About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
|
Symposium
|
Advanced Materials for Harsh Environments
|
Presentation Title |
Heat-Resistant Nickel Alloy ЖС3ДК-ВІ Modification with Titanium Carbonitride Ultrafine Powders |
Author(s) |
Vladimir Klochikhin, Sergey Danilov, Dmytro Tomkin, Valeriy Naumyk |
On-Site Speaker (Planned) |
Valeriy Naumyk |
Abstract Scope |
The chemical composition, macro- and microstructure of the experimental alloy have been studied. A fractographic study of the samples fracture structure was carried out.
The modifying effect of titanium carbonitride ultrafine particles 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 bulk modification of the heat-resistant nickel alloy ЖС3ДК-ВІ makes it possible to increase the mechanical and heat-resistant properties of the material. Increasing the amount of modifier 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 powdered Ti(C,N) leads to a decrease in the impact toughness values due to the formation of boundary microporosity. |
Proceedings Inclusion? |
Planned: At-meeting proceedings |