Structural features of metals and alloys formed in the process of selective laser melting

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...

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Bibliographic Details
Published in:Journal of physics. Conference series 2021-06, Vol.1942 (1), p.12051
Main Authors: Bazaleeva, K O, Tsvetkova, E V
Format: Article
Language:English
Subjects:
Alloying elements
Aluminum
Austenitic stainless steels
Chromium
Cooling rate
Crystal dislocations
Crystallography
Heat treatment
Heterogeneity
Iron
Laser beam melting
Laser cooling
Lasers
Molybdenum
Nickel
Physics
Rapid prototyping
Solidification
Structural hierarchy
Thermal cycling
Titanium
Tungsten
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Summary: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.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1942/1/012051