Options
Dissimilar titanium and titanium aluminide joints manufactured by laser beam welding and laser additive manufacturing
Citation Link: https://doi.org/10.15480/882.3228
Publikationstyp
Doctoral Thesis
Date Issued
2021
Sprache
English
Author(s)
Advisor
Referee
Title Granting Institution
Technische Universität Hamburg
Place of Title Granting Institution
Hamburg
Examination Date
2020-10-12
TORE-DOI
TORE-URI
Citation
Technische Universität Hamburg (2021)
Motivated by the increasing demands for lightweight constructions, the aim is to obtain crack-free dissimilar Ti- and γ-TiAl-Ti-alloy joints by focusing on laser beam welding as the joining method. This was successfully achieved by preheating and the crack formation could be correlated to the microstructure-phase evolution. Through tensile tests the influence of the dissimilar interface on the fracture position and tensile properties could be revealed. Extending the thesis, the gained knowledge regarding the microstructure-phase evolution at the interface could be successfully transferred to the laser metal dep-ositions. Besides, the limited transferability concerning the crack formation was demonstrated. Hence, the fundamentals for crack-free γ-TiAl-Ti-alloy joints and depositions were established.
Subjects
laser beam welding
additive manufacturing
titanium alloy
titanium aluminides
dissimilar joints
microstructural analysis
mechanical testing
DDC Class
620: Ingenieurwissenschaften
Loading...
Name
PhD-Thesis-Burkhardt.pdf
Size
12.17 MB
Format
Adobe PDF