Open AccessStructure and mechanical properties of 09Mn2Si steel surfaced layers and welds modified by adding titanium carbonitride nanoparticles
Author(s) -
N. K. Galchenko,
В. П. Самарцев,
К. А. Колесникова,
И. В. Власов,
S. V. Panin,
A. V. Yakovlev
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/681/1/012013
Subject(s) - materials science , welding , indentation hardness , titanium , electrode , scanning electron microscope , composite material , toughness , ferrite (magnet) , nanoparticle , metallurgy , microstructure , nanotechnology , chemistry
The study on structure and mechanical properties of surfaced coatings and welded joints of 09Mn2Si steel formed with the use of a standard electrode as well as one modified by adding titanium carbonitride nanoparticles was carried out. Optical and scanning electron microscopy, microhardness measurement were employed to investigate the structure at welding with a standard electrode, as well as to illustrate changes resulting from the electrode modification through adding titanium carbonitride nanoparticles. Evaluation of mechanical properties was performed by conducting tests on static, cyclic and impact loading. It is shown that welding with the use of the modified electrode gives rise to decreasing the size of ferrite grains and increasing impact toughness and fatigue life.