Phase transitions of additively manufactures components

Important results from the project

** Denna text är maskinöversatt ** To show how large-scale research facilities can be used for in-situ studies of additively manufactured components, especially when these are subjected to heat treatments that affect their microstructure. This would be done for 4 different material compositions with both X-ray and neutron methods. Powder samples were prepared for this purpose, and also additively manufactured components based on the powder materials produced.

Expected long term effects

** Denna text är maskinöversatt ** Initially, the powder samples were studied in-situ using X-ray diffraction during ongoing heat treatment, in the Petra III synchrotron plant at DESY in Hamburg. The results showed that phase transformations could be followed with good resolution and accuracy, and that e.g. the proportion of retained austenite (of importance for mechanical properties) could be clearly monitored.

Approach and implementation

** Denna text är maskinöversatt ** The project group consisted of researchers from the Department of Chemistry - Ångström at Uppsala University, and product developers at Höganäs AB. While the 4 powder compositions were chosen jointly by the project team, both the different powders and the additively manufactured components were manufactured at Höganäs AB. All measurements and interpretations of data were performed by the researchers at Uppsala University.