Powder-based additive manufacturing of oxide dispersion-strengthened steels / submitted by: Mareen Goßling. Lübeck, 2025
Inhalt
- Towards enhancing ODS composites in laser powder bed fusion: Investigating the incorporation of laser-generated zirconia nanoparticles in a model iron–chromium alloy
- Anchor 2
- Introduction
- Results
- Size distribution and chemical composition of nanoparticles generated by LAL from Zr700
- Chemical and morphological characteristics of oxide-additivated metal powder
- Microstructure and hardness of bulk material built by PBF-LBM
- Simulation of the influence of NP type and size on agglomeration during PBF-LBM
- Discussion and conclusions
- Materials and methods
- Acknowledgments
- References
- Introduction
- Conclusions
- Acknowledgements
- References
- Mechanical and Microstructural Effects of ZrO2 Nanoparticles in Fe20Cr Oxide Dispersion-Strengthened Alloys Processed by Laser Powder Bed Fusion
- 1. Introduction
- 2. Experimental Section
- 2.1. Materials
- 2.2. Processing
- 2.2.1. Nanoparticle Synthesis by LAL
- 2.2.2. Dielectrophoretic Deposition of Nanoparticle-Additivated Metallic Powders
- 2.2.3. AM by PBF-LB/M
- 2.2.4. Heat Treatment
- 2.3. Analytical Methods
- 2.3.1. Nanoparticle Size and Chemical Composition Investigated by TEM and SEM
- 2.3.2. Nanoparticle Crystal Structure Investigated by XRD
- 2.3.3. Chemical Composition Analysis of Powder and Bulk Samples
- 2.3.4. Microstructural Analysis of as- built Samples
- 2.4. Mechanical Testing
- 3. Results and Discussion
- 3.1. Comparison of NP Chemistry and Morphology
- 3.2. Influence of NP Loading and Type on the NP Distribution on ODS Powders
- 3.3. Influence of ODS Powders on the Microstructure of PBF-LB/M Processed Parts
- 3.4. Evaluation of NP Size and Distribution in PBF-LB/M Processed Parts
- 3.5. Influence of NP Size and Distribution on Mechanical Properties of PBF-LB/M Processed Parts
- 4. Conclusions