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

Citation Link: https://doi.org/10.15480/882.2766
Publikationstyp
Journal Article
Date Issued
2014
Sprache
English
Author(s)
Wycisk, Eric  
Solbach, Andreas  
Siddique, Shafaqat  
Herzog, Dirk  orcid-logo
Walther, Frank  
Emmelmann, Claus  orcid-logo
Institut
Laser- und Anlagensystemtechnik G-2  
TORE-DOI
10.15480/882.2766
TORE-URI
http://hdl.handle.net/11420/6142
Journal
Physics procedia  
Volume
56
Start Page
371
End Page
378
Citation
Physics Procedia C (56): 371-378 (2014-01-01)
Contribution to Conference
8th International Conference on Photonic Technologies LANE 2014  
Publisher DOI
10.1016/j.phpro.2014.08.120
Scopus ID
2-s2.0-84923128859
Publisher
Elsevier
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.
Subjects
Crack propagation
El Haddad and Topper
Fatigue properties
High cycle fatigue
Kitagawa-Takahashi diagram
Laser Additive Manufacturing
Titanium alloy Ti-6Al-4V
DDC Class
620: Ingenieurwissenschaften
More Funding Information
German Federal Ministry of Education and Research (BMBF)
Lizenz
https://creativecommons.org/licenses/by-nc-nd/3.0/
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