Clustering and diffusion in aluminium alloys

Research output: ThesisDoctoral Thesis

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Abstract

This thesis gives an overview of existing information on natural aging and clustering in aluminum alloys. An in-depth understanding of existing analysis methods of clustering is established. Moreover, an approach is developed, and applied, to access natural aging times below one hour via atom probe tomography. With the realized experiments it is shown that the as-quenched state can be investigated. Moreover it is demonstrated that clustering and all non-equilibrium vacancy controlled diffusionional processes are size-dependent and natural aging is effectively stopped when the material dimensions reach the nanometer scale.
Translated title of the contributionClusterbildung und Diffusion in Aluminium Legierungen
Original languageEnglish
QualificationDr.mont.
Awarding Institution
  • Montanuniversität
Supervisors/Advisors
  • Pogatscher, Stefan, Assessor A (internal)
  • Clemens, Helmut, Assessor B (internal)
Publication statusPublished - 2019

Bibliographical note

embargoed until 06-06-2020

Keywords

  • Clustering
  • Diffusion
  • Atom probe tomography
  • Aluminium
  • AlMgSi

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