Open AccessStructural features of metals and alloys formed in the process of selective laser melting
Author(s) -
К. О. Базалеева,
Е. В. Цветкова
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1942/1/012051
Subject(s) - materials science , selective laser melting , alloy , austenite , texture (cosmology) , laser , metallurgy , nickel , temperature cycling , structure formation , dislocation , crystallography , thermal , microstructure , composite material , thermodynamics , optics , chemistry , physics , quantum mechanics , artificial intelligence , galaxy , computer science , image (mathematics)
The features of the structure formed during selective laser melting (SLM) on the example of austenitic steel Fe-17%Cr-12%Ni-0.02%C (316L) and nickel alloy Ni-11%Cr-5%Co-6%Al-3%Ti-4%Mo-5%W-0.16%C-0.02%B are considered in this work. The structure formation occurs under conditions of ultrafast cooling rates from the region of the melt during laser treatment and subsequent thermal cycling during solidification of material adjacent regions. The following structural features are considered: hierarchical structure, heterogeneity of the alloying elements distribution, dislocation structure, macrostresses and crystallographic texture.