Open AccessResearch of post-processing approaches for parts obtained by the method of selective laser melting
Author(s) -
A. A. Voznesenskaya,
Д. А. Кочуев,
R. V. Chkalov,
А. В. Киреев,
V. P. Morozov
Publication year - 2020
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 - 10.1088/1742-6596/1439/1/012028
Subject(s) - muffle furnace , microstructure , materials science , selective laser melting , pressing , metallurgy , phase (matter) , chemical composition , composite material , chemistry , biochemistry , organic chemistry , calcination , catalysis
In this work, samples were obtained from the powder of heat-resistant steel by the method of selective laser melting. Samples were heat treated in a muffle furnace. Also, a number of samples were subjected to hot isostatic pressing. The microstructure of the formed material, pores and microcracks were detected by metallographic analysis. The graphs of the structural-phase composition of the powder material before and after melting, as well as after the post-processing methods were obtained Based on the data obtained, conclusions were made about the effect of thermal post-processing on changes in the nature of the distribution of defects and changes in the microstructure, as well as on changes in the structure-phase composition.