About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing Fatigue and Fracture
|
| Presentation Title |
Promoting Damage Tolerance by Apt Microstructure Design in Additive Manufacturing |
| Author(s) |
Thomas Niendorf, Thomas Wegener |
| On-Site Speaker (Planned) |
Thomas Wegener |
| Abstract Scope |
Additive manufacturing (AM) techniques allow for the establishment of unique microstructures in simple parts and complex components. Exploiting rapid solidification and intrinsic heat treatment, isotropic equiaxed or strongly textured columnar microstructures can be formed. Even microstructurally and functionally graded microstructures can be directly established. Eventually, AM microstructures are fundamentally different as compared to conventionally processed counterparts. As is known, however, AM parts suffer from process induced defects such as pores, eventually leading to inferior properties of many AM processed alloys under cyclic loading conditions. To overcome the challenges related to fatigue, i.e. rapid crack initiation and crack advance, alloy design and microstructure evolution, respectively, are key criteria to be considered. The present paper will summarize promising approaches addressed in recent years for a number of different alloys ranging from Ti-base alloys to high-strength steels. Prevailing challenges are addressed and potential solutions to overcome these will be presented. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, Mechanical Properties |