| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Sustainability of High Temperature Alloys
|
| Presentation Title |
Heat-Resistant Nickel Alloy ЖС3ДК-ВІ Modification with Titanium Carbonitride Ultrafine Powders |
| Author(s) |
Dmytro Tomkin, Sergey Danilov, Olena Naumyk, Oleksii Pedash, Valeriy Naumyk |
| On-Site Speaker (Planned) |
Valeriy Naumyk |
| Abstract Scope |
The chemical composition, macro- and microstructure of the experimental heat-resistant cast alloy have been studied. A fractographic study of the samples fracture structure was carried out.
The modifying effect of titanium carbonitride ultrafine powder on the dendritic structure, distribution and change in the morphology of primary carbides, the number and distribution of carbonitride particles has been established.
It is shown that the use of ultrafine titanium carbonitride powders for modification of the heat-resistant nickel alloy ЖС3ДК-ВІ makes it possible to increase the mechanical and heat-resistant properties of the material. Increasing of the modifier amount promotes grain refinement.
More stable properties and favorable structure are provided by melt modification with ultrafine Ti(C,N) particles in the form of briquettes. It was found that modification with Ti(C,N) powder leads to a decrease in the impact toughness values due to the formation of boundary microporosity. |
| Proceedings Inclusion? |
Planned: |