| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Refractory Metallic Materials
|
| Presentation Title |
Interfacial Microstructures between Mo and Stainless Steel Fabricated by Directed Energy Deposition for High Temperature Service Applications |
| Author(s) |
Sumin Lee, Seunghyun Lee, Jaeyoon Bae, Sanghoon Noh |
| On-Site Speaker (Planned) |
Sumin Lee |
| Abstract Scope |
The austenitic stainless steel is one of the key structural materials in various industrial fields such as marine, aerospace, thermal power, and nuclear/fusion applications because of its excellent mechanical property and corrosion resistances. Nowadays, additional fabrication processes to enhance the anti-environmental resistance of stainless steel were being required. In present study, Mo layer was fabricated on austenitic stainless steel and interfacial microstructures were investigated. A directed energy deposition process was successfully employed to fabricate a novel Mo coated layer on the surface of the stainless steel substrates. Microstructural observations revealed that DED-Mo has fine grains aligned toward a process direction, and favorable interface without critical micro-cracks and brittle intermetallic layer. This result showed that DED process is considered to be one of the promising ways to join dissimilar materials between refractory metal and structural steels, which could avoid the formation of an interfacial intermetallic layer. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Temperature Materials, Nuclear Materials, Surface Modification and Coatings |