optimized function. In order to reach the full potential of additive manufacturing, we need to understand the relationship between microstructure and mechanical properties of additively manufactured structures. To use this manufacturing technology also for safety relevant structural components, it is indispensable to investigate fatigue properties of these materials.

Therefore, in this research project, we are examining the fatigue behavior of additively manufactured structures made of AISI 316L by means of the short time procedures PhyBaL_LIT and PhyBaL_CHT. We are focusing on the influence of variation of manufacturing processes on the fatigue properties and on the investigation of the fatigue damage mechanisms.

B. Blinn, C. Gläßner, M. Klein, M. Smaga, J. C. Aurich, T. Beck:
An Investigation of the Microstructure and Fatigue Behavior of Additively Manufactured AISI 316L Stainless Steel with Regard to the Influence of Heat Treatment,
Metals 8 (4), 2018, 220
www.mdpi.com/2075-4701/8/4/220

B. Blinn, D. Görzen, M. Klein, D. Eifler, T. Beck:
PhyBaLCHT – Influence of indentation force on the results of cyclic hardness tests and investigations of comparability to uniaxial fatigue loading,
International Journal of Fatigue 119, 2019, pp. 78-88
doi.org/10.1016/j.ijfatigue.2018.09.025

B. Blinn, M. Ley, N. Buschhorn, R. Teutsch, T. Beck:
Investigation of the anisotropic fatigue behavior of additively manufactured structures made of AISI 316L with short-time procedures PhyBaLLIT and PhyBaLCHT,
International Journal of Fatigue 124, 2019, pp. 389-399
doi.org/10.1016/j.ijfatigue.2019.03.022

B. Blinn, F. Krebs, M. Ley, R. Teutsch, T. Beck:
Determination of the influence of a stress-relief heat treatment and additively manufactured surface on the fatigue behavior of selectively laser melted AISI 316L by using efficient shorttime procedures,
International Journal of Fatigue 131, 2020, 105301
doi.org/10.1016/j.ijfatigue.2019.105301

B. Blinn, F. Krebs, M. Ley, C. Gläßner, M. Smaga, J. C. Aurich, R. Teutsch, T. Beck:
Influence of the Chemical Composition of the Used Powder on the Fatigue Behavior of Additively Manufactured Materials,
Metals 9(12), 2019, 1285
doi.org/10.3390/met9121285

B. Blinn, P. Lion, O. Jordan, S. Meiniger, S. Mischliwski, C. Tepper, C. Gläßner, J. C. Aurich, M. Weigold, T. Beck:
Process-influenced fatigue behavior of AISI 316L manufactured by powder- and wire-based Laser Direct Energy Deposition,
Materials Science and Engineering: A,
Volume 818, 2021, 141383
doi.org/10.1016/j.msea.2021.141383

B. Blinn, S. Greco, M. Smaga, M. Zimmernmann, H. Hotz, D. Müller, J. Hartig, B. Kirsch, J. C. Aurich, T. Beck:
Influence of microstructural defects and the surface topography on the fatigue behavior of “additively-subtractively” manufactured specimens made of AISI 316L
Materials Science & Engineering Technology,
Volume 52, Issue 5, 2021, pp. 561-577
doi.org/10.1002/mawe.202000266