A5017932824- Additive Manufacturing Materials and Processes
- Additive Manufacturing and 3D Printing Technologies
- Titanium Alloys Microstructure and Properties
- Welding Techniques and Residual Stresses
- High Entropy Alloys Studies
- Magnesium Alloys: Properties and Applications
- Intermetallics and Advanced Alloy Properties
- Orthopaedic implants and arthroplasty
- Bone Tissue Engineering Materials
TU Dortmund University
2018-2022
The laser-based fusion of metallic powder allows construction components with arbitrary complexity. In selective laser melting, the rapid cooling melt pools in direction component building causes significant anisotropy microstructure and properties. objective this work is to investigate influence build on mechanical properties melted AlSi10Mg. alloy comprehensively used automotive industry has been one most frequently investigated Al alloys additive manufacturing. Using specimens produced...
Powder bed fusion (PBF) processes enable the manufacturing of complex components in a time- and cost-efficient manner. Especially lattice structures are currently focused since they show varying mechanical properties, including different deformation damage behaviors, which can be used to locally tailor behavior. However, present process-structure-property relationships highly have understood detail order an implementation PBF manufactured safety-relevant applications. Within work Ti6Al4V...
Laser powder bed fusion (L-PBF) of metals enables the manufacturing highly complex geometries which opens new application fields in medical sector, especially with regard to personalized implants. In comparison conventional techniques, L-PBF causes different microstructures, and thus, challenges arise. The main objective this work is investigate influence parameters process on microstructure, process-induced porosity, as well corrosion fatigue properties magnesium alloy WE43 a reference...
By means of electron beam powder bed fusion (E-PBF), highly complex lightweight structures can be manufactured within short process times. Due to the increasing complexity producible components and entangled interplay damage mechanisms, common bulk material properties such as ultimate tensile or fatigue strength are not sufficient guarantee safe reliable use in demanding applications. Within this work, tolerance E-PBF-manufactured Ni-based alloy Inconel 718 (IN 718) strut geometries under...
Abstract Additive manufacturing techniques enable the fabrication of new lightweight components with tailored mechanical properties. Considering current application fields, are often over-dimensioned since a lack data regarding properties under compression or tensile loading at high strain rates is present. In this work, influence various on electron beam powder bed fusion Ti6Al4V lattice structures was investigated. order to capture damage mechanisms that occurred, single unit cell plane...
Abstract Additively manufactured γ-titanium aluminide has a high specific strength and temperature resistance. This opens new possibilities for future lightweight constructions aerospace applications. The objective of this work was to characterize additively Ti–48Al–2Cr–2Nb alloy specimens, which were successfully by electron beam powder bed fusion. For microstructural characterization, the as-built state investigated with light scanning microscopy. In backscatter diffraction analysis, size...
Abstract By means of additive manufacturing, the production components with nearly unlimited geometrical design complexity is feasible. Especially, powder bed fusion techniques such as electron beam (PBF-EB) are currently focused. However, equal material properties mandatory to be able transfer this technique a wide scope industrial applications. Within work, mechanical PBF-EB-manufactured Ti6Al4V alloy investigated function position on building platform. It can stated that as-built surface...
The objective of this work was to verify a relatively new fusion-based additive manufacturing (AM) process produce high-temperature aerospace material. nickel-based superalloy Inconel 625 (IN625) manufactured by an arc-based AM technique. Regarding microstructure, typical columnar-oriented dendritic structure along the building direction present, and epitaxial growth visible. mechanical behavior characterized combination quasi-static tensile compression tests, whereas IN625 showed high yield...
Abstract Implants of different material classes have been used for the reconstruction damaged hard and soft tissue decades. The aim is to increase subsequently maintain patient's quality life through implantation. In service, most implants are subjected cyclic loading, which must be taken particularly into consideration, since fatigue strength far below yield tensile strength. Inaccurate estimation structural due consideration or leads a miscalculation implant's lifetime, therefore, its...
Electron beam powder bed fusion (E-PBF) enables the fabrication of new and complex light-weight structures within short process times. However, increasing complexity producible components leads to damage mechanisms interactions which can not sufficiently be represented by typical material properties such as ultimate tensile strength or fatigue strength. In current research, tolerance was investigated a single unit cell plane for stretch-dominated lattice type under uniaxial cyclic loading...
The laser powder bed fusion of metals (PBF-LB/M) is one the most promising techniques to realize lightweight optimized parts and structures. Possible design elements are internal cooling channels or topology geometries. However, not only does process suffer instabilities causing pores lack-of-fusion defects but also a low surface quality. A further knowledge about these their influence on mechanical behavior needed use additively manufactured in structural relevant applications. In this...