|About this Abstract
||Materials Science & Technology 2019
||Additive Manufacturing: Effective Production, Characterization, and Recycling of Powder Materials
||Determination of Viscosity of Metal Melts by High Temperature Rheometry
||Christopher Giehl, Mario Kleindienst, Daniela Ehgartner
|On-Site Speaker (Planned)
Rheometry is a fairly common applied technique in a broad range of applications. In metal industry, however, rheometry is a novelty due to a lack of existing devices that bring the required sensitivity to measure the low viscosities of metal melts at very high temperatures. We here present quantitative data of viscosity measurements on different metal alloys used for the production of metal powder for additive manufacturing that were obtained by a special high temperature searle-type rheometer with a concentric cylinder measuring system. Besides surface tension viscosity is a crucial value for the process of gas atomisation and responsible for the quality of the produced metal powder.
||Planned: At-meeting proceedings