Preliminary communication

Studying nanopowder modifiers (NPM) effect on structure and properties steels

P. V. Kovalev ; Karaganda State Technical University, Karaganda, Kazakhstan
S. V. Ryaboshuk ; Karaganda State Technical University, Karaganda, Kazakhstan
A. Z. Issagulov ; Karaganda State Technical University, Karaganda, Kazakhstan
M. K. Ibatov ; Karaganda State Technical University, Karaganda, Kazakhstan
Sv. S. Kvon ; Karaganda State Technical University, Karaganda, Kazakhstan
V. Yu. Kulikov orcid.org/0000-0001-6678-6673 ; Karaganda State Technical University, Karaganda, Kazakhstan

Abstract

The article investigated the macrostructure and microstructure of cast metal. Studies have shown that the introduction of nanopowder modifiers leads to a significant modifying effect, which has a positive effect on the structure of cast metal and is manifested in the grinding of both cast grain and dendritic structure. It was found that when the concentration of NPM in the metal in the form of particles of titanium nitride is 0,035 %, the nitride particles are distributed fairly uniformly in the metal volume, the cast metal structure is highly dispersed, and the mechanical properties of the steel significantly increase after thermomechanical processing.

Keywords

steel; modifier; titanium carbonitride; mechanical properties; structure

Hrčak ID:

241216

URI

https://hrcak.srce.hr/241216

Publication date:

1.10.2020.

Visits: 676 *