<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Selective laser melting (SLM) falls into the category of additive manufacturing technologies that are being increasingly used in the aerospace industry. This study presents the results of the examination of the microstructure and mechanical properties of selective laser melted Inconel 718. The tests were carried out for samples of different geometry (thickness, shape). The investigation showed the effect of the specimen’s size and the printing direction on the microstructure and mechanical properties. In the microstructural investigation, light and scanning electron microscopes were used. The microstructure investigation included measurements of the grain size and the carbides’ content. In order to estimate porosity computer tomography was used. Tensile tests were carried out at room temperature. The results showed differences in mechanical and microstructural properties of different size specimens.</p>
</abstract>

Selective laser melting (SLM) falls into the category of additive manufacturing technologies that are being increasingly used in the aerospace industry. This study presents the results of the examination of the microstructure and mechanical properties of selective laser melted Inconel 718. The tests were carried out for samples of different geometry (thickness, shape). The investigation showed the effect of the specimen’s size and the printing direction on the microstructure and mechanical properties. In the microstructural investigation, light and scanning electron microscopes were used. The microstructure investigation included measurements of the grain size and the carbides’ content. In order to estimate porosity computer tomography was used. Tensile tests were carried out at room temperature. The results showed differences in mechanical and microstructural properties of different size specimens.

Microstructural And Mechanical Properties Of Selective Laser Melted Inconel 718 For Different Specimen Sizes

Slawomir.Czarnewicz@ilot.lukasiewicz.gov.pl

Wrocław University of Science and Technology

Fatigue of Aircraft Structures

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Selective laser melting (SLM) falls into the category of additive manufacturing technologies that are being increasingly used in the aerospace industry. This...

Microstructural And Mechanical Properties Of Selective Laser Melted Inconel 718 For Different Specimen Sizes

Published Online: Jul 23, 2021

Page range: 15 - 26

DOI: https://doi.org/10.2478/fas-2020-0002

Keywords
additive manufacturing, tensile test, microstructure investigation, IN718, Inconel 718

© 2020 Bartosz Madejski et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Microstructural And Mechanical Properties Of Selective Laser Melted Inconel 718 For Different Specimen Sizes

Published Online: Jul 23, 2021

Page range: 15 - 26

DOI: https://doi.org/10.2478/fas-2020-0002

Keywordsadditive manufacturing, tensile test, microstructure investigation, IN718, Inconel 718

© 2020 Bartosz Madejski et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
additive manufacturing, tensile test, microstructure investigation, IN718, Inconel 718