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Wycisk, Eric [Verfasser:in]; Solbach, Andreas [Verfasser:in]; Siddique, Shafaqat [Verfasser:in]; Herzog, Dirk [Verfasser:in]; Walther, Frank [Verfasser:in]; Emmelmann, Claus [Verfasser:in] ; Technische Universität Hamburg-Harburg, Technische Universität Hamburg-Harburg Institut für Laser- und Anlagensystemtechnik

Effects of defects in laser additive manufactured Ti-6Al-4V on fatigue properties

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  • Medientyp: E-Artikel
  • Titel: Effects of defects in laser additive manufactured Ti-6Al-4V on fatigue properties
  • Beteiligte: Wycisk, Eric [Verfasser:in]; Solbach, Andreas [Verfasser:in]; Siddique, Shafaqat [Verfasser:in]; Herzog, Dirk [Verfasser:in]; Walther, Frank [Verfasser:in]; Emmelmann, Claus [Verfasser:in]
  • Körperschaft: Technische Universität Hamburg-Harburg ; Technische Universität Hamburg-Harburg, Institut für Laser- und Anlagensystemtechnik
  • Erschienen: 2014
  • Erschienen in: Physics procedia ; 56(2014), Seite 371-378
  • Sprache: Englisch
  • DOI: 10.1016/j.phpro.2014.08.120; 10.15480/882.2766
  • Identifikator:
  • Schlagwörter: Crack propagation ; El Haddad and Topper ; Fatigue properties ; High cycle fatigue ; Kitagawa-Takahashi diagram ; Laser Additive Manufacturing ; Titanium alloy Ti-6Al-4V
  • Entstehung:
  • Anmerkungen: Sonstige Körperschaft: Technische Universität Hamburg-Harburg, Institut für Laser- und Anlagensystemtechnik
  • Beschreibung: © 2014 The Authors. Published by Elsevier B.V. Laser Additive Manufacturing (LAM) enables economical production of complex lightweight structures as well as patient individual implants. Due to these possibilities the additive manufacturing technology gains increasing importance in the aircraft and the medical industry. Yet these industries obtain high quality standards and demand predictability of material properties for static and dynamic load cases. However, especially fatigue and crack propagation properties are not sufficiently determined. Therefore this paper presents an analysis and simulation of crack propagation behavior considering Laser Additive Manufacturing specific defects, such as porosity and surface roughness. For the mechanical characterization of laser additive manufactured titanium alloy Ti-6Al-4V, crack propagation rates are experimentally determined and used for an analytical modeling and simulation of fatigue. Using experimental results from HCF tests and simulated data, the fatigue and crack resistance performance is analyzed considering material specific defects and surface roughness. The accumulated results enable the reliable prediction of the defects influence on fatigue life of laser additive manufactured titanium components.
  • Zugangsstatus: Freier Zugang