| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Length-Scale Phenomena in Mechanical Response
|
| Presentation Title |
Dynamic Strength Performance of Additively Repaired Small-damage Sites in Stainless Steel |
| Author(s) |
Jesse Callanan, David Robert Jones, Saryu Fensin, Daniel Martinez |
| On-Site Speaker (Planned) |
Jesse Callanan |
| Abstract Scope |
The increasing attention on metal additive manufacturing has led to attractive new possibilities in the field of crucial part repair which have the potential to reduce overall cost, reduce downtimes, and expand the range of options for application and material types. In this work, artificially damaged stainless steel samples were repaired with additive manufacturing technology and the mechanical properties were investigated. Various types of damage sites on the order of one cubic millimeter were inflicted on samples to replicate scratches commonly incurred during manufacturing or regular use of metal parts. The damage sites were repaired with pulsed laser deposition additive manufacturing, and the repaired samples were tested at dynamic strain-rates. Post-mortem metallography was used to study the links between repair processing methodology, microstructure, and mechanical performance. Results show that optimal process parameters are critical for realizing effective repairs due to the dependence of damage morphology on the resulting microstructure. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Mechanical Properties, Characterization |