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 contributionAcademicpeer-review

6 Citations (Scopus)
2 Downloads (Pure)


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
EditorsNeale R. Neelameggham, Alok Singh, Kiran N. Solanki, Dmytro Orlov
Number of pages6
ISBN (Electronic)978-3-319-52392-7
ISBN (Print)978-3-319-52391-0
Publication statusPublished - 1 Jan 2017
Externally publishedYes
Event9th International Symposium on Magnesium Technology, 2017 - San Diego, United States
Duration: 26 Feb 20172 Mar 2017
Conference number: 9

Publication series

NameMinerals, Metals and Materials Series
VolumePart F8
ISSN (Print)2367-1181
ISSN (Electronic)2367-1696


Conference9th International Symposium on Magnesium Technology, 2017
Country/TerritoryUnited States
CitySan Diego


  • Aging
  • Aluminum
  • Dilatometry
  • Precipitation


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