| Issue |
SHS Web of Conf.
Volume 44, 2018
IV International Scientific Conference “The Convergence of Digital and Physical Worlds: Technological, Economic and Social Challenges” (CC-TESC2018)
|
|
|---|---|---|
| Article Number | 00017 | |
| Number of page(s) | 8 | |
| DOI | https://doi.org/10.1051/shsconf/20184400017 | |
| Published online | 05 June 2018 | |
Formation of a given variable structure in detail by means of selective laser melting technologya
1 National Technological Initiative Center “New Production Technologies”, Peter the Great St. Petersburg Polytechnic University, 195251, Polytechnicheskaya st., 29, Russian Federation
2 Delft University of Technology, Mekelweg 2, 2628 CD Delft, Netherlands
* Corresponding author: evgenii.borisov@icloud.com
The issue for creation of products with functional properties adapted to working conditions is currently vital. The possibility of creating local areas with a specified microstructure and properties in the product is of special interest. This work covers the performed study of the structure and properties of the heat-resistant nickel alloy Inconel 718, depending on the process parameters used. The possibility for combination of different process modes during manufacture of one product to obtain its variable structure is shown. The specimens with areas of small equiaxed and large elongated grains were studied. The carried out EBSD analysis showed that the local change in the size and morphology of the material grain is possible by changing the layer thickness and process parameters of the selective laser melting process. It is shown that after the heat treatment and hot isostatic pressing, the differences in the structure and mechanical properties between the areas remain.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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