In Situ Real-Time Monitoring of Aging Processes in an Aluminum Alloy by High-Precision Dilatometry

Martin Luckabauer, Elisabeth Hengge, Gregor Klinser, Wolfgang Sprengel*, Roland Würschum

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference paperpeer-review


A detailed understanding of the atomistic processes governing the age hardening response of light metal alloys is of vital importance for the optimization of their properties. While a static characterization of metastable precipitates is possible, e.g., by advanced microscopic techniques, the kinetic aspects of the underlying formation of phases are by far more difficult to assess. In this work we present isothermal, high-stability laser dilatometric measurements, during the natural and artificial aging of a commercial aluminum alloy (Al-Mg-Si), with a rate resolution below 1 nm/h. The results of this case study show that the presented dilatometric technique allows for direct monitoring of the precipitation process with an unprecedented accuracy on the volume as well as on the time scale.
Original languageEnglish
Title of host publicationMagnesium Technology 2017
Number of pages6
ISBN (Electronic)978-331952391-0
Publication statusPublished - 2017
EventInternational Symposium on Magnesium Technology 2017 - San Diego, United States
Duration: 26 Feb 20172 Mar 2017

Publication series

NameThe Minerals, Metals & Materials Series
ISSN (Print)2367-1181
ISSN (Electronic)2367-1696


ConferenceInternational Symposium on Magnesium Technology 2017
Country/TerritoryUnited States
CitySan Diego

Fields of Expertise

  • Advanced Materials Science


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