Characterization of micro/macrostructure of laser cladded inconel 718 with increased deposition rates as related to the mechanical properties

Publikationstyp
Conference Paper
Publikationsdatum
2011-10
Sprache
English
Author
Witzel, Johannes 
Stannard, Salay 
Gasser, Andres 
Kelbassa, Ingomar 
TORE-URI
http://hdl.handle.net/11420/12488
Start Page
560
End Page
566
Citation
30th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2011: 560-566 (2011)
Contribution to Conference
30th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2011 
Publisher DOI
10.2351/1.5062293
Scopus ID
2-s2.0-82655170937
Publisher
Laser Inst. of America
Currently, high value Class 1 jet engine components such as BLISKs (Blade Integrated DiSKs) are manufactured by time and cost-prohibitive conventional techniques, such as five-axis milling, linear friction welding and electro chemical machining. This project within the Fraunhofer Cluster of Innovation "TurPro" qualifies the LMD process as a new "green manufacturing" method for nickel and titanium alloy-based BLISKs. Quality assurance and predictable material properties remain a major concern when aiming for a process certification of additive manufacturing of BLISK blades. This paper presents the results of a microstructure investigation of laser cladded IN 718 using increased deposition rates of up to 7000 mm3/min. Presented are the ternary relations between process parameters, dendrite arm spacing and resulting mechanical properties with respect to niobium segregation.
DDC Class
530: Physik