| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing Fatigue and Fracture IV: Toward Confident Use in Critical Applications
|
| Presentation Title |
Microstructure-based Fatigue Performance Analysis and Prediction of Additively Manufactured 316L Stainless Steel Subjected to Different Heat Treatments |
| Author(s) |
Chola Elangeswaran, Antonio Cutolo, Charlotte de Formanoir, Gokula Krishna Muralidharan, Brecht Van Hooreweder |
| On-Site Speaker (Planned) |
Chola Elangeswaran |
| Abstract Scope |
A microstructural model for predicting fatigue behaviour is adapted for 316L stainless steel manufactured by laser powder bed fusion. An analytical model for dislocation accumulation and damage evolution during cyclic loading is employed. Experimental validation is performed with vertically built miniaturised fatigue samples in four microstructural conditions: as-built, stress relieved, fully annealed and hot isostatic pressed. The samples are fatigue tested at fully reversed axial tension-compression loads. Curve fitting constants are extracted from known conditions and extrapolated for predicted material conditions. The results show that the prediction reasonably agrees with the experimental values and offers scope of expanding the model to account for other surface and orientation-based influencing factors. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |