Bibliographic Details
| Title: |
Wire-influenced particle dynamics and fluid flow behaviors of melt pool in coaxial wire-powder fed directed energy deposition of metal matrix composites |
| Authors: |
Yue Zhou, Amir Shakibi, Manikanta Grandhi, Zhichao Liu, Fuda Ning |
| Source: |
Journal of Materials Research and Technology, Vol 36, Iss , Pp 2909-2924 (2025) |
| Publisher Information: |
Elsevier, 2025. |
| Publication Year: |
2025 |
| Collection: |
LCC:Mining engineering. Metallurgy |
| Subject Terms: |
Directed energy deposition, Coincident and coaxial wire-powder feeding, Wire-influenced particle dynamics, Fluid flow behaviors, DEM-CFD numerical model, In situ observation, Mining engineering. Metallurgy, TN1-997 |
| More Details: |
Compared to the powder/wire-fed directed energy deposition (DED), wire-powder-fed DED (WP-DED) can offset the shortcomings of single filler injection and improve the comprehensive performance of as-built parts. In addition, WP-DED facilitates the effective production of metal matrix composites (MMCs) by changing wire and powder feed rates. WP-DED demonstrates a more intricate physical variation due to different material properties, additional wire-particle interactions, and complex heat transfer behaviors. However, the studies on the laser-filler-melt pool interaction behaviors in this process remain unexplored. In this work, SiC-reinforced Stainless Steel (SS) 316L MMC parts are fabricated through coaxial wire-powder fed DED (CWP-DED) with high manufacturing flexibility and uniform filler melting. In particular, a coupled discrete element method (DEM) and computational fluid dynamics (CFD) numerical model is advanced to understand the in-flight filler dynamics and fluid flow behaviors within the melt pool. The predicted results are validated by experimental data quantified by a high-speed optical imaging system and thermal imager. This research aims to deepen understanding of CWP-DED mechanisms for broader MMC applications in manufacturing. |
| Document Type: |
article |
| File Description: |
electronic resource |
| Language: |
English |
| ISSN: |
2238-7854 |
| Relation: |
http://www.sciencedirect.com/science/article/pii/S2238785425008361; https://doaj.org/toc/2238-7854 |
| DOI: |
10.1016/j.jmrt.2025.04.015 |
| Access URL: |
https://doaj.org/article/734af5f3a7534fc7b6d4dc405de6e906 |
| Accession Number: |
edsdoj.734af5f3a7534fc7b6d4dc405de6e906 |
| Database: |
Directory of Open Access Journals |
