DYNA JOURNAL ENGINEERING

Key words:

Aceros de temple y revenido, Nanopartículas, Coladas a escala de laboratorio: Microestructura, Afinamiento de grano, Endurecimiento por solución sólida, Propiedades mecánicas. Hardened and tempered steel, Nanoparticle, Laboratory scale casting, Microstructure, Grain refinement, Solid solution hardening, Mechanical properties

Article type:

ARTICULO DE INVESTIGACION / RESEARCH ARTICLE

Section:

RESEARCH ARTICLES

Novel processing technologies have allowed the reinforcement of several steel grades and alloys through the fine dispersion of different types of particles. However, the addition of ceramic particles in the steel melt causes agglomeration and coarsening phenomena. For this reason, little research has been carried out to add ceramic particles in steel in the traditional steelmaking process.
Here we report a hardened and tempered steel grade that is reinforced for the first time through the addition of ceramic nanoparticles, such as TiCN and SiC, into the steel melt at laboratory scale. The results obtained from the tensile tests and hardness measurements reveal the mechanical behaviour of the steel grade is enhanced after the addition of the nanoparticles.

KEYWORDS: Hardened and tempered steel; Nanoparticle; Laboratory scale casting; Microstructure; Grain refinement; Solid solution hardening; Mechanical properties