Open AccessProbable Ways of Hardening in the Metal Structure Obtained by Selective Laser Melting Technology
Author(s) -
В. И. Алексеев,
B K Barahtin,
А. С. Жуков,
G. A. Panova,
S. G. Petrova,
E.A. Shirokina
Publication year - 2021
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/1079/3/032042
Subject(s) - hardening (computing) , crystallization , materials science , metal , condensation , selective laser melting , chemical engineering , metallurgy , chemical physics , thermodynamics , microstructure , nanotechnology , chemistry , physics , layer (electronics) , engineering
Here is considered local melting events realizable under nonequlibrium thermodynamic conditions and phase-structural transformations of materials produced by additive technology using steel powders of different chemical composition. The mechanism of formation of nano- and micro-particlesis, which are crystallization nucleus and hardening units is illustrated here. The formation of such particles occurs due to condensation mechanism in the sequence: steam – cluster – quasinanoparticle. The quality of obtained material is defined by the degree and quality of this process.