About this Abstract |
Meeting |
MS&T21: Materials Science & Technology
|
Symposium
|
Additive Manufacturing of Metals: Microstructure, Properties and Alloy Development
|
Presentation Title |
The Material Quality of Samples Obtained by Selective Laser Melting Method from IN718 Alloy Powder |
Author(s) |
Vladimir Klochikhin, Pavel Kasay, Konstantin Balushok, Valeriy Shilo, Valeriy Naumyk |
On-Site Speaker (Planned) |
Valeriy Naumyk |
Abstract Scope |
It was studied the material quality of the IN718 alloy samples made by the method of selective laser melting (SLM) in different directions from the powder obtained by the centrifugal sputtering method.
It was found that the mechanical (at all temperatures) and heat-resistant properties of the IN718 alloy samples (both vertical and horizontal) meet the requirements of AMS 5662M and significantly exceed the requirements to the ЭП718-ВД alloy.
The microstructure of samples is a γ-solid solution with the presence of carbides and carbonitrides. In the microstructure there is a structural inhomogeneity. Heat treatment leads to obtaining a more uniform structure due to the equalization of the chemical composition between the zones of layer-by-layer melting. |