Abstract

The study of the structural evolution in the specimens of austenitic steel 321 manufactured by an additive method through the melting of a wire material by an electron beam in a vacuum chamber has been carried out using optical metallography, scanning electron microscopy and EBSD analysis. Tensile properties were determined on standard dumbbell specimens. The studies of the structure and properties showed that the 3D-printed samples have a pronounced dendritic structure with a sharp fusion boundary between the substrate and the printed material. The mechanical properties of the specimens are at the level of those cast austenitic steel 321.

Details

Title
Structural evolution of 321 stainless steel in electron beam freeform fabrication
Author
Kalashnikov, K N 1 ; Khoroshko, K S 1 ; Kalashnikova, T A 1 ; Chumaevskii, A V 1 ; Filippov, A V 1 

 Institute of Strength Physics and Materials Sciences SB RAS, 2/4 Akademichesky Ave., Tomsk, 634055, Russia 
Publication year
2018
Publication date
Nov 2018
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2565484626
Copyright
© 2018. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.