Nano-size fragmentation of Tantalum in Copper composite using additive manufacturing
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866915141679841280 |
|---|---|
| author | Das, Rakesh Dubey, Pawan Kumar de Oliveira, Raphael Benjamim Galvao, Douglas S. Manna, Indranil Joshi, Sameehan S. Owuor, Peter Samora Machado, Leonardo D. Katiyar, Nirmal Kumar Chakraborty, Suman Tiwary, Chandra Sekhar |
| author_facet | Das, Rakesh Dubey, Pawan Kumar de Oliveira, Raphael Benjamim Galvao, Douglas S. Manna, Indranil Joshi, Sameehan S. Owuor, Peter Samora Machado, Leonardo D. Katiyar, Nirmal Kumar Chakraborty, Suman Tiwary, Chandra Sekhar |
| contents | The biggest challenge in manufacturing an immiscible system is phase segregation and non-uniformity inside the composite matrix. Additive manufacturing has the potential to overcome these difficulties due to the high cooling rate achieved during the process. Here we have developed immiscible Copper-based composites reinforced with Tantalum, which were fabricated using the powder bed fusion melting (PBF-M) technique. The distinct advantage of utilizing Tantalum in this process resides in its high melting point, allowing it to remain in particle form within the composite and contribute to its mechanical and surface/wear properties. The PBF-M results in the in situ fragmentation of micron-size Tantalum particles into nanoparticle form through a surface roughening process during laser interaction, enhancing its mechanical and wear properties. The microstructural evolution of Cu-Ta composites is explained through multiscale numerical modeling. The enhanced yield strength and the dynamics of the Ta particles were corroborated by molecular dynamics simulations. The maximum yield strength is exhibited by Cu-5wt%Ta of 80 MPa. Addition of Ta also have significant improvement in wear properties of composites. The current results can be exploited to develop complex shape, high energy efficient copper-based composites. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_04373 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Nano-size fragmentation of Tantalum in Copper composite using additive manufacturing Das, Rakesh Dubey, Pawan Kumar de Oliveira, Raphael Benjamim Galvao, Douglas S. Manna, Indranil Joshi, Sameehan S. Owuor, Peter Samora Machado, Leonardo D. Katiyar, Nirmal Kumar Chakraborty, Suman Tiwary, Chandra Sekhar Materials Science Applied Physics The biggest challenge in manufacturing an immiscible system is phase segregation and non-uniformity inside the composite matrix. Additive manufacturing has the potential to overcome these difficulties due to the high cooling rate achieved during the process. Here we have developed immiscible Copper-based composites reinforced with Tantalum, which were fabricated using the powder bed fusion melting (PBF-M) technique. The distinct advantage of utilizing Tantalum in this process resides in its high melting point, allowing it to remain in particle form within the composite and contribute to its mechanical and surface/wear properties. The PBF-M results in the in situ fragmentation of micron-size Tantalum particles into nanoparticle form through a surface roughening process during laser interaction, enhancing its mechanical and wear properties. The microstructural evolution of Cu-Ta composites is explained through multiscale numerical modeling. The enhanced yield strength and the dynamics of the Ta particles were corroborated by molecular dynamics simulations. The maximum yield strength is exhibited by Cu-5wt%Ta of 80 MPa. Addition of Ta also have significant improvement in wear properties of composites. The current results can be exploited to develop complex shape, high energy efficient copper-based composites. |
| title | Nano-size fragmentation of Tantalum in Copper composite using additive manufacturing |
| topic | Materials Science Applied Physics |
| url | https://arxiv.org/abs/2502.04373 |